Absolute optical absorption cross-section measurement of Rb atoms injected into superfluid helium using energetic ion beams

Kei Imamura, Yukari Matsuo, Wataru Kobayashi, Tsuyoshi Egami, Makoto Sanjo, Aiko Takamine, Tomomi Fujita, Daiki Tominaga, Yutaro Nakamura, Takeshi Furukawa, Takashi Wakui, Yuichi Ichikawa, Hiroki Nishibata, Tomoya Sato, Aleksey Gladkov, Long Chun Tao, Takafumi Kawaguchi, Yosuke Baba, Mari Iijima, Haruka GondaYasuharu Takeuchi, Rio Nakazato, Hitoshi Odashima, Hideki Ueno

Research output: Contribution to journalArticle

Abstract

We report on a new in situ laser spectroscopy technique using superfluid helium and a highly energetic ion beam. In taking advantage of superfluid helium as a host matrix for laser spectroscopy, we were able to develop an extremely low background detection system. The first demonstration using 85 Rb 31+ ion beam (66 MeV/nucleon) accelerated at the RIKEN accelerator facility shows improvement of detection limit by two orders of magnitude. A quantitative evaluation of Rb atoms in the observation region enables an analysis of their optical absorption cross-section in superfluid helium from the fluorescence intensity dependence on ion-beam intensity and applied laser power.

Original languageEnglish
Article number016502
JournalApplied Physics Express
Volume12
Issue number1
DOIs
Publication statusPublished - 1 Jan 2019

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Superfluid helium
absorption cross sections
Light absorption
Ion beams
optical absorption
Laser spectroscopy
ion beams
helium
laser spectroscopy
Atoms
atoms
Particle accelerators
accelerators
Demonstrations
Fluorescence
fluorescence
Lasers
evaluation
matrices
lasers

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Imamura, Kei ; Matsuo, Yukari ; Kobayashi, Wataru ; Egami, Tsuyoshi ; Sanjo, Makoto ; Takamine, Aiko ; Fujita, Tomomi ; Tominaga, Daiki ; Nakamura, Yutaro ; Furukawa, Takeshi ; Wakui, Takashi ; Ichikawa, Yuichi ; Nishibata, Hiroki ; Sato, Tomoya ; Gladkov, Aleksey ; Tao, Long Chun ; Kawaguchi, Takafumi ; Baba, Yosuke ; Iijima, Mari ; Gonda, Haruka ; Takeuchi, Yasuharu ; Nakazato, Rio ; Odashima, Hitoshi ; Ueno, Hideki. / Absolute optical absorption cross-section measurement of Rb atoms injected into superfluid helium using energetic ion beams. In: Applied Physics Express. 2019 ; Vol. 12, No. 1.
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abstract = "We report on a new in situ laser spectroscopy technique using superfluid helium and a highly energetic ion beam. In taking advantage of superfluid helium as a host matrix for laser spectroscopy, we were able to develop an extremely low background detection system. The first demonstration using 85 Rb 31+ ion beam (66 MeV/nucleon) accelerated at the RIKEN accelerator facility shows improvement of detection limit by two orders of magnitude. A quantitative evaluation of Rb atoms in the observation region enables an analysis of their optical absorption cross-section in superfluid helium from the fluorescence intensity dependence on ion-beam intensity and applied laser power.",
author = "Kei Imamura and Yukari Matsuo and Wataru Kobayashi and Tsuyoshi Egami and Makoto Sanjo and Aiko Takamine and Tomomi Fujita and Daiki Tominaga and Yutaro Nakamura and Takeshi Furukawa and Takashi Wakui and Yuichi Ichikawa and Hiroki Nishibata and Tomoya Sato and Aleksey Gladkov and Tao, {Long Chun} and Takafumi Kawaguchi and Yosuke Baba and Mari Iijima and Haruka Gonda and Yasuharu Takeuchi and Rio Nakazato and Hitoshi Odashima and Hideki Ueno",
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Imamura, K, Matsuo, Y, Kobayashi, W, Egami, T, Sanjo, M, Takamine, A, Fujita, T, Tominaga, D, Nakamura, Y, Furukawa, T, Wakui, T, Ichikawa, Y, Nishibata, H, Sato, T, Gladkov, A, Tao, LC, Kawaguchi, T, Baba, Y, Iijima, M, Gonda, H, Takeuchi, Y, Nakazato, R, Odashima, H & Ueno, H 2019, 'Absolute optical absorption cross-section measurement of Rb atoms injected into superfluid helium using energetic ion beams', Applied Physics Express, vol. 12, no. 1, 016502. https://doi.org/10.7567/1882-0786/aaf0a9

Absolute optical absorption cross-section measurement of Rb atoms injected into superfluid helium using energetic ion beams. / Imamura, Kei; Matsuo, Yukari; Kobayashi, Wataru; Egami, Tsuyoshi; Sanjo, Makoto; Takamine, Aiko; Fujita, Tomomi; Tominaga, Daiki; Nakamura, Yutaro; Furukawa, Takeshi; Wakui, Takashi; Ichikawa, Yuichi; Nishibata, Hiroki; Sato, Tomoya; Gladkov, Aleksey; Tao, Long Chun; Kawaguchi, Takafumi; Baba, Yosuke; Iijima, Mari; Gonda, Haruka; Takeuchi, Yasuharu; Nakazato, Rio; Odashima, Hitoshi; Ueno, Hideki.

In: Applied Physics Express, Vol. 12, No. 1, 016502, 01.01.2019.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Absolute optical absorption cross-section measurement of Rb atoms injected into superfluid helium using energetic ion beams

AU - Imamura, Kei

AU - Matsuo, Yukari

AU - Kobayashi, Wataru

AU - Egami, Tsuyoshi

AU - Sanjo, Makoto

AU - Takamine, Aiko

AU - Fujita, Tomomi

AU - Tominaga, Daiki

AU - Nakamura, Yutaro

AU - Furukawa, Takeshi

AU - Wakui, Takashi

AU - Ichikawa, Yuichi

AU - Nishibata, Hiroki

AU - Sato, Tomoya

AU - Gladkov, Aleksey

AU - Tao, Long Chun

AU - Kawaguchi, Takafumi

AU - Baba, Yosuke

AU - Iijima, Mari

AU - Gonda, Haruka

AU - Takeuchi, Yasuharu

AU - Nakazato, Rio

AU - Odashima, Hitoshi

AU - Ueno, Hideki

PY - 2019/1/1

Y1 - 2019/1/1

N2 - We report on a new in situ laser spectroscopy technique using superfluid helium and a highly energetic ion beam. In taking advantage of superfluid helium as a host matrix for laser spectroscopy, we were able to develop an extremely low background detection system. The first demonstration using 85 Rb 31+ ion beam (66 MeV/nucleon) accelerated at the RIKEN accelerator facility shows improvement of detection limit by two orders of magnitude. A quantitative evaluation of Rb atoms in the observation region enables an analysis of their optical absorption cross-section in superfluid helium from the fluorescence intensity dependence on ion-beam intensity and applied laser power.

AB - We report on a new in situ laser spectroscopy technique using superfluid helium and a highly energetic ion beam. In taking advantage of superfluid helium as a host matrix for laser spectroscopy, we were able to develop an extremely low background detection system. The first demonstration using 85 Rb 31+ ion beam (66 MeV/nucleon) accelerated at the RIKEN accelerator facility shows improvement of detection limit by two orders of magnitude. A quantitative evaluation of Rb atoms in the observation region enables an analysis of their optical absorption cross-section in superfluid helium from the fluorescence intensity dependence on ion-beam intensity and applied laser power.

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U2 - 10.7567/1882-0786/aaf0a9

DO - 10.7567/1882-0786/aaf0a9

M3 - Article

AN - SCOPUS:85059855747

VL - 12

JO - Applied Physics Express

JF - Applied Physics Express

SN - 1882-0778

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ER -