Ihor Pavlov

E-mail
ipavlov@metu.edu.tr
Department
Department of Physics
3D-graphene-laser patterned p-type silicon Schottky diode
Orhan, Elif Oz; Efil, Esra; Bayram, Ozkan; Kaymak, Nuriye; Berberoğlu, Halil; Candemir, Ozun; Pavlov, Ihor; Ocak, Sema Bilge (Elsevier BV, 2021-01-01)
© 2020 Elsevier LtdThe influence of the laser patterning (LP) process on the quality of graphene (Gr) film and Schottky diode characteristics was researched in this study. First of all, p-type silicon (Si) was patterned by...
High power microsecond fiber laser at 1.5 μm
Pavlova, Svitlana; Yagci, M. Emre; Eken, S. Koray; Tunckol, Ersan; Pavlov, Ihor (The Optical Society, 2020-06-08)
© 2020 Optical Society of America.In this work, we demonstrate a single frequency, high power fiber-laser system, operating at 1550 nm, generating controllable rectangular-shape μs pulses. In order to control the amplified...
High power microsecond fiber laser at 1.5 mu m
Pavlova, Svitlana; Yagci, M. Emre; Eken, S. Koray; Tunckol, Ersan; Pavlov, Ihor (The Optical Society, 2020-06-01)
In this work, we demonstrate a single frequency, high power fiber-laser system, operating at 1550 nm, generating controllable rectangular-shape mu s pulses. In order to control the amplified spontaneous emission content, a...
Azimuthal and polar anchoring energies of aligning layers structured by nonlinear laser lithography
Pavlov, Ihor; Candemir, O.; Rybak, A.; Dobrovolskiy, A.; Kadan, V.; Blonskiy, I.; Lytvyn, P.; Korchovyi, A.; Tytarenko, P.; Kazantseva, Z.; Gvozdovskyy, I. (Informa UK Limited, 2020-01-01)
© 2020, © 2020 Informa UK Limited, trading as Taylor & Francis Group.In spite of the fact that there are different techniques in the creation of the high-quality liquid crystals (LCs) alignment by means of various surfaces...
Upconversion fluorescence assisted visualization of femtosecond laser filaments in Er-doped chalcohalide 65GeS(2)-25Ga(2)S(3)-10CsCl glass
Blonskyi, Ivan; Kadan, Viktor; Shpotyuk, Oleh; Calvez, Laurent; Pavlov, Ihor; Pavlova, Svitlana; Dmytruk, Andriy; Rybak, Andriy; Korenyuk, Petro (Elsevier BV, 2019-11-01)
Upconversion fluorescence of Er3+ ions (1 at. %) excited with femtosecond laser pulses of different repetition frequencies (seed laser 76 MHz, and laser amplifier 1 kHz) is studied in the Er-doped chalcohalide glass of 65G...
Liquid crystal alignment on the patterns produced by nonlinear laser lithography
Pavlov, Ihor; Rybak, Andriy; Dobrovolskiy, Andriy; Kazantseva, Zoya; Bek, Alpan; Candemir, Ozun; Gvozdovskyy, Igor (2019-06-01)
Liquid crystal (LC) based devices such as displays, spatial light modulators (SLM) and different switchable phase masks constitute the main part of the graphic information display and light control. Mechanical rubbing and ...
ULTRASHORT LIGHT PULSES IN TRANSPARENT SOLIDS: PROPAGATION PECULIARITIES AND PRACTICAL APPLICATIONS
Blonskyi, I.; Kadan, V. M.; Pavlova, S.; Pavlov, Ihor; Shpotyuk, O.; Khasanov, O. K. (2019-01-01)
The peculiarities of the femtosecond filamentation in Kerr media has been studied using a set of time-resoling experimental techniques. These include the temporal self-compression of a laser pulse in the filamentation mode...
Generation of 2-mu J 410-fs pulses from a single-mode chirped-pulse fiber laser operating at 1550 nm
Pavlova, Svitlana; Rezaei, Hossein; Pavlov, Ihor; Kalaycioglu, Hamit; Ilday, Fatih Omer (Springer Science and Business Media LLC, 2018-10-01)
We report on a simple, robust, femtosecond chirped-pulse-amplification system, based on Er-and Er-Yb-doped fibers, operating at a central wavelength of 1555 nm. The entire system is constructed from commercially available ...
High-quality alignment of nematic liquid crystals using periodic nanostructures created by nonlinear laser lithography
Pavlov, Ihor; Rybak, A. S.; Dobrovolskiy, A. M.; Kadan, V. M.; Blonskiy, I. V.; Kazantseva, Z. I.; Gvozdovskyy, I. A. (2018-10-01)
It is well known that today two main and well studied methods for alignment of liquid crystals has been used, namely: rubbing and photoalignment technologies, that lead to the change of anisotropic properties of aligning l...
Spatio-temporal dynamics of femtosecond laser pulses at 1550 nm wavelength in crystal silicon
Kadan, Viktor; Pavlova, Svitlana; Pavlov, Ihor; Rezaei, Hossein; Ilday, Omer; Blonskyi, Ivan (Springer Science and Business Media LLC, 2018-08-01)
Spatio-temporal transformation of the femtosecond laser pulses at 1550 nm wavelength in c-Si is observed using the methods of time-resolved microscopy. The temporal dynamics of the pulse manifests itself both in widening o...
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