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Third-order optical nonlinearity originating from room-temperature exciton in layered compounds LaCuOS and LaCuOSe

Authors :
Hosono Transparent Electro-Active Materials Project, ERATO, Japan Science and Technology Agency, KSP C-1232, 3-2-1 Sakado, Takatsu-ku, Kawasaki 213-0012, Japan
Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan （Kyushu Institute of Technology, Tobataku-Kitakyushu 804-8550, Japan)
Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
Kamioka, Hayato
Hiramatsu, Hidenori
Ohta, Hiromichi
Hirano, Masahiro
Ueda, Kazushige
Kmiya, Toshio
Hosono, Hideo
Hosono Transparent Electro-Active Materials Project, ERATO, Japan Science and Technology Agency, KSP C-1232, 3-2-1 Sakado, Takatsu-ku, Kawasaki 213-0012, Japan
Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan （Kyushu Institute of Technology, Tobataku-Kitakyushu 804-8550, Japan)
Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
Kamioka, Hayato
Hiramatsu, Hidenori
Ohta, Hiromichi
Hirano, Masahiro
Ueda, Kazushige
Kmiya, Toshio
Hosono, Hideo
Publication Year :
2017

Abstract

type:Journal Article<br />We have studied the third-order optical nonlinearity ((3)) of epitaxial thin films of layered compounds LaCuOS and LaCuOSe at room temperature by a spectrally resolved degenerative four-wave mixing technique with femtosecond time resolution. The (3) values in both films are sharply resonant to optical absorption bands in the ultraviolet (UV) light region due to room-temperature exciton. The peak values are evaluated to be as large as 2–4×10–9 esu with a fast time response of 250–300 fs. These findings indicate that LaCuOS and LaCuOSe are promising materials for emerging optical nonlinear devices that operate in the UV light region compatible for GaN-based lasers.<br />source:https://doi.org/10.1063/1.1646221<br />source:http://www.aip.org

Details

Database :
OAIster
Notes :
English
Publication Type :
Electronic Resource
Accession number :
edsoai.on1389680031
Document Type :
Electronic Resource

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