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Studying the Nonlinear Optical Properties of Fluoride Laser Host Materials in the Ultraviolet Wavelength Region
- Source :
- Applied Sciences, Vol 12, Iss 372, p 372 (2022), Applied Sciences; Volume 12; Issue 1; Pages: 372
- Publication Year :
- 2021
- Publisher :
- MDPI AG, 2021.
-
Abstract
- Fluoride host materials doped with trivalent cerium ions have previously been demonstrated as successful laser materials in the ultraviolet wavelength region. However, the nonlinear optical properties of the fluoride hosts in this wavelength region have not been investigated yet, although nonlinearity could result in undesirable effects such as self-focusing and pulse distortion when these fluoride materials are used as gain media in high-power, ultrashort pulse laser oscillator and amplifier systems. In this work, the nonlinear refractive index of lithium calcium aluminum fluoride (LiCaAlF6), lithium strontium aluminum fluoride (LiSrAlF6), lanthanum fluoride (LaF3), and yttrium lithium fluoride (YLiF4) fluoride host materials are determined using the Kramers–Krönig relation model in the ultraviolet wavelength region. Self-focusing conditions, particularly at the peak laser emission wavelength of these materials, are further analyzed. Results show that LiCaAlF6 has the smallest nonlinear refractive index and self-focusing, making it an ideal host material under the conditions of ultrashort pulse and ultrahigh-power laser generation.
- Subjects :
- Fluid Flow and Transfer Processes
Technology
QH301-705.5
Physics
QC1-999
Process Chemistry and Technology
nonlinear refractive index
General Engineering
Engineering (General). Civil engineering (General)
ultraviolet
laser
fluoride materials
self-focusing
Computer Science Applications
Chemistry
General Materials Science
TA1-2040
Biology (General)
QD1-999
Instrumentation
Subjects
Details
- ISSN :
- 20763417
- Volume :
- 12
- Database :
- OpenAIRE
- Journal :
- Applied Sciences
- Accession number :
- edsair.doi.dedup.....b2cde5bea5a6d861773fedf43c43fcf8