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- 저자 : M. Chrunik (검색결과 1 건)
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Significant photoinduced increment of reflectivity coefficient in LiNa5Mo9O30
M. Chrunik,A. Majchrowski,K. Ozga,M. Ya. Rudysh,I.V. Kityk,A.O. Fedorchuk,V. Yo. Stadnyk,M. Piasecki 한국물리학회 2017 Current Applied Physics Vol.17 No.8
Synthesis of LiNa5Mo9O30 micropowders by means of sol-gel method through the citrate way was carried out. The DFT band structure calculations for obtained powders were done. Following the performed calculations, investigations of various optical functions as well as elastic properties were carried out. Basing on the analysis of the obtained results we performed photoinducing treatment of the samples near and outside the first UV spectral maximum of reflectivity (R) using the radiation of photoinducing UV nanosecond laser at 337 nm and second harmonic generated 532 nm signal originating from Nd:YAG laser emitting 1064 nm radiation, respectively. Significant enhancement of relative reflectivity (DR/R) in the spectral range 335e413 nm (3.7e3.0 eV) caused by photoinducing UV nanosecond laser treatment at 337 nm was observed. Huge sensitivity to the wavelength of photoinducing radiation of LiNa5Mo9O30 reflectivity was found. Discovered phenomenon indicates the possibility of LiNa5Mo9O30 application as an efficient optical trigger. Additionally it may be of huge importance for the production of high selective sensors of the laser light. Moreover, in a future we can use LiNa5Mo9O30 crystalline powder to make composite by embedding into polymer or glass matrices.
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