Femtosecond filamentation in chalcogenide glasses limited by two-photon absorption

I Blonskyi, V Kadan, O Shpotyuk, M Iovu, I Pavlov - Optical Materials, 2010 - Elsevier
Filamentation of 800nm femtosecond laser pulses in the conditions of strong two-photon
absorption was first directly observed in As4Ge30S66 chalcogenide glass, this effect being …

Single-pulse femtosecond laser fabrication of concave microlens-and micromirror arrays in chalcohalide glass

V Kadan, I Blonskyi, Y Shynkarenko, A Rybak… - Optics & Laser …, 2017 - Elsevier
The diffraction-limited plano-concave microlens-and micromirror arrays were produced in
chalcohalide glass of 65GeS 2-25Ga 2 S 3-10CsCl composition transparent from∼ 0.5 to 11 …

Filament-induced self-written waveguides in glassy As4Ge30S66

I Blonskyi, V Kadan, O Shpotyuk, M Iovu, P Korenyuk… - Applied Physics B, 2011 - Springer
The filamentation of femtosecond laser pulses and filament-induced self-writing of a
permanent waveguide are observed in As 4 Ge 30 S 66 chalcogenide glass. The radial …

Uniform nano-ripples on the sidewall of silicon carbide micro-hole fabricated by femtosecond laser irradiation and acid etching

V Khuat, T Chen, B Gao, J Si, Y Ma, X Hou - Applied Physics Letters, 2014 - pubs.aip.org
Uniform nano-ripples were observed on the sidewall of micro-holes in silicon carbide
fabricated by 800-nm femtosecond laser and chemical selective etching. The morphology of …

Time-resolved microscopy of femtosecond laser filaments in fused quartz

V Kadan, I Blonskyi, I Pavlov - Optics Communications, 2022 - Elsevier
Detailed picture of continuous shape evolution of femtosecond laser pulse has been
recorded directly in the process of filament formation in fused silica using time-resolved …

Periodic femtosecond filamentation in birefringent media

I Blonskyi, V Kadan, Y Shynkarenko, O Yarusevych… - Applied Physics B, 2015 - Springer
We report on the experimental observation of periodic modulation of the axial luminescence
intensity along the femtosecond filament track in sapphire and crystal quartz. The physical …

Multi-frame observation of a single femtosecond laser pulse propagation using an echelon and optical polarigraphy technique

L Yan, X Wang, J Si, P He, F Chen… - IEEE Photonics …, 2013 - ieeexplore.ieee.org
We developed a multiframe observation method of femtosecond laser pulse propagating in
transparent medium based on optical polarigraphy technique. An echelon was introduced …

3D reconstruction of the complex dielectric function of glass during femtosecond laser micro-fabrication

AV Turchin, M Dubov, JAR Williams - Optical and quantum electronics, 2011 - Springer
We report on a new technique to reconstruct the 3D dielectric function change in transparent
dielectric materials and the application of the technique for on-line monitoring of refractive …

Optically induced anisotropy of surface plasmons in spherical metal nanoparticles

I Dmitruk, I Blonskiy, I Pavlov, O Yeshchenko… - Physical Review B …, 2010 - APS
Red shift and splitting of surface plasmon band in absorption spectra of copper
nanoparticles incorporated in silica matrix have been observed under irradiation by intense …

Dynamic lenses in femtosecond filament

EO Smetanina, VM Kadan, IV Blonskyi, VP Kandidov - Applied Physics B, 2014 - Springer
We study, both experimentally and numerically, the variations of the refractive index at the
filamentation of a femtosecond laser pulse in a fused silica. Using the polarigraphy and …