Temperature-dependent evaluation of Nd:LiCAF optical properties as potential vacuum ultraviolet laser material

Yuki Minami; Ren Arita; Marilou Cadatal-Raduban; Minh Hong Pham; Melvin John Fernandez Empizo; Mui Viet Luong; Tatsuhiro Hori; Masahiro Takabatake; Kazuhito Fukuda; Kazuyuki Mori; Kohei Yamanoi; Toshihiko Shimizu; Nobuhiko Sarukura; Kentaro Fukuda; Noriaki Kawaguchi; Yuui Yokota; Akira Yoshikawa

doi:10.1016/j.optmat.2016.05.011

Temperature-dependent evaluation of Nd:LiCAF optical properties as potential vacuum ultraviolet laser material

Yuki Minami, Ren Arita, Marilou Cadatal-Raduban, Minh Hong Pham, Melvin John Fernandez Empizo, Mui Viet Luong, Tatsuhiro Hori, Masahiro Takabatake, Kazuhito Fukuda, Kazuyuki Mori, Kohei Yamanoi, Toshihiko Shimizu, Nobuhiko Sarukura, Kentaro Fukuda, Noriaki Kawaguchi, Yuui Yokota, Akira Yoshikawa

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

5 Citations (Scopus)

Abstract

We investigate the temperature-dependent optical properties of Nd³⁺-doped LiCaAlF₆ (Nd:LiCAF) in the vacuum ultraviolet (VUV) region. The 172-nm absorption edge does not seem to experience any significant blue shift as temperature is decreased from room temperature down to 30 K. This is confirmed by excitation spectra for the same temperature range. Several energy levels in the excited state configuration are observed. Based on these energy levels, the dominant emission peak at 177 nm is assigned to the allowed dipole transition from the 4f²5d configuration of Nd³⁺ and the ⁴I_11/2 level of the 4f³ ground state configuration. The position of the dominant 177-nm emission peak appears to be fixed across the temperature range considered. Our results suggest that the spectral overlap between the excitation and emission spectra should not increase as temperature is raised, possibly making Nd:LiCAF a potential VUV laser gain medium operating at room temperature.

Original language	English
Pages (from-to)	5-8
Number of pages	4
Journal	Optical Materials
Volume	58
DOIs	https://doi.org/10.1016/j.optmat.2016.05.011
Publication status	Published - 2016 Aug 1

Keywords

Fluoride
Laser gain medium
Temperature-dependent evaluation
Vacuum ultraviolet spectroscopy

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Computer Science(all)
Atomic and Molecular Physics, and Optics
Spectroscopy
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry
Electrical and Electronic Engineering

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Minami, Y., Arita, R., Cadatal-Raduban, M., Pham, M. H., Empizo, M. J. F., Luong, M. V., Hori, T., Takabatake, M., Fukuda, K., Mori, K., Yamanoi, K., Shimizu, T., Sarukura, N., Fukuda, K., Kawaguchi, N., Yokota, Y., & Yoshikawa, A. (2016). Temperature-dependent evaluation of Nd:LiCAF optical properties as potential vacuum ultraviolet laser material. Optical Materials, 58, 5-8. https://doi.org/10.1016/j.optmat.2016.05.011

Temperature-dependent evaluation of Nd:LiCAF optical properties as potential vacuum ultraviolet laser material. / Minami, Yuki; Arita, Ren; Cadatal-Raduban, Marilou; Pham, Minh Hong; Empizo, Melvin John Fernandez; Luong, Mui Viet; Hori, Tatsuhiro; Takabatake, Masahiro; Fukuda, Kazuhito; Mori, Kazuyuki; Yamanoi, Kohei; Shimizu, Toshihiko; Sarukura, Nobuhiko; Fukuda, Kentaro; Kawaguchi, Noriaki; Yokota, Yuui ; Yoshikawa, Akira.

In: Optical Materials, Vol. 58, 01.08.2016, p. 5-8.

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

Minami, Y, Arita, R, Cadatal-Raduban, M, Pham, MH, Empizo, MJF, Luong, MV, Hori, T, Takabatake, M, Fukuda, K, Mori, K, Yamanoi, K, Shimizu, T, Sarukura, N, Fukuda, K, Kawaguchi, N, Yokota, Y & Yoshikawa, A 2016, 'Temperature-dependent evaluation of Nd:LiCAF optical properties as potential vacuum ultraviolet laser material', Optical Materials, vol. 58, pp. 5-8. https://doi.org/10.1016/j.optmat.2016.05.011

Minami, Yuki ; Arita, Ren ; Cadatal-Raduban, Marilou ; Pham, Minh Hong ; Empizo, Melvin John Fernandez ; Luong, Mui Viet ; Hori, Tatsuhiro ; Takabatake, Masahiro ; Fukuda, Kazuhito ; Mori, Kazuyuki ; Yamanoi, Kohei ; Shimizu, Toshihiko ; Sarukura, Nobuhiko ; Fukuda, Kentaro ; Kawaguchi, Noriaki ; Yokota, Yuui ; Yoshikawa, Akira. / Temperature-dependent evaluation of Nd:LiCAF optical properties as potential vacuum ultraviolet laser material. In: Optical Materials. 2016 ; Vol. 58. pp. 5-8.

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title = "Temperature-dependent evaluation of Nd:LiCAF optical properties as potential vacuum ultraviolet laser material",

abstract = "We investigate the temperature-dependent optical properties of Nd3+-doped LiCaAlF6 (Nd:LiCAF) in the vacuum ultraviolet (VUV) region. The 172-nm absorption edge does not seem to experience any significant blue shift as temperature is decreased from room temperature down to 30 K. This is confirmed by excitation spectra for the same temperature range. Several energy levels in the excited state configuration are observed. Based on these energy levels, the dominant emission peak at 177 nm is assigned to the allowed dipole transition from the 4f25d configuration of Nd3+ and the 4I11/2 level of the 4f3 ground state configuration. The position of the dominant 177-nm emission peak appears to be fixed across the temperature range considered. Our results suggest that the spectral overlap between the excitation and emission spectra should not increase as temperature is raised, possibly making Nd:LiCAF a potential VUV laser gain medium operating at room temperature.",

keywords = "Fluoride, Laser gain medium, Temperature-dependent evaluation, Vacuum ultraviolet spectroscopy",

author = "Yuki Minami and Ren Arita and Marilou Cadatal-Raduban and Pham, {Minh Hong} and Empizo, {Melvin John Fernandez} and Luong, {Mui Viet} and Tatsuhiro Hori and Masahiro Takabatake and Kazuhito Fukuda and Kazuyuki Mori and Kohei Yamanoi and Toshihiko Shimizu and Nobuhiko Sarukura and Kentaro Fukuda and Noriaki Kawaguchi and Yuui Yokota and Akira Yoshikawa",

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AU - Minami, Yuki

AU - Arita, Ren

AU - Cadatal-Raduban, Marilou

AU - Pham, Minh Hong

AU - Empizo, Melvin John Fernandez

AU - Luong, Mui Viet

AU - Hori, Tatsuhiro

AU - Takabatake, Masahiro

AU - Fukuda, Kazuhito

AU - Mori, Kazuyuki

AU - Yamanoi, Kohei

AU - Shimizu, Toshihiko

AU - Sarukura, Nobuhiko

AU - Fukuda, Kentaro

AU - Kawaguchi, Noriaki

AU - Yokota, Yuui

AU - Yoshikawa, Akira

PY - 2016/8/1

Y1 - 2016/8/1

N2 - We investigate the temperature-dependent optical properties of Nd3+-doped LiCaAlF6 (Nd:LiCAF) in the vacuum ultraviolet (VUV) region. The 172-nm absorption edge does not seem to experience any significant blue shift as temperature is decreased from room temperature down to 30 K. This is confirmed by excitation spectra for the same temperature range. Several energy levels in the excited state configuration are observed. Based on these energy levels, the dominant emission peak at 177 nm is assigned to the allowed dipole transition from the 4f25d configuration of Nd3+ and the 4I11/2 level of the 4f3 ground state configuration. The position of the dominant 177-nm emission peak appears to be fixed across the temperature range considered. Our results suggest that the spectral overlap between the excitation and emission spectra should not increase as temperature is raised, possibly making Nd:LiCAF a potential VUV laser gain medium operating at room temperature.

AB - We investigate the temperature-dependent optical properties of Nd3+-doped LiCaAlF6 (Nd:LiCAF) in the vacuum ultraviolet (VUV) region. The 172-nm absorption edge does not seem to experience any significant blue shift as temperature is decreased from room temperature down to 30 K. This is confirmed by excitation spectra for the same temperature range. Several energy levels in the excited state configuration are observed. Based on these energy levels, the dominant emission peak at 177 nm is assigned to the allowed dipole transition from the 4f25d configuration of Nd3+ and the 4I11/2 level of the 4f3 ground state configuration. The position of the dominant 177-nm emission peak appears to be fixed across the temperature range considered. Our results suggest that the spectral overlap between the excitation and emission spectra should not increase as temperature is raised, possibly making Nd:LiCAF a potential VUV laser gain medium operating at room temperature.

KW - Fluoride

KW - Laser gain medium

KW - Temperature-dependent evaluation

KW - Vacuum ultraviolet spectroscopy

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