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

doi:10.1063/1.2890727

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

New Industry Creation Hatchery Center (NICHe)

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

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.

Original language	English
Article number	091116
Journal	Applied Physics Letters
Volume	92
Issue number	9
DOIs	https://doi.org/10.1063/1.2890727
Publication status	Published - 2008

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10.1063/1.2890727

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title = "Birefringence of Β-BaB2O4 crystal in the terahertz region for parametric device design",

abstract = "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.",

author = "Elmer Estacio and Shigeki Saito and Tomoharu Nakazato and Yusuke Furukawa and Nobuhiko Sarukura and Marilou Cadatal and Pham, {Minh Hong} and Carlito Ponseca and Hiroshi Mizuseki and Yoshiyuki Kawazoe",

note = "Funding Information: This research is supported by the Grant-in-Aid for Creative Scientific Research (17GS0209), from the Japan Society for the Promotion of Science.",

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T1 - Birefringence of Β-BaB2O4 crystal in the terahertz region for parametric device design

AU - Estacio, Elmer

AU - Saito, Shigeki

AU - Nakazato, Tomoharu

AU - Furukawa, Yusuke

AU - Sarukura, Nobuhiko

AU - Cadatal, Marilou

AU - Pham, Minh Hong

AU - Ponseca, Carlito

AU - Mizuseki, Hiroshi

AU - Kawazoe, Yoshiyuki

N1 - Funding Information: This research is supported by the Grant-in-Aid for Creative Scientific Research (17GS0209), from the Japan Society for the Promotion of Science.

PY - 2008

Y1 - 2008

N2 - 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.

AB - 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.

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

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