Abstract

Thermal relaxation of the second harmonic generation (SHG) observed in thermally poled soda-lime silicate glass is studied. At least two relaxation processes could be distinguished. Determined activation energy of the fastest SHG relaxation process is equal to about 0.5 eV. This SHG relaxation occurs at temperatures essentially below ones, at which the thermally stimulated depolarization current (TSDC) measurements show the relaxation of the spatial charge formed in thermal poling of the glasses. This confirms that SHG in poled glasses is not mostly conditioned by the “frozen” spatial charge and electric field of this charge.

Details

Title
To the issue of the second harmonic generation in poled silicate glasses
Author
Reshetov, I V 1 ; Kaasik, V P 1 ; Lipovskii, A A 2 ; Tagantsev, D K 3 

 Peter the Great St. Petersburg Polytechnic University, St. Petersburg 195251, Russia 
 Peter the Great St. Petersburg Polytechnic University, St. Petersburg 195251, Russia; Alferov University RAS, St. Petersburg 194021, Russia 
 Peter the Great St. Petersburg Polytechnic University, St. Petersburg 195251, Russia; Vavilov State Optical Institute, St. Petersburg 192171, Russia 
Publication year
2020
Publication date
Dec 2020
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2612129611
Copyright
© 2020. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.