Department of Optoelectronics
Head of department prof. Gintaras Valušis
phone +370 5 2649211
Department is active in both fundamental and applied research in the fields of semiconducting materials physics and technology, optoelectronic device technology and applications. Modern epitaxial growth equipment available at the Department allows us to produce semiconductor structures from novel materials such as group III bismides, and fabricate from these structures optoelectronic components for infrared and terahertz spectral ranges. Researchers of the Department have complex experimental facilities for optical characterization of different materials; they have developed numerous unique terahertz spectroscopy and imaging techniques.
Laboratories:
Equipment
Laboratory of Ultrafast optoelectronics
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- Tunable wavelength femtosecond duration pulsed optical parametric generator (ORPHEUS, Light Conversion);
- Ti:sapphire femtosecond laser (MIRA, Coherent);
- Ti:sapphire femtosecond laser (Femtolaser);
- Yb:KGW femtosecond laser oscillator (Light Conversion);
- Er:fiber femtosecond laser (Toptica);
- THz time-domain spectroscopy system;
- Optical pump – THz probe system.
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Optoelectronic Technology Laboratory |
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- Veeco GENxplor molecular beam epitaxy system is designed for the epitaxial growth of high quality III-V semiconductor compounds with very high deposition control accuracy on substrates up to 3’’ in diameter. The system is equipped with In, Ga, Al, Bi metallic sources, As, Sb crackers and Si, Be and Te for doping.
- SVT “III-V MBE System Model C-V-2“ for the growth of III-V semiconducting layers and quantum structures. The device is equipped with In, Ga, Al, Bi metallic sources, As bulk and cracker and Si and Be for doping.
- Integrated Vacuum Deposition System Model TFDS- 870 – intended for metal contacts deposition. Presently is possible to deposit Au, Ge, Ti, Ni, Al, AuGe one or multilayer contacts.
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Semiconductor Optics Laboratory |
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- Modulation spectroscopy setup (photo- and electroreflectance, SPV, l‑modulation; spectral range 0.5 – 4 eV).
- Low-temperature optical spectroscopy setup (photo- and electroreflectance, PL, PLE, l‑modulation; spectral range 0.56 – 5 eV, temperature range 4 – 300 K).
- Spectroscopic ellipsometry setup (RC2 Woolam and RAE ellipsometers; spectral range 0.4 – 6.2 eV).
- Setup of polarization modulation and magnetooptics (PEM, B ~ 3 T).
- FTIR spectroscopy setup (Vertex 70v FT, spectral range 0.01 – 0.7 eV).
- Light scattering setup (1.5 – 4 eV).
- Shimadzu UV-3600 spectrophotometer with integrating sphere.
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Terahertz photonics laboratory |
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- Edinburgh Instruments THz laser FIRL-100;
- VDI frequency multiplier chains for 100/200/300/600 GHz;
- Thermo Scientific Fourier transform infrared spectrometer Nicolet 8700;
- Custom‐designed vacuum Fourier transform infrared spectrometer;
- Toptica Terascan 780 system;
- Custom‐designed Spectroscopic THz imaging system;
- Janis Research closed cycle LHe cryostat with optical windows and electrical connectors;
- Custom‐designed LN2 cryostat with optical windows and electrical connectors;
- Probes station and laboratory equipment for I/V and C/V measurements under low- and high-voltage bias in dc-, ac-, and pulse regime.
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projects
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European Space Agency (ESA) project „Bismides for InfraRed photoDetector applications“(BIRD)
The project is focused on the development of technology of novel semiconductor compounds – dilute bismides. Strong influence of Bi atoms incorporated into various A3B5 (GaAs, GaInAs, and InAs) semiconductors on their electronic band structure enables growth of bismides on different substrates materials (GaAs, InP, and GaSb) with much narrower bandgaps photosensitive at near- and mid-infrared wavelengths. The main objectives of the project are to verify the suitability of optimized bulk bismide layers technologies for two applications: i) as a materials with ~1 eV energy bandgap for highly efficient multijunction (3J or 4J) photovoltaic solar cells, and ii) as substrates for photodiodes and focal-plane-arrays sensitive at infrared wavelengths up to 4 mm.
Project duration 2016 01 18-2018 01 17
The Prime Contractor is State Research Institute Center for Physical Sciences and Technology (FTMC)
The project budget is 199 135 EURo
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FP7 Marie Curie ITN project NOTEDEV (Novel terahertz devices)
NOTEDEV (Novel Type of Terahertz Devices) is a Marie Curie Initial Training Network that aims to tackle the terahertz gap. A consortium of leading European Universities and industrial partners are collaborating to conduct research and to train young physicists and device engineers in this field. Terahertz sources and detectors have powerful potential for applications in biology, medicine, security and non-destructive testing. Some devices are currently in operation, but to benefit from the full potential of Terahertz frequencies there is an urgent need for developments in efficient, cheap, reliable, scalable and portable THz devices. In the Center for Physical Sciences and Technology, development of semiconducting THz components for Time-Domain Spectroscopy (TDS) systems activated by 1.55 μm femtosecond (fs) laser pulses is in progress. These fs lasers would ensure a cost-effective and compact THz-TDS system.
Project duration 2014 10 01-2017 09 30
The Prime Contractor is Durham university, FTMC group leader is A. Krotkus
The project budget is 185 000 EUR
- Nonpolar ZnO thin films: Growth-related structural and optical properties (Mutual Funds Taiwan – Latvia – Lithuania, 2014-2016)
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Project LAT-04/2016 (3500-P330) „Compact integrated THz components and spectroscopic THz imaging systems – KITKAS“, LAT-04/2016 (Research Council of Lithuania, 2016-2018). Coordinator – Irmantas Kašalynas
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Project MIP-71/2015 „Bismuth quantum dots in GaAs matrix – BiNano“, (Research Council of Lithuania, 2015-2017). Coordinator – Renata Butkutė (Dalius Seliuta)
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Project MIP-14281 „Active metamaterial investigation and application for terahertz switching and modulation“ (Research Council of Lithuania, 2014 – 2017) Coordinator – Žilvinas Kancleris (Dalius Seliuta).
Most important publications
- Abramova, Viktoriia; Lukin, Vladimir; Abramov, Sergey; Kryvenko, Sergii; Lech, Piotr; Okarma, Krzysztof. A fast and accurate prediction of distortions in DCT-based lossy image compression // Electronics. eISSN 2079-9292. 2023, vol. 12, iss. 11, art. no. 2347, p. 1-24.
- Vosylius, Žygimantas; Antonovič, Dariuš; Novičkovas, Algirdas; Gaubas, Eugenijus; Tamošiūnas, Vincas. Rational selection of light sources for LED-based solar simulators // Solar energy. ISSN 0038-092X. 2023, vol. 265, art. no. 112064, p. 1-8.
- Kondrotas, Rokas; Pakštas, Vidas; Franckevičius, Marius; Suchodolskis, Artūras; Tumėnas, Saulius; Jašinskas, Vidmantas; Juškėnas, Remigijus; Krotkus, Arūnas; Muska, Katri; Kauk-Kuusik, Marit. Band gap engineering by cationic substitution in Sn(Zr1−xTix)Se3 alloy for bottom sub-cell application in solar cells // Journal of materials chemistry A. ISSN 2050-7488. 2023, vol. 11, iss. 48, p. 26488-26498.
- Rutkauskas, Danielis; Auksorius, Egidijus. Time-domain full-field optical coherence tomography with digital confocal line scanning //Optics letters. ISSN 0146-9592. 2023, vol. 48, iss. 13, p. 3539-3542.
- Čižas, Vladislovas; Alexeeva, Natalia; Alexeev, Kirill; Valušis, Gintaras. Coexistence of bloch and parametric mechanisms of high-frequency gain in doped superlattices//Nanomaterials. eISSN 2079-4991. 2023, vol.13, iss.13, art. no. 1993, p. 1-17.
- Lukša, Algimantas; Bukauskas, Virginijus; Nargelienė, Viktorija; Treideris, Marius; Talaikis, Martynas; Selskis, Algirdas; Suchodolskis, Artūras; Šetkus, Arūnas. Influence of growth time and temperature on optical characteristics and surface wetting in nano-crystalline graphene deposited by PECVD directly on silicon dioxide//Crystals. eISSN 2073-4352. 2023, vol. 13, iss. 8, art. no. 1243, p. 1-13.
- Nedzinskas, Ramūnas; Suchodolskis, Artūras; Trinkler, Laima; Krieke, Guna; Yao, Wan-Tung; Chang, Chia-Cheng; Chang, Liuwen; Chou, Mitch Ming-Chi. Optical characterization of high-quality ZnO (0002) / Cu (111) epilayers grown by electrodeposition//Optical materials. ISSN 0925-3467. 2023, vol. 138, art. no. 113650, p. 1-9.
- Trinkler, Laima; Dai, Dajin; Chang, Liuwen; Chou, Mitch Ming-Chi; Wu, Tzu-Ying; Gabrusenoks, Jevgenijs; Nilova, Dace; Ruska, Rihards; Berzina, Baiba; Nedzinskas, Ramunas. Luminescence properties of epitaxial Cu2O thin films electrodeposited on metallic substrates and Cu2O single crystals//Materials. eISSN 1996-1944. 2023, vol. 16, iss. 12, art. no. 4349, p. 1-21.
- Urbonis, D.; Ragulis, Paulius; Šlekas, Gediminas; Kamarauskas, Andrius; Seliuta, Dalius; Kancleris, Žilvinas Andrius. Symmetric and asymmetric Fano resonances in a broken axial symmetry metasurface of split ring resonators//Journal of applied physics. ISSN 0021-8979. 2023, vol. 134, iss. 13, art. no. 133102, p. 1-7.
- Krotkus, Arūnas; Nevinskas, Ignas; Norkus, Ričardas. Semiconductor characterization by terahertz excitation spectroscopy//Materials. eISSN 1996-1944. 2023, vol. 16, iss. 7, art. no. 2859, p. 1-25.
- Janonis, Vytautas; Kacperski, Jacek; Selskis, Algirdas; Balagula, Roman; Prystawko, Pawel; Kašalynas, Irmantas. Directive and coherent thermal emission of hybrid surface plasmon-phonon polaritons in n-GaN gratings of linear and radial shapes//Optical materials express. eISSN 2159-3930. 2023, vol. 13, iss. 9, p. 2662-2673.
- Ivaškevičiūtė-Povilauskienė, Rusnė; Čižas, Vladislovas; Nacius, Ernestas; Grigelionis, Ignas; Redeckas, Karolis; Bernatonis, Matas; Orlovas, Sergejus; Valušis, Gintaras; Minkevičius, Linas. Flexible terahertz optics: light beam profile engineering via C-shaped metallic metasurface // Frontiers in physics. ISSN 2296-424X. 2023, vol. 11, art. no. 1196726, p. 1-9.
- Lujanienė, Galina; Novikau, Raman; Leščinskytė, Agnė; Mažeika, Kęstutis; Pakštas, Vidas; Tumėnas, Saulius; Skapas, Martynas; Šilobritienė, Beata. Prussian blue composites for Cs adsorption – modification of the method and modelling of the adsorption processes // Journal of radioanalytical and nuclear chemistry. ISSN 0236-5731. 2023, vol. 332, p. 1033-1045.
- Grigelionis, Ignas; Čižas, Vladislovas; Karaliūnas, Mindaugas; Jakštas, Vytautas; Ikamas, Kęstutis; Urbanovič, Andže; Treideris, Marius; Bičiūnas, Andrius; Jokubauskis, Domas; Butkutė, Renata; Minkevičius, Linas. Narrowband thermal terahertz emission from homoepitaxial GaAs structures coupled with Ti/Au metasurface // Sensors. eISSN 1424-8220. 2023, vol. 23, iss. 10, art. no. 4600, p. 1-11.
- Balagula, Roman; Subačius, Liudvikas; Prystawko, Paweł; Kašalynas, Irmantas. Electro-optical modulation of terahertz beam by drifting space-charge domains in n-GaN epilayers // Journal of applied physics. ISSN 0021-8979. 2023, vol. 133, iss. 20, art. no. 205702, p. 1-8.
- Ayyagari, Surya Revanth; Indrišiūnas, Simonas; Kašalynas, Irmantas. Hybrid multiphase fresnel lenses on silicon wafers for terahertz frequencies // IEEE transactions on terahertz science and technology. ISSN 2156-342X. 2023, vol. 13, iss. 3, p. 231-236.
- Krotkus, Arūnas; Nevinskas, Ignas; Norkus, Ričardas; Geižutis, Andrejus; Strazdienė, Viktorija; Pačebutas, Vaidas; Paulauskas, Tadas. Terahertz photocurrent spectrum analysis of AlGaAs/GaAs/GaAsBi multi-junction solar cells // Journal of physics D: Applied physics. ISSN 0022-3727. 2023, vol. 56, iss. 35, art.no. 355109, p. 1-8.
- Markauskas, Edgaras; Zubauskas, Laimis; Naujokaitis, Arnas; Čechavičius, Bronislovas; Talaikis, Martynas; Niaura, Gediminas; Čaplovičová, Mária; Vretenár, Viliam; Paulauskas, Tadas. GaAs ablation with ultrashort laser pulses in ambient air and water environments // Journal of applied physics. ISSN 0021-8979. 2023, vol. 133, iss. 23, art.no. 235102, p. 1-9.
- Molinara, Mario; Cancelliere, Rocco; Di Tinno, Alessio; Ferrigno, Luigi; Shuba, Mikhail; Kuzhir, Polina; Maffucci, Antonio; Micheli, Laura. A deep learning approach to organic pollutants classification using voltammetry // Sensors. ISSN 1424-8220. 2022, vol. 22, iss. 20, art. no. 8032, p. 1-16.
- Trinkler, Laima; Aulika, Ilze; Krieke, Guna; Nilova, Dace; Ruska, Rihards; Butikova, Jelena; Berzina, Baiba; Chou, Mitch Ming-Chi; Chang, Liuwen; Wen, Meng-Chieh; Yan, Tao; Nedzinskas, Ramūnas. Characterization of wurtzite Zn1−xMgxO epilayers grown on ScAlMgO4 substrate by methods of optical spectroscopy // Journal of alloys and compounds. ISSN 0925-8388. 2022, vol. 912, art. no. 165178, p. 1-10.
- Lukša, Algimantas; Astachov, Vladimir; Balakauskas, Saulius; Bukauskas, Virginijus; Kamarauskas, Mindaugas; Suchodolskis, Artūras; Treideris, Marius; Talaikis, Martynas; Šetkus, Arūnas. Changes in electrical conductance in the limited area of microcrystalline graphene due to the spatial proximity of water droplet // Surfaces and interfaces. ISSN 2468-0230. 2023, vol. 36, art. no. 102508, p. 1-9.
- Krautmann, R.; Spalatu, N.; Josepson, R.; Nedzinskas, Ramūnas; Kondrotas, Rokas; Gržibovskis, R.; Vembris, A.; Krunks, M.; Oja Acik, I. Low processing temperatures explored in Sb2S3 solar cells by close-spaced sublimation and analysis of bulk and interface related defects // Solar energy materials and solar cells. ISSN 0927-0248. 2023, vol. 251, art. no. 112139, p. 1-9.
- Armalytė, Simona; Glemža, Justinas; Jonkus, Vytautas; Pralgauskaitė, Sandra; Matukas, Jonas; Pūkienė, Simona; Zelioli, Andrea; Dudutienė, Evelina; Naujokaitis, Arnas; Bičiūnas, Andrius; Čechavičius, Bronislovas; Butkutė, Renata. Low-frequency noise characteristics of (Al, Ga)As and Ga(As, Bi) quantum well structures for NIR laser diodes // Sensors. eISSN 1424-8220. 2023, vol. 23, iss. 4, art. no. 2282, p. 1-13.
- Leitenstorfer, Alfred; Moskalenko, Andrey S; Kampfrath, Tobias; Kono, Junichiro; Castro-Camus, Enrique; Peng, Kun; Qureshi, Naser; Turchinovich, Dmitry; Tanaka, Koichiro; Markelz, Andrea G; Havenith, Martina; Hough, Cameron; Joyce, Hannah J; Padilla, Willie J; Zhou, Binbin; Kim, Ki-Yong; Zhang, Xi-Cheng; Jepsen, Peter Uhd; Dhillon, Sukhdeep; Vitiello, Miriam; Linfield, Edmund; Davies, A Giles; Hoffmann, Matthias C; Lewis, Roger; Tonouchi, Masayoshi; Klarskov, Pernille; Seifert, Tom S; Gerasimenko, Yaroslav A; Mihailovic, Dragan; Huber, Rupert; Boland, Jessica L; Mitrofanov, Oleg; Dean, Paul; Ellison, Brian N; Huggard, Peter G; Rea, Simon P; Walker, Christopher; Leisawitz, David T; Gao, Jian Rong; Li, Chong; Chen, Qin; Valušis, Gintaras; Wallace, Vincent P; Pickwell-MacPherson, Emma; Shang, Xiaobang; Hesler, Jeffrey; Ridler, Nick; Renaud, Cyril C; Kallfass, Ingmar; Nagatsuma, Tadao; Zeitler, J Axel; Arnone, Don; Johnston, Michael B; Cunningham, John. The 2023 terahertz science and technology roadmap // Journal of physics D: Applied physics. ISSN 0022-3727. 2023, vol. 56, iss. 22, art. no. 223001, p. 1-66.
- Uslu, Mehmet Ender; Kondrotas, Rokas; Nedzinskas, Ramūnas; Volobujeva, Olga; Timmo, Kristi; Kauk-Kuusik, Marit; Krustok, Jüri; Grossberg, Maarja. Study of the optical properties of Sb2(Se1-xSx)3 (x = 0–1) solid solutions // Materials science in semiconductor processing. BV. ISSN 1369-8001. 2022, vol. 144, art. no. 106571, p. 1-6.
- Šermukšnis, Emilis; Jorudas, Justinas; Šimukovič, Artūr; Kovalevskij, Vitalij; Kašalynas, Irmantas. Self-heating of annealed Ti/Al/Ni/Au contacts to two-dimensional electron gas in AlGaN/GaN heterostructures // Applied sciences. eISSN 2076-3417. 2022, vol. 12, iss. 21, art. no. 11079, p. 1-17.
- Krustok, Jüri; Kondrotas, Rokas; Nedzinskas, Ramūnas; Timmo, Kristi; Kaupmees, Reelika; Mikli, Valdek; Grossberg, Maarja. Identification of excitons and biexcitons in Sb2Se3 under high photoluminescence excitation density // Advanced optical materials. ISSN 2195-1071. 2021, vol. 9, iss. 10, art. no. 2100107, p. 1-7.
- Tamošiūnas, Vincas; Minkevičius, Linas; Bučius, Ignotas; Jokubauskis, Domas; Redeckas, Karolis; Valušis, Gintaras. Design and performance of extraordinary low-cost compact terahertz imaging system based on electronic components and paraffin wax optics // Sensors. eISSN 1424-8220. 2022, vol. 22, iss. 21, art. no. 8485, p. 1-11.
- Ivaškevičiūtė-Povilauskienė, Rusnė; Kizevičius, Paulius; Nacius, Ernestas; Jokubauskis, Domas; Ikamas, Kęstutis; Lisauskas, Alvydas; Alexeeva, Natalia; Matulaitienė, Ieva; Jukna, Vytautas; Orlovas, Sergejus; Minkevičius, Linas; Valušis, Gintaras. Terahertz structured light: nonparaxial Airy imaging using silicon diffractive optics // Light: science & applications. eISSN 2047-7538. 2022, vol. 11, art. no. 326, p. 1-13.
- Jorudas, Justinas; Pashnev, Daniil; Kašalynas, Irmantas; Ignatjev, Ilja; Niaura, Gediminas; Selskis, Algirdas; Astachov, Vladimir; Alexeeva, Natalia. Green removal of DUV-polarity-modified PMMA for wet transfer of CVD graphene // Nanomaterials. eISSN 2079-4991. 2022, vol. 12, iss. 22, art. no. 4017, p. 1-17.
- Auksorius, Egidijus; Borycki, Dawid; Wegrzyn, Piotr; Sikorski, Bartosz L.; Lizewski, Kamil; Žičkienė, Ieva; Rapolu, Mounika; Adomavičius, Karolis; Tomczewski, Slawomir; Wojtkowski, Maciej. Spatio-temporal optical coherence tomography provides full thickness imaging of the chorioretinal complex // iScience. ISSN 2589-0042. 2022, vol. 25, iss. 12, art. no. 105513, p. 1-21.
- Lujanienė, Galina; Novikau, Raman; Joel, Edith Flora; Karalevičiūtė, Karolina; Šemčuk, Sergej; Mažeika, Kęstutis; Talaikis, Martynas; Pakštas, Vidas; Tumėnas, Saulius; Mažeika, Jonas; Jokšas, Kęstutis. Preparation of graphene oxide-maghemite-chitosan composites for the adsorption of europium Ions from aqueous solutions // Molecules. ISSN 1420-3049. 2022, vol. 27, iss. 22, art. no. 8035, p. 1-20.
- Kondrotas, Rokas; Nedzinskas, Ramūnas; Krustok, Juri; Grossberg, Maarja; Talaikis, Martynas; Tumėnas, Saulius; Suchodolskis, Artūras; Žaltauskas, Raimundas; Sereika, Raimundas. Photoreflectance and photoluminescence study of antimony selenide crystals // ACS applied energy materials. ISSN 2574-0962. 2022, vol. 5, iss. 12, p. 14769-14778.
- Čižas, Vladislovas; Subačius, Liudvikas; Alexeeva, Natalia; Seliuta, Dalius; Hyart, Timo; Köhler, Klaus; Alexeev, Kirill; Valušis, Gintaras. Dissipative parametric gain in a GaAs / AlGaAs superlattice // Physical review letters. ISSN 0031-9007. 2022, vol. 128, iss. 23, art. no. 236802, p. 1-7.
- Pashnev, Daniil; Korotieiev, Vadym; Jorudas, Justinas; Urbanovič, Andžej; Prystawko, Pawel; Janonis, Vytautas; Kašalynas, Irmantas. Investigation of electron effective mass in AlGaN/GaN heterostructures by THz spectroscopy of drude conductivity // IEEE transactions on electron devices. ISSN 0018-9383. 2022, vol. 69, no. 7, p. 3636-3640.
- Ščajev, Patrik; Mekys, Algirdas; Subačius, Liudvikas; Stanionytė, Sandra; Kuciauskas, Darius; Lynn, Kelvin G.; Swain, Santosh K. Impact of dopant-induced band tails on optical spectra, charge carrier transport, and dynamics in single-crystal CdTe // Scientific reports. eISSN 2045-2322. 2022, vol. 12, iss. 1, art. no. 12851, p. 1-10.
- Stanionytė, Sandra; Malinauskas, Tadas; Niaura, Gediminas; Skapas, Martynas; Devenson, Jan; Krotkus, Arūnas. The crystalline structure of thin bismuth layers grown on silicon (111) substrates // Materials. eISSN 1996-1944. 2022, vol. 15, iss. 14, art. no. 4847, p. 1-12.
- Nevinskas, Ignas; Stanionytė, Sandra; Devenson, Jan; Krotkus, Arūnas. Direct bandgap dependence of bismuth films on their thickness // Journal of applied physics. ISSN 0021-8979. 2022, vol. 132, iss. 5, art. no. 055301, p. 1-6.
- Rehman, Hamza; Golubewa, Lena; Basharin, Alexey; Urbanovič, Andžej; Lähderanta, Erkki; Soboleva, Ekaterina; Matulaitienė, Ieva; Jankunec, Marija; Svirko, Yuri; Kuzhir, Polina. Fragmented graphene synthesized on dielectric substrate for THz applications // Nanotechnology. ISSN 0957-4484. 2022, vol. 33, iss. 39, art. no. 395703, p. 1-25.
- Apostolakis, A.; Balanov, A. G.; Kusmartsev, F. V.; Alexeev, Kirill. Beyond the ordinary acoustoelectric effect: Superluminal phenomena in the acoustic realm and phonon-mediated Bloch gain // Physical review B. ISSN 2469-9950. 2022, vol. 106, iss. 1, art. no. 014312, p. 1-22.
- Balagula, Roman; Subačius, Liudvikas; Jorudas, Justinas; Prystawko, Paweł; Grabowski, Mikołaj; Leszczyński, Michał; Kašalynas, Irmantas. Space-charge domains in n -type GaN epilayers under pulsed electric field // Applied physics letters. ISSN 0003-6951. 2022, vol. 121, iss. 10, art. no. 102101, p. 1-6.
- Kamarauskas, Andrius; Seliuta, Dalius; Šlekas, Gediminas; Sadauskas, Modestas; Kvietkauskas, Evaldas; Trusovas, Romualdas; Ratautas, Karolis; Kancleris, Žilvinas Andrius. Experimental demonstration of multiple Fano resonances in a mirrored array of split-ring resonators on a thick substrate // Scientific reports. eISSN 2045-2322. 2022, vol. 12, art. no. 15846, p. 1-9.
- Paulauskas, Tadas; Pačebutas, Vaidas; Geižutis, Andrejus; Kamarauskas, Mindaugas; Drazdys, Mantas; Rudzikas, Matas; Kondrotas, Rokas; Naujokaitis, Arnas; Nevinskas, Ignas; Šebeka, Benjaminas; Strazdienė, Viktorija; Krotkus, Arūnas. Performance analysis of GaAsBi/InGaAs heterostructure for III-V multi-junction solar cells // Solar energy materials and solar cells. ISSN 0927-0248. 2022, vol. 248, art. no. 112013, p. 1-8.
- Pačebutas, Vaidas; Karpus, Vytautas; Geižutis, Andrejus; Kamarauskas, Mindaugas; Selskis, Algirdas; Krotkus, Arūnas. Reduction of optical transition energy in composite GaInAsBi quantum wells. Infrared physics and technology. ISSN 1350-4495. 2022, vol. 121, art. n. 104002, p. 1-5.
- Bychanok, D.; Padrez, Yaraslau; Liubetski, N.; Arlouski, A.; Kushniarou, U.; Korobov, I.; Halimski, I.; Kulahava, T.; Demidenko, M.; Urbanovič, Andžej; Macutkevič, Jan; Kuzhir, P.. Window tinting films for microwave absorption and terahertz applications. Journal of applied physics. ISSN 0021-8979. 2022, vol. 131, iss. 2, art. no. 025110, p. 1-7.
- Ivaškevičiūtė-Povilauskienė, Rusnė; Paddubskaya, A.; Seliuta, Dalius; Jokubauskis, Domas; Minkevičius, Linas; Urbanovič, Andžej; Matulaitienė, Ieva; Mikoliūnaitė, Lina; Kuzhir, P.; Valušis, Gintaras. Advantages of optical modulation in terahertz imaging for study of graphene layers. Journal of applied physics. ISSN 0021-8979. 2022, vol. 131, iss. 3, art. no. 033101, p. 1-9.
- Lamberti, Patrizia; La Mura, Monica; Tucci, Vincenzo; Nkyalu, Erick; Khan, Ali; Yakovleva, Marina; Valynets, Nadzeya; Paddubskaya, Alesia; Saushin, Aleksandr; Vanyukov, Viatcheslav; Baah, Marian; Urbanovič, Andžej; Svirko, Yuri; Kuzhir, Polina. The performance of graphene-enhanced THz grating: impact of the gold layer imperfectness. Materials. eISSN 1996-1944. 2022, vol. 15, iss. 3, art. no. 786, p. 1-13.
- Jorudas, Justinas; Prystawko, Paweł; Šimukovič, Artūr; Aleksiejūnas, Ramūnas; Mickevičius, Jūras; Kryśko, Marcin; Michałowski, Paweł Piotr; Kašalynas, Irmantas. Development of quaternary InAlGaN barrier layer for high electron mobility transistor structures. Materials. eISSN 1996-1944. 2022, vol. 15, iss. 3, art. no. 1118, p. 1-11.
- Auksorius, Egidijus; Borycki, Dawid; Wegrzyn, Piotr; Žičkienė, Ieva; Adomavičius, Karolis; Sikorski, Bartosz L.; Wojtkowski, Maciej. Multimode fiber as a tool to reduce cross talk in Fourier-domain full-field optical coherence tomography. Optics letters. ISSN 0146-9592. 2022, vol. 47, iss. 4, p. 838-841.
- Balagula, Roman; Subačius, Liudvikas; Jorudas, Justinas; Janonis, Vytautas; Prystawko, Pawel; Grabowski, Mikolaj; Kašalynas, Irmantas. High-frequency and high-power performance of n-type GaN epilayers with low electron density grown on native substrate. Materials. eISSN 1996-1944. 2022, vol. 15, iss. 6, art. no. 2066, p. 1-12.
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