(Ga54.59In44.66Er0.75)2S300 single crystal: novel material for detection of \u03b3-radiation by photoinduced nonlinear optical method

I V Kityk,I A Ivashchenko,O O Lebed,I D Olekseyuk,A H Kevshyn,G Lakshminarayana,M Piasecki,V V Halyan

doi:10.1007/s10854-017-7262-2

Abstract

It was shown a possibility to use the (Ga54.59In44.66Er0.75)2S300 single crystal as optoelectronics detectors of gamma-irradiation using photoinduced nonlinear optical methods and photoluminescence. The crystal was irradiated by a 60Co source at ambient conditions. The average energy of the incident γ-rays was about 1.25 MeV. The luminescence excitation was carried out using a 150 mW cw laser with wavelength 532 nm. The best results sensitive to the gamma irradiation were obtained for the third harmonic generations (THG) of the materials treated by bicolor Er: glass laser two beams propagated at angles about 21°–24°. The photoinduced gratings profile also were explored and their correlation with the gamma radiation and nonlinear optical response were explored. Comparison of photoluminescence and photoinduced nonlinear optical sensitivity to radiations was performed.

Highlights

The application of the optical methods for detection of gamma radiation is a promising way for the radiation monitoring [1,2,3]
Compared to the commonly used methods our new attempt: the application of the (Ga54.59In44.66Er0.75)2S300 crystal as the detector material along with photoinduced nonlinear optical method significantly improve the sensitivity to the dose of radiation
For this reason more important is to use several optical parameters. It is used photoluminescence and one can expect the possible use of photoinduced nonlinear optics [4]

Summary

Introduction

The application of the optical methods for detection of gamma radiation is a promising way for the radiation monitoring [1,2,3] These methods are high sensitive and selective, quick and may be used in the different environments. Compared to the commonly used methods our new attempt: the application of the (Ga54.59In44.66Er0.75)2S300 crystal as the detector material along with photoinduced nonlinear optical method significantly improve the sensitivity to the dose of radiation. For this reason more important is to use several optical parameters. The latter is very sensitive because allows to monitor the higher excited states, take into account contribution of the photopolarized states [5]

Objectives

Results

Conclusion