Single-shot selective femtosecond and picosecond infrared laser crystallization of an amorphous Ge/Si multilayer stack

VA Volodin, Y Cheng, AV Bulgakov, Y Levy… - Optics & Laser …, 2023 - Elsevier
Pulsed laser crystallization is an efficient annealing technique to obtain polycrystalline
silicon or germanium films on non-refractory substrates. This is important for creating …

Laser crystallization of amorphous Ge thin films via a nanosecond pulsed infrared laser

C Korkut, K Çınar, I Kabacelik, R Turan… - Crystal Growth & …, 2021 - ACS Publications
Understanding the dynamics of the laser crystallization (LC) process of Ge thin films by
nanosecond (ns) pulsed infrared (IR) lasers is important for producing homogeneous, crack …

[BOOK][B] Relaxed Optics: Modelling and Discussions 3

PP Trokhimchuck - 2024 - evnuir.vnu.edu.ua
The last author book “Relaxed Optics: Modeling and Discussions 2” was published in
Lambert Academic Publishing in 2022. However, author active scientific researches in this …

Highly regular nanogratings on amorphous Ge films via laser-induced periodic surface sublimation

K Bronnikov, S Gladkikh, E Mitsai, E Modin… - Optics & Laser …, 2024 - Elsevier
Despite the fact that monocrystalline germanium (Ge) was historically the first material where
formation of laser-induced periodic surface structures (LIPSSs) was observed in 1965 and …

Crystallization of Amorphous Germanium Films and Multilayer a-Ge/a-Si Structures upon Exposure to Nanosecond Laser Radiation

VA Volodin, GK Krivyakin, GD Ivlev, SL Prokopyev… - Semiconductors, 2019 - Springer
The processes of the crystallization of amorphous germanium films and multilayer
germanium/silicon structures upon exposure to nanosecond (70 ns) ruby laser radiation (λ …

Optical and thermal behavior of germanium thin films under femtosecond laser irradiation

A Abdelmalek, L Kotsedi, Z Bedrane, EH Amara… - Nanomaterials, 2022 - mdpi.com
In this study, we theoretically investigate the response of a germanium thin film under
femtosecond pulsed laser irradiation. Electron and lattice temperatures, as well as material …

Ultrafast infrared laser crystallization of amorphous Ge films on glass substrates

Y Cheng, AV Bulgakov, NM Bulgakova, J Beránek… - Micromachines, 2023 - mdpi.com
Amorphous germanium films on nonrefractory glass substrates were annealed by ultrashort
near-infrared (1030 nm, 1.4 ps) and mid-infrared (1500 nm, 70 fs) laser pulses …

Dynamic evolution of high spatial frequency femtosecond laser-induced periodic surface nanostructures on germanium thin films

A Abdelmalek, L Kotsedi, Z Bedrane, EH Amara… - Surfaces and …, 2025 - Elsevier
We present a comprehensive theoretical study of the mechanisms lying behind the formation
of high spatial frequency laser-induced periodic nanostructures (HSFL-LIPSS) on …

In situ investigation of explosive crystallization in a-Ge: Experimental determination of the interface response function using dynamic transmission electron microscopy

L Nikolova, MJ Stern, JM MacLeod, BW Reed… - Journal of Applied …, 2014 - pubs.aip.org
The crystallization of amorphous semiconductors is a strongly exothermic process. Once
initiated the release of latent heat can be sufficient to drive a self-sustaining crystallization …

Picosecond infrared laser crystallization of Ge layers in Ge/Si multi-nanolayers for optoelectronic applications

VA Volodin, GK Krivyakin, AV Bulgakov… - … on Micro-and Nano …, 2022 - spiedigitallibrary.org
The processes involved in picosecond infrared pulsed laser annealing of multylayer
structures consisting of alternating thin films of amorphous silicon and germanium were …