Two-photon excited luminescence in POPOP under pulse-periodic laser excitation

被引：3
作者：
Sverbil, P. P. [1 ]
Gorelik, V. S. [1 ,2 ]
Kupov, M. R. [2 ]
Lepnev, L. S. [1 ]
Savransky, V. V. [3 ]
机构：
[1] Russian Acad Sci, Lebedev Phys Inst, Moscow 119991, Russia
[2] Bauman Moscow State Tech Univ, Moscow 105005, Russia
[3] Russian Acad Sci, Prokhorov Gen Phys Inst, Moscow 119991, Russia
来源：
LASER PHYSICS | 2020年 / 30卷 / 02期
关键词：
two-photon excited luminescence; Raman scattering; laser; POPOP; CROSS-SECTIONS; FLUORESCENCE; ABSORPTION; CRYSTAL; ENERGY; CELLS;
D O I：
10.1088/1555-6611/ab5d29
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The spectra of two-photon-excited luminescence were registered in a polycrystalline aromatic compound POPOP. The two-photon luminescence in this substance was excited by the second optical harmonic of a solid-state neodymium-doped yttrium lithium fluoride laser (lambda = 527 nm) and a copper vapor laser (lambda = 510.6 nm). It is shown that the intensity of two-photon-excited luminescence depends nonlinearly on the intensity of an exciting radiation. It has been established that the intensity of the two-photon-excited luminescence is comparable to the intensity of Raman scattering under certain excitation conditions.
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页数：4
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