Terahertz birefringence of β-BaB2O4 (BBO) crystal

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

Terahertz birefringence of β-BaB2O4 (BBO) crystal

2008

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

Birefringence was observed for a beta-BaB 2 O 4 crystal in the 0.1 to 1.1 terahertz region. The calculated Deltan value was ~0.296. Moreover, an angle-dependent absorption band observed at ~0.65 terahertz is attributed to low-frequency phonon modes.

Keywords:

Optoelectronics
Physics
Birefringence
Phonon
Terahertz radiation
Absorption band
Optics
Infrared
optical materials

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