Log1
Log1b
Laser Excitation
Ultrafast TiSapphire Oscillator
Legend OPA 600nm
Legend OPA
Legend Amplifier Crystal
Synchronous Pumped Dye Lasers
Inscribing Fiber Bragg grating
Pump-probe at 77K
Pumping TiSapphire Laser
Pump-probe using OPAs
Pump-probe with Ti:Sapphire Oscillator
Legend OPAs pump-probe setup
Multipass Ultrafast Amplifier
Excitation 500nm 45fs pulses
Excitation 266nm 100fs PL
Laser Excitation
Optical pump-probe setup
Pump probe 100fs setup
RegA pump-probe setup
RegA pump probe setup
 

Publications

Year: 2024

All-Perovskite Multicomponent Nanocrystal Superlattices Taras V. Sekh, Ihor Cherniukh, Etsuki Kobiyama, Thomas J. Sheehan, Andreas Manoli, Chenglian Zhu, Modestos Athanasiou, Marios Sergides, Oleksandra Ortikova, Marta D. Rossell, Federica Bertolotti, Antonietta Guagliardi, Norberto Masciocchi, Rolf Erni, Andreas Othonos, Grigorios Itskos, William A. Tisdale, Thilo Stöferle, Gabriele Rainò, Maryna I. Bodnarchuk*, and Maksym V. Kovalenko

Strong coupling in mechanically flexible free-standing organic membranes  Kyriacos Georgiou, Modestos Athanasiou, Rahul Jayaprakash, David G Lidzey, Grigorios Itskos, Andreas Othonos

Year: 2023

Boosting the Photoluminescence Effciency of InAs Nanocrystals Synthesized with Aminoarsine via a ZnSe Thick-Shell Overgrowth Dongxu Zhu, Houman Bahmani Jalali, Gabriele Saleh, Francesco Di Stasio, Mirko Prato, Nefeli Polykarpou, Andreas Othonos, Sotirios Christodoulou, Yurii P. Ivanov, Giorgio Divitini, Ivan Infante, Luca De Trizio, and Liberato Manna

The Impact of Ligand Removal on the Optoelectronic Properties of Inorganic and Hybrid Lead Halide Perovskite Nanocrystal Films Paris Papagiorgis, Marios Sergides, Andreas Manoli, Modestos Athanasiou, Caterina Bernasconi, Fedros Galatopoulos, Apostolos Ioakeimidis, Constantinos Nicolaides, Epameinondas Leontidis, Theodossis Trypiniotis, Stelios Choulis, Maryna I. Bodnarchuk, Maksym V. Kovalenko, Andreas Othonos, and Grigorios Itskos

Critical and controversial issues pertaining to the growth and properties of Cu2O in the context of energy conversion Eleni Prountzou;  Andreas Ioannou; Dimitrios Sapalidis; Eleni Pavlidou; Maria Katsikini; Andreas Othonos; Matthew Zervos

Year: 2022

Colloidal Quantum Dot Infrared Lasers Featuring Sub- Single-Exciton Threshold and Very High Gain Nima Taghipour, Mariona Dalmases, Guy L. Whitworth, Miguel Dosil, Andreas Othonos, Sotirios Christodoulou, Shanti Maria Liga, and Gerasimos Konstantatos

Low-Threshold, Highly Stable Colloidal Quantum Dot Short-Wave Infrared Laser enabled by Suppression of Trap-Assisted Auger Recombination Taghipour N, Whitworth GL, Othonos A, Dalmases M, Pradhan S, Wang Y, Kumar G, Konstantatos G

p-Type Iodine-Doping of Cu3N and Its Conversion to γ-CuI for the Fabrication of γ-CuI/Cu3N p-n Heterojunctions
Tilemachou A, Zervos M, Othonos A, Pavloudis T, Kioseoglou J

Cu3N/Cu2O core–shell nanowires: growth and properties
Kalliopi Mavridou, Maria Katsikinia, Andreas Othonos, Nikoletta Florini, Philomela Komninou and Matthew Zervos

Flexible, Free-Standing Polymer Membranes Sensitized by CsPbX3 Nanocrystals as Gain Media for Low Threshold, Multicolor Light Amplification Modestos Athanasiou, Andreas Manoli, Paris Papagiorgis, Kyriacos Georgiou, Yuliia Berezovska, Andreas Othonos, Maryna I. Bodnarchuk, Maksym V. Kovalenko, and Grigorios Itskos

Year:  2021

Controlling the optical properties of nanostructured oxide-based polymer films
Angastiniotis NC, Christopoulos S, Petallidou KC, Efstathiou AM, Othonos A, Koutsokeras L

Surface Functionalization of CsPbBr3 Νanocrystals for Photonic Applications   Manoli A, Papagiorgis P, Sergides M, Bernasconi C, Athanasiou M, Pozov S, Choulis SA, Bodnarchuk MI, Kovalenko MV, Othonos A and others

Optical Transitions in Silver Indium Selenide Nanocrystals: Implications for Light-Emitting and Light-Imaging Applications
Zacharia A, Papagiorgis P, Yarema O, Moser A, Othonos A, Luisier M, Wood V, Yarema M, Itskos G

Impact of Oxygen on the Properties of Cu3N and Cu3–xN1–xOx
Zervos M, Othonos A, Pavloudis T, Giaremis S, Kioseoglou J, Mavridou K, Katsikini M, Pinakidou F, Paloura EC

Year: 2020

Single-Exciton Gain and Stimulated Emission Across the Infrared Telecom Band from Robust Heavily Doped PbS Colloidal Quantum Dots Christodoulou S, Ramiro I, Othonos A, Figueroba A, Dalmases M, Özdemir O, Pradhan S, Itskos G, Konstantatos G

Exciton–Ligand Interactions in PbS Quantum Dots Capped with Metal Chalcogenides
Paris Papagiorgis, Demetra Tsokkou, Kushagra Gahlot, Loredana Protesescu, Andreas Manoli, Felix Hermerschmidt, Constantinos Christodoulou, Stelios A. Choulis, Maksym V. Kovalenko, Andreas Othonos, and Grigorios Itskos

Ultrafast dynamics and short-lived carriers in Cu nitride and oxynitride layers
Sergides M, Zervos M, Othonos A

Observation of the Direct Energy Band Gaps of Defect-Tolerant Cu3N by Ultrafast Pump-Probe Spectroscopy
Zervos M, Othonos A, Sergides M, Pavloudis T, Kioseoglou J

Year: 2019

Unraveling the Radiative Pathways of Hot Carriers upon Intense Photoexcitation of Lead Halide Perovskite Nanocrystals
Papagiorgis P, Manoli A, Michael S, Bernasconi C, Bodnarchuk MI, Kovalenko MV, Othonos A, Itskos G

Epitaxial highly ordered Sb:SnO2 nanowires grown by the vapor liquid solid mechanism on m-, r- and a-Al2O3
Zervos M, Lathiotakis N, Kelaidis N, Othonos A, Tanasa E, Vasile E

High-Temperature Pb Doping of SnO₂ and Growth Limitations of PbₓSn1-xO₂ Nanowires Versus Low-Temperature Growth of   PbₓSn1-xO for Energy Storage and Conversion Zervos M, Othonos A, Tanasă E

Year: 2018

Doping and Conductivity Limitations in Sb:SnO2 Nanowires Grown by the Vapor Liquid Solid Mechanism 
Matthew Zervos, Andreas Othonos, Eugenia Tanasă, Eugeniu Vasile

SnO2/PbOx (x = 1, 2) Core–Shell Nanowires and Their Growth on C-Fiber Networks for Energy Storage
Zervos M, Othonos A, TanasÄ E, Vasile E, Leontidis E

Efficient optical amplification in the nanosecond regime from formamidinium lead iodide nanocrystals
Paris Papagiorgis, Andreas Manoli, Loredana Protesescu, Charis Achilleos, Miltiadis Violaris, Konstantinos Nicolaides, Theodosis Trypiniotis, Maryna I Bodnarchuk, Maksym V Kovalenko, Andreas Othonos, Grigorios Itskos

Year:2017

Photovoltaic limitations of BODIPY: fullerene based bulk heterojunction solar cells  Derya Baran, Sachetan Tuladhar, Solon P Economopoulos, Marios Neophytou, Achilleas Savva, Grigorios Itskos, Andreas Othonos, Donal DC Bradley, Christoph J Brabec, Jenny Nelson, Stelios A Choulis

Sn:In2O3 and Sn:In2O3/NiS2 Core–Shell Nanowires on Ni, Mo Foils and C Fibers for H2 and O2
Matthew Zervos, Epameinondas Leontidis, Eugenia Tanasa, Eugeniu Vasile, Andreas Othonos

The influence of additives in the stoichiometry of hybrid lead halide perovskites Ignasi Burgués-Ceballos, Achilleas Savva, Efthymios Georgiou, Konstantinos Kapnisis, Paris Papagiorgis, Androniki Mousikou, Grigorios Itskos, Andreas Othonos, Stelios A Choulis

Long-lived hot carriers in formamidinium lead iodide nanocrystals
Paris Papagiorgis, Loredana Protesescu, Maksym V Kovalenko, Andreas Othonos, Grigorios Itskos

Year:2016

Core–shell PbS/Sn: In2O3 and branched PbIn2S4/Sn: In2O3 nanowires in quantum dot sensitized solar cells
Matthew Zervos, Eugenia Vasile, Eugeniu Vasile, Andreas Othonos

Pb doping of In2O3 and their conversion to highly conductive PbS/In2S3− 3xO3x nanowires with infrared emission
Matthew Zervos, A Othonos, V Gianetta, Androula Galiouna Nassiopoulou

Current Transport Properties of CuS/Sn:In2O3 versus CuS/SnO2 Nanowires and Negative Differential Resistance in Quantum Dot Sensitized Solar Cells Matthew Zervos, Eugenia Vasile, Eugeniu Vasile, Evangelia Karageorgou, Andreas Othonos

The influence of doping on the optoelectronic properties of PbS colloidal quantum dot solids
Panagiotis Papagiorgis, A Stavrinadis, A Othonos, G Konstantatos, Grigorios Itskos

Year:2015

Förster resonant energy transfer from an inorganic quantum well to a molecular material: unexplored aspects, losses, and implications to applications
Grigorios Itskos, Andreas Othonos, Stelios A Choulis, Eleftherios Iliopoulos

Electrical, structural, and optical properties of sulfurized Sn-doped In2O3 nanowires
Matthew Zervos, CN Mihailescu, John Giapintzakis, A Othonos, A Travlos, CR Luculescu

Ultrafast spectroscopy and red emission from β-Ga2 O3/β-Ga2S3 nanowires
Katerina M Othonos, Matthew Zervos, Constantinos Christofides, Andreas Othonos

Sn doped β-Ga2O3 and β-Ga2S3 nanowires with red emission for solar energy spectral shifting
Matthew Zervos, A Othonos, V Gianneta, A Travlos, Androula Galiouna Nassiopoulou

Compositional Tuning, Properties and Conversion of In2xGa2-2xO3 Nanowires Into I–III–VI2 Chalcopyrite Cu(InxGa1-X)S2
Matthew Zervos, Andreas Othonos

Sulfur doping of M/In2O3 (M=Al,W) nanowires with room temperature near infrared emission
Matthew Zervos, C Mihailescu, John Giapintzakis, A Othonos, A Travlos

Surface passivation and conversion of SnO2 to SnS2 nanowires
Matthew Zervos, CN Mihailescu, John Giapintzakis, A Othonos, CR Luculescu

Year:2014

Ultraviolet emission from low resistance Cu2SnS3/SnO2 and CuInS2/Sn:In2O3 nanowires
E Karageorgou, Matthew Zervos, A Othonos

Broad compositional tunability of indium tin oxide nanowires grown by the vapor-liquid-solid mechanism
Matthew Zervos, CN Mihailescu, John Giapintzakis, CR Luculescu, N Florini, Ph Komninou, J Kioseoglou, A Othonos

Photophysics of PbS quantum dot films capped with arsenic sulfide ligands
Demetra Tsokkou, Paris Papagiorgis, Loredana Protesescu, Maksym V Kovalenko, Stelios A Choulis, Constantinos Christofides, Grigorios Itskos, Andreas Othonos

Year:2013

Structure, morphology, and photoluminescence of porous Si nanowires: effect of different chemical treatments
Ioannis Leontis, Andreas Othonos, Androula G Nassiopoulou

Zn3N2 nanowires: growth, properties and oxidation
Matthew Zervos, Chrystalla Karipi, Andreas Othonos

Size‐dependent charge transfer in blends of PbS quantum dots with a low‐gap silicon‐bridged copolymer
Grigorios Itskos, Paris Papagiorgis, Demetra Tsokkou, Andreas Othonos, Felix Hermerschmidt, Solon P Economopoulos, Maksym Yarema, Wolfgang Heiss, Stelios Choulis

Ultrafast transient spectroscopy and photoluminescence properties of V2O5 nanowires
Andreas Othonos, Constantinos Christofides, Matthew Zervos

Ultrafast pulsed laser deposition of carbon nanostructures: Structural and optical characterization
Maria Pervolaraki, Ph Komninou, J Kioseoglou, A Othonos, John Giapintzakis

Concentration and excitation effects on the exciton dynamics of poly (3-hexylthiophene)/PbS quantum dot blend films
Demetra Tsokkou, Grigorios Itskos, S Choulis, Maksym Yarema, Wolfgang Heiss, Andreas Othonos

Structural properties of SnO2 nanowires and the effect of donor like defects on its charge distribution
Matthew Zervos, A Othonos, Demetra Tsokkou, J Kioseoglou, E Pavlidou, Philomela Komninou

Year:2012

Excitation dynamics of a low bandgap silicon-bridged dithiophene copolymer and its composites with fullerenes 
Andreas Othonos, Grigorios Itskos, Marios Neophytou, Stelios A Choulis

Carrier dynamics and conductivity of SnO2 nanowires investigated by time-resolved terahertz spectroscopy Demetra Tsokkou, Andreas Othonos, Matthew Zervos

The nitridation of ZnO nanowires
Matthew Zervos, Chrystalla Karipi, Andreas Othonos

A systematic study of the nitridation of SnO2 nanowires grown by the vapor liquid solid mechanism
Matthew Zervos, Andreas Othonos

Synthesis of hybrid polymethacrylate–noble metal (M= Au, Pd) nanoparticles for the growth of metal-oxide semiconductor nanowires
Matthew Zervos, Maria Demetriou, Theodora Krasia-Christoforou, A Othonos, RP Turcu 

Year:2011

Ultrafast hole carrier relaxation dynamics in p-type CuO nanowires
Andreas Othonos, Matthew Zervos

Gallium hydride vapor phase epitaxy of GaN nanowires
Matthew Zervos, Andreas Othonos

An investigation into the conversion of In2O3 into InN nanowires
Polina Papageorgiou, Matthew Zervos, Andreas Othonos

Optical properties of organic semiconductor blends with near‐infrared quantum‐dot sensitizers for light harvesting applications
Grigorios Itskos, Andreas Othonos, Tobias Rauch, Sandro F Tedde, Oliver Hayden, Maksym V Kovalenko, Wolfgang Heiss, Stelios A Choulis

Enhanced growth and photoluminescence properties of SnxNy (x> y) nanowires grown by halide chemical vapor deposition
Matthew Zervos, Andreas Othonos

Year:2010

A systematic investigation into the conversion of β-Ga2O3 to GaN nanowires using NH3 and H2: Effects on the photoluminescence properties
Andreas Othonos, Matthew Zervos, Constantinos Christofides

Carrier dynamics in β-Ga2O3 nanowires
Andreas Othonos, Matthew Zervos, Constantinos Christofides

Carrier dynamics in InS nanowires grown via chemical vapor deposition
Andreas Othonos, Matthew Zervos

Hydride-assisted growth of GaN nanowires on Au/Si (0 0 1) via the reaction of Ga with NH3 and H2
Matthew Zervos, Andreas Othonos
 

High yield–low temperature growth of indium sulphide nanowires via chemical vapor deposition
Matthew Zervos, Pola Papageorgiou, Andreas Othonos

Year:2009

Carrier relaxation dynamics in SnxNy nanowires grown by chemical vapor deposition
Andreas Othonos, Matthew Zervos

Ultrafast dynamics of localized and delocalized polaron transitions in P3HT/PCBM blend materials: the effects of PCBM concentration
Emmanouil Lioudakis, Ioannis Alexandrou, Andreas Othonos

Ultrafast time-resolved spectroscopy of  In2O3 Nanowires
Demetra Tsokkou, Andreas Othonos, Matthew Zervos

Defect states of chemical vapor deposition grown GaN nanowires: Effects and mechanisms in the relaxation of carriers
Demetra Tsokkou, Andreas Othonos, Matthew Zervos

Synthesis of Tin Nitride SnxNy Nanowires by Chemical Vapour Deposition
Matthew Zervos, Andreas Othonos

Ultrafast time-resolved spectroscopy of Si nanocrystals embedded in SiO2 matrix Emmanouil Lioudakis, Alexandros Emporas, Andreas Othonos, Androula Galiouna Nassiopoulou

Ultrafast time-resolved spectroscopy of ZnSe nanowires: Carrier dynamics of defect-related states
Andreas Othonos, Emmanouil Lioudakis, Demetra Tsokkou, U Philipose, Harry E Ruda

Tin oxide nanowires: the influence of trap states on ultrafast carrier relaxation
Andreas Othonos, Matthew Zervos, Demetra Tsokkou

Monitoring charge exchange in P3HT-nanotube composites using optical and electrical characterisation
Ioannis Alexandrou, Emmanouil Lioudakis, Dimitrios Delaportas, CZ Zhao, Andreas Othonos

Low temperature growth of In2O3 and InN nanocrystals on Si (111) via chemical vapour deposition based on the sublimation of NH4Cl in In
Matthew Zervos, Demetra Tsokkou, Maria Pervolaraki, Andreas Othonos

Femtosecond carrier dynamics in In2O3 nanocrystals
Andreas Othonos, Matthew Zervos, Demetra Tsokkou

Influence of surface-related states on the carrier dynamics in (Ga, In) N/GaN single quantum wells
Andreas Othonos, Grigorios Itskos, DDC Bradley, MD Dawson, IM Watson

Ultrafast carrier relaxation in InN nanowires grown by reactive vapor transport
Andreas Othonos, Matthew Zervos, Maria Pervolaraki

Year:2008

Determination of critical points on silicon nanofilms: surface and quantum confinement effects
Emmanouil Lioudakis, Andreas Othonos, Androula Galiouna Nassiopoulou

Surface-related states in oxidized silicon nanocrystals enhance carrier relaxation and inhibit Auger recombination
Andreas Othonos, Emmanouil Lioudakis, Androula Galiouna Nassiopoulou

Femtosecond dynamics in single wall carbon nanotube/poly (3-hexylthiophene) composites
Emmanouil Lioudakis, Andreas Othonos, Ioannis Alexandrou

Direct observation of excitons in polymer/carbon nanotube composites at room temperature: The influence of nanotube concentration
Emmanouil Lioudakis, Constantina Kanari, Andreas Othonos, Ioannis Alexandrou

Optical properties of polyelectrolyte quantum dot multilayer films prepared using the layer by layer self-assembly method
Emmanouil Lioudakis, Elena Koupanou, Constantina Kanari, Epameinondas Leontidis, Andreas Othonos

Observation of Quantum Confinement Effects with Ultrashort Excitation in the Vicinity of Direct Critical Points in Silicon Nanofilms
Andreas Othonos, Demetra Tsokkou, Emmanouil Lioudakis

Transient photoinduced absorption in ultrathin as-grown nanocrystalline silicon films
Emmanouil Lioudakis, Andreas Othonos, Ch B Lioutas, N Vouroutzis

Time‐resolved ultrafast carrier dynamics in as‐grown nanocrystalline silicon films: the effect of film thickness and grain boundaries
Emmanouil Lioudakis, Andreas Othonos

Year:2007

Ultrafast carrier dynamics in band edge and broad deep defect emission ZnSe nanowires
Andreas Othonos, Emmanouil Lioudakis, U Philipose, Harry E Ruda

Optical properties of conjugated poly(3-hexylthiophene)/[6,6]-phenylC61-butyric acid methyl ester composites
Emmanouil Lioudakis, Andreas Othonos, Ioannis Alexandrou, Yasuhiko Hayashi

The role of surface vibrations and quantum confinement effect to the optical properties of very thin nanocrystalline silicon films Emmanouil Lioudakis, Antreas Antoniou, Andreas Othonos, Constantinos Christofides, Androula Galiouna Nassiopoulou, Ch B Lioutas, Nikolaos Frangis

Femtosecond carrier dynamics of InxGa1-xN thin films grown on GaN (0001): Effect of carrier-defect scattering
Emmanouil Lioudakis, Andreas Othonos, Eleftherios Iliopoulos, Katerina Tsagaraki, Alexandros Georgakilas

Ultrafast carrier dynamics on conjugated poly(3-hexylthiophene)/[6,6]-phenylC61-butyric acid methyl ester composites Emmanouil Lioudakis, Andreas Othonos, Ioannis Alexandrou, Yasuhiko Hayashi

Influence of grain size on ultrafast carrier dynamics in thin nanocrystalline silicon films
Emmanouil Lioudakis, Andreas Othonos, Androula G aliouna Nassiopoulou, Ch B Lioutas, N Frangis

Ultrafast transient photoinduced absorption in silicon nanocrystals: Coupling of oxygen-related states to quantized sublevels   Emmanouil Lioudakis, Andreas Othonos, Androula Galiouna Nassiopoulou

Quantum confinement and interface structure of Si nanocrystals of sizes 3–5 nm embedded in a-SiO2
Emmanouil Lioudakis, Andreas Othonos, George C Hadjisavvas, PC Kelires, Androula Galiouna Nassiopoulou

Temporal evolution of effects of ultrafast carrier dynamics in In0.33Ga0. 67N: above and near the bandgap
Emmanouil Lioudakis, Eleftherios Iliopoulos, Alexandros Georgakilas, Andreas Othonos

Year:2006

Femtosecond time-resolved study in InxGa1-xN (0001) ultrathin epilayers: Effects of high indium mole fraction and thickness of the films Emmanouil Lioudakis, Andreas Othonos, Emmanouil Dimakis, Alexandros Georgakilas

Optical and structural properties of implanted Si wafers: the effects of implantation energy and subsequent isochronal annealing temperature  Emmanouil Lioudakis, Constantinos Christofides, Andreas Othonos

Femtosecond carrier dynamics in implanted and highly annealed polycrystalline silicon
Emmanouil Lioudakis, Androula Galiouna Nassiopoulou, Andreas Othonos

Study of the annealing kinetic effect and implantation energy on phosphorus-implanted silicon wafers using spectroscopic ellipsometry Emmanouil Lioudakis, Constantinos Christofides, Andreas Othonos

Probing carrier dynamics in implanted and annealed polycrystalline silicon thin films using white light
Emmanouil Lioudakis, Andreas Othonos, Androula Galiouna Nassiopoulou

Ultrafast carrier dynamics in InxGa1-xN (0001) epilayers: Effects of high fluence excitation
Emmanouil Lioudakis, Andreas Othonos, Emmanouil Dimakis, Eleftherios Iliopoulos, Alexandros Georgakilas

Ellipsometric analysis of ion-implanted polycrystalline silicon films before and after annealing
Emmanouil Lioudakis, Androula Nassiopoulou, Andreas Othonos

Fiber Bragg Gratings - Wavelength Filters in Fibre Optics
Andreas Othonos, Kyriacos Kalli, David Pureur and Alain Mugnier

Year:2005

Prism-based ultrafast pulse-shaping apparatus
Emmanouil Lioudakis, Katerina Adamou, Andreas Othonos

Ellipsometry on optically thin palladium films on silicon-based substrate: effects of low concentration of hydrogen
Emmanouil Lioudakis, Andreas Othonos

Effects of Ge concentration, boron co‐doping, and hydrogenation on fiber Bragg grating characteristics
M Konstantaki, G Tamiolakis, A Argyris, A Othonos, A Ikiades

Year:2004

Fine art painting characterization by spectroscopic ellipsometry: preliminary measurements on varnish layers
Constantinos Christofides, B Castellon, A Othonos, Kyriaki Polikreti, C De Deyne

Year:2003

High-temperature photomodulated thermoreflectance measurements on phosphorus implanted and annealed silicon wafers   Andreas Othonos, Constantinos Christofides, Efi Loizidou

Photomodulated thermoreflectance investigation at elevated temperatures: plasma versus thermal effect
Constantinos Christofides, Andreas Othonos, Efi Loizidou

Photomodulated thermoreflectance detection of hydrogen at elevated temperatures: a detection limit
Andreas Othonos, Constantinos Christofides

Year:2002

Ultrafast dynamics in phosphorus-implanted silicon wafers: The effects of annealing
AndreasOthonos, Constantinos Christofides

Influence of temperature and modulation frequency on the thermal activation coupling term in laser photothermal theory Constantinos Christofides, Andreas Othonos, Efi Loizidou

Spatial dependence of ultrafast carrier recombination centers of phosphorus-implanted and annealed
Andreas Othonos, Constantinos Christofides

Characterization of reflectivity inversion, α-and β-phase transitions and nanostructure formation in hydrogen activated thin Pd films on silicon based substrates  Kyriacos Kalli, A Othonos, Constantinos Christofides

Year:2001

Bragg Grating in optical fibers  Chapter 9 Handbook of Advnaced Electronic and Photonic Materials and Devices
Andreas Othonos, Kyriacos Kalli

Year:2000

Optically thin palladium films on silicon-based substrates and nanostructure formation: effects of hydrogen
Andreas Othonos, Kyriacos Kalli, Din Ping Tsai

Year:1999

Bragg gratings in optical fibers: Fundamentals and Applications
Andreas Othonos, Kyriacos Kalli

Nondestructive evaluation of metal contaminated silicon wafers using radiometric measurements
Kyriacos Kalli, A Othonos, Constantinos Christofides, F Tardiff

Optical response of thin supported palladium films to hydrogen: non-destructive testing for hydrogen detection
Kyriacos Kalli, Constantinos Christofidès, Andreas  Othonos

Year:1998

Probing ultrafast carrier and phonon dynamics in semiconductors (Review Manuscript)
Andreas Othonos

Temperature-induced reflectivity changes and activation of hydrogen sensitive optically thin palladium films on silicon oxide Kyriacos Kalli, Andreas Othonos, Constantinos Christofides, Anita Lloyd Spetz, Ingemar Lundström

Photomodulated thermoreflectance detection of hydrogen gas using optically thin palladium film on silicon oxide
Kyriacos Kalli, A Othonos, Constantinos Christofides, A Spetz, I Lundström

Photothermal radiometry on nickel (pigmented aluminium oxide) selective solar absorbing surface coatings
Andreas Othonos, Marios Nestoros, D Palmerio, Constantinos Christofides, RS Bes, JP

Superimposed grating wavelength division multiplexing in Ge-doped SiO2/Si planar waveguides
Andreas Othonos, J Bismuth, M Sweeny, Antoine P Kevorkian, Jing Ming Xu

Year:1997

Fiber Bragg gratings  (Review Manuscript)
Andreas Othonos

Noncontact carrier lifetime depth profiling of ion-implanted Si using photothermal radiometry
Andreas Othonos, Alex Salnick, Andreas Mandelis, Constantinos Christofides

Photoluminescence and Raman scattering of ion implanted semiconductors. Influence of annealing
Andreas Othonos, Constantinos Christofides

Photothermal radiometric and spectroscopic measurements on silicon nitride thin films
Marios Nestoros, A Gutierrez-Llorente, A Othonos, Constantinos Christofides, JM Martinez-Duart

Diagnostics of nonradiative defects in the bulk and surface of brewster-cut Ti: sapphire laser materials using photothermal radiometry Joseph Vanniasinkam, Mahendra Munidasa, Andreas Othonos, Milan Kokta, Andreas Mandelis

Hydrogen gas detection via photothermal deflection measurement
Kyriacos Kalli, Andreas Othonos, Constantinos Christofides

Laser photothermal diagnostics of genuine and counterfeit British and United States banknotes
Andreas Othonos, Andreas Mandelis, Marios Nestoros, Constantinos Christofides

Year:1996

Non‐contacting measurements of photocarrier lifetimes in bulk‐and polycrystalline thin‐film Si photoconductive devices by photothermal radiometry Andreas Mandelis, Andreas Othonos, Constantinos Christofides, J Boussey‐Said

Multi-wavelength Raman probing of phosphorus implanted silicon wafers
Andreas Othonos, Constantinos Christofides

Distributed strain measurement based on a fiber Bragg grating and its reflection spectrum analysis
M LeBlanc, SY Huang, M Ohn, A Guemes, Andreas Othonos

Photothermal radiometric investigation of implanted silicon: The influence of dose and thermal annealing
Andreas Othonos, Constantinos Christofides, Andreas Mandelis

Phase shifted Bragg gratings formed in optical fibres by post-fabrication thermal processing
D Uttamchandani, A Othonos

Ultrafast dynamics of nonlinear absorption in low‐temperature‐grown GaAs
SD Benjamin, HS Loka, A Othonos, PWE Smith

Spectrally broadband Bragg grating mirror for an erbium-doped fiber laser
Andreas Othonos, Xavier Lee, Din Ping Tsai

Year:1995

Determining erbium distribution in optical fibers using phase-sensitive confocal microscopy
Andreas Othonos, Jeff Wheeldon, Manfred Hubert

Photoluminescence measurements on phosphorus implanted silicon: Annealing kinetics of defects
Andreas Othonos, Constantinos Christofides

High-Resolution Quadrature Photopyroelectric Spectroscopy of a-Si:H Thin Films Deposited on Silicon Wafers
Jun Shen, Andreas Mandelis, Andreas Othonos, Joseph Vanniasinkam

Narrow linewidth excimer laser for inscribing Bragg gratings in optical fibers
Andreas Othonos, Xavier Lee

Novel and improved methods of writing Bragg gratings with phase masks
Andreas Othonos, Xavier Lee

Year:1994

Superimposed multiple Bragg gratings
Andreas Othonos, X Lee, RM Measures

Large ultrafast optical nonlinearities in As-rich GaAs
SD Benjamin, A Othonos, PWE Smith

Raman spectroscopy and spreading resistance analysis of phosphorus implanted and annealed silicon
Andreas Othonos, Christofides C, Boussey-Said J, Bisson M

Raman spectroscopy using a fiber optic probe with subwavelength aperture
Tsai DP, Andreas Othonos, Moskovits M, Uttamchandani D

Determination of erbium distribution in optical fibers using confocal optical microscopy
Uttamchandani D, Andreas Othonos, Alavie AT, Hubert M

Optical spectroscopy on implanted and annealed silicon wafers: Plasma resonance wavelength
Christofides C, Andreas Othonos, Bisson M, Boussey-Said J

Year:1993

A Multiplexed Bragg Grating Fiber Laser Sensor System
Alavie AT, Karr SE, Andreas Othonos, Measures RM

Spectroscopy and analysis of radiative and nonradiative processes in Ti3+:Al2O3 crystals
Grinberg M, Mandelis A, Fjeldsted K, Andreas Othonos

Single-ended infrared photothermal radiometric measurement of quantum efficiency and metastable lifetime in solid-state laser materials: The case of ruby (Cr3+:Al2O3) Andreas Mandelis, Munidasa M, Andreas Othonos

Absolute nonradiative energy-conversion-efficiency spectra in Ti3+Al2O3 crystals measured by noncontact quadrature photopyroelectric spectroscopy Andreas Mandelis, Vanniasinkam J, Budhudu S, Andreas Othonos, Kokta M

Fiber Bragg grating laser sensor
Andreas Othonos, Alavie AT, Melle S, Karr SE, Measures RM

Year:1992

Free carrier and lattice-heating-induced changes to the reflectivity of epitaxial GeSi alloys following picosecond pulse excitation  Andreas Othonos, Van Driel HM, Young JF, Baribeau J-

Year:1991

Correlation of hot-phonon and hot-carrier kinetics in Ge on a picosecond time scale
Andreas Othonos, Van Driel HM, Young JF, Kelly PJ

Non-Equilibrium Phonon Dynamics in Ge and GeSi Alloys
Young JG, Lockwood DJ, Baribeau JM, Kelly PJ, Andreas Othonos, Driel HM

Year:1989

Fluorescence studies of multiple-photon ionization processes: Four- and five-photon ionization of Sr at wavelengths of 558-590 nm Haugen HK, Andreas Othonos

Hot-carrier dynamics in Ge on single picosecond timescales: Comparing Raman and reflectivity experiments with a self-consistent kinetic model  Andreas Othonos, Van Driel H, Young JF, Kelly PJ

Year:1988

Fluorescence studies of multiphoton ionization of Sr: Production of excited ionic states
Haugen HK, Andreas Othonos