TY  - JOUR
AU  - Zelenska, K.S.
AU  - Zelensky, S.E.
AU  - Kolesnik, O.S.
AU  - Aoki, Toru
AU  - Teselko, P.O.
TI  - Laser-induced thermal emission of carbon microparticles on transparent heat-sink substrates
T2  - Semiconductor Physics, Quantum Electronics & Optoelectronics
PY  - 2023
VL  - 26
IS  - 2
SP  - 201
EP  - 207
DO  - 10.15407/spqeo26.02.201
UR  - https://doi.org/10.15407/spqeo26.02.201
AB  - Thermal emission is an informative tool to study materials’ properties at high temperatures under laser irradiation. The kinetics decay of laser-induced thermal emission from carbon microparticles deposited on heat-sink surfaces of transparent dielectrics (glass and sapphire) was studied. A Q-switched YAG:Nd3+ laser (pulse duration τi = 20 ns, energy/power density 0.5 J·cm–2, 25 MW·cm–2) was employed to excite thermal emission. In calculations, the classical heat conduction equation was used. With increasing the thermal conductivity of substrate (from glass to sapphire), reduction in the emission pulse duration has been observed.
KW  - laser-induced thermal emission
KW  - carbon microparticles
KW  - heat-sink substrate
ER  -