Birefringence of Β-BaB2O4 crystal in the terahertz region for parametric device design

Elmer Estacio, Shigeki Saito, Tomoharu Nakazato, Yusuke Furukawa, Nobuhiko Sarukura, Marilou Cadatal, Minh Hong Pham, Carlito Ponseca, Hiroshi Mizuseki, Yoshiyuki Kawazoe

研究成果: Article査読

22 被引用数 (Scopus)

抄録

Β-Ba B2 O4 (BBO) was found to have huge birefringence in the 0.1-1.1 THz frequency region. Polarized terahertz transmission spectroscopy revealed a Δnn value of about 0.12±0.02. This result could be related to a polarization-dependent absorption that was observed at about 0.65 THz; in close agreement with first principles-calculations, showing this to be due to low-frequency phonon modes of the [B3 O6] 3 -rings. These findings suggest the utilization of the birefringent properties of BBO for optical parametric devices including amplifiers and oscillators, operating in the terahertz regime.

本文言語English
論文番号091116
ジャーナルApplied Physics Letters
92
9
DOI
出版ステータスPublished - 2008

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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