Complex anisotropy ratio of third harmonic generation in a semiconductor using a terahertz free electron laser

Phan, Thanh Nhat Khoa; Wang, You Wei; Shimizu, Tomoki et al.

Optics Letters, 2024, 49(18), 5039-5042

アクセス数:32件（2026-09-20 05:42 集計）

固定URL: https://hdl.handle.net/11094/106459

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タイトル
Complex anisotropy ratio of third harmonic generation in a semiconductor using a terahertz free electron laser
著者
ORCID
0009-0008-4491-0459 0009-0008-4491-0459
Scopus Author ID
57193203069 57193203069
著者名
Phan, Thanh Nhat Khoa
著者名
Wang, You Wei
著者名
Shimizu, Tomoki
NRID
1000040751087 1000040751087
ORCID
0000-0002-9977-7439 0000-0002-9977-7439
researchmap permalink
kosakukato kosakukato
Scopus Author ID
57189303489 57189303489
著者名
Kato, Kosaku
ORCID
0000-0002-5408-5148 0000-0002-5408-5148
researchmap permalink
verdadagulto verdadagulto
Scopus Author ID
57194092779 57194092779
著者名
Agulto, Verdad C.
NRID
1000080125989 1000080125989
著者名
Isoyama, Goro
NRID
1000040372635 1000040372635
ORCID
0000-0001-8406-1772 0000-0001-8406-1772
researchmap permalink
shinsuke_fujioka shinsuke_fujioka
Scopus Author ID
24474814400 24474814400
著者名
Fujioka, Shinsuke
NRID
1000040361662 1000040361662
ORCID
0000-0002-0351-2197 0000-0002-0351-2197
researchmap permalink
nakajimamakoto nakajimamakoto
Scopus Author ID
55236697600 55236697600
著者名
Nakajima, Makoto
内容
Phan T.N.K., Wang Y.W., Shimizu T., et al. Complex anisotropy ratio of third harmonic generation in a semiconductor using a terahertz free electron laser. Optics Letters 49(18), 5039-5042 (2024); https://doi.org/10.1364/OL.532646.
抄録
The nonlinear susceptibility in the terahertz region is expected to have a non-negligible imaginary part originating from the momentum-dependent scattering time of free carriers, but it has been scarcely reported. By utilizing an intense 4 THz beam from a terahertz free electron laser, we investigated the azimuth angle dependence of the third harmonic generation (THG) from semiconductors. The observed angular anisotropy of THG revealed the contribution of the imaginary part of the nonlinear susceptibility originating from the momentum-scattering time relation in addition to its real part originating from the band nonparabolicity. The results provide a deeper understanding of nonlinear optics in the terahertz region.
出版者
Optica Publishing Group (formerly OSA)
収録物名
Optics Letters
巻(号)
49(18)
ページ
5039-5042
刊行年月
2024-09-03
言語
英語
ハンドルURL
https://hdl.handle.net/11094/106459
PISSN
01469592
eISSN
15394794
関連情報 (isVersionOf)
DOI (出版社版)
https://doi.org/10.1364/OL.532646
アクセス権
open access
権利情報
© 2024 Optica Publishing Group. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.
出版タイプ
Accepted Manuscript
カテゴリ
学術雑誌論文 Journal Article