書誌事項
- タイトル別名
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- Development of an Apparatus for Terahertz Spectroscopy in an Ultrahigh Vacuum : Temperature Dependence of the Spectrum of Vapor-Deposited D<sub>2</sub>O Ice
- 超高真空テラヘルツ分光装置の開発 : 真空蒸着D₂O氷のスペクトルの温度依存性
- チョウコウシンクウ テラヘルツ ブンコウ ソウチ ノ カイハツ : シンクウ ジョウチャク D ₂ Oヒョウ ノ スペクトル ノ オンド イソンセイ
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<p>An apparatus for terahertz spectroscopy in an ultrahigh vacuum has been developed. We used broadband Mylar for the beam splitter in a Fourier transform spectrometer, diamond for optical windows, and a liquid-helium-cooled Si bolometer for the terahertz detector to achieve the spectral range of 50–650 cm−1. For the purpose of keeping the ultrahigh vacuum in a sample chamber, we evacuated the whole optical path by turbo molecular pumps and made its pressure down to 10−4 Pa. Using this apparatus, we measured temperature dependence of the terahertz spectrum of D2O ice vapor-deposited at 10 K. The spectral changes due to the structural transformation from amorphous ice to cubic crystalline ice Ic were successfully observed in the range of 140–160 K. We report the spectral difference between low-density and high-density amorphous ice as well as that between hexagonal crystalline ice Ih and cubic one.</p>
収録刊行物
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- 表面と真空
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表面と真空 61 (4), 236-243, 2018
公益社団法人 日本表面真空学会
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詳細情報 詳細情報について
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- CRID
- 1390001206126058880
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- NII論文ID
- 130006688170
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- NII書誌ID
- AA12808657
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- ISSN
- 24335843
- 24335835
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- NDL書誌ID
- 028996276
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可