書誌事項
- タイトル別名
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- Gapless THz Comb Spectroscopy
- ギャップレス THz コム ブンコウホウ
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説明
We demonstrated combination of gapless terahertz (THz) comb with asynchronous-optical-sampling THz time-domain spectroscopy (ASOPS-THz-TDS), namely gapless THz comb spectroscopy. The mode-resolved spectrum of THz comb was observed by measuring the temporal waveform of the THz pulse train with ASOPS-THz-TDS and calculating Fourier transform of it. Furthermore, the gapless THz comb was realized by interpolating frequency gaps between the comb modes with sweeping of a laser mode-locked frequency. The demonstration of low-pressure gas spectroscopy with gapless THz comb spectroscopy clearly indicated that the spectral resolution was decreased down to 2.5-MHz linewidth of the comb mode and the spectral accuracy was enhanced to 10‒7 within the spectral range of 1 THz. The proposed method will be a powerful tool to simultaneously achieve high resolution, high accuracy, and broad spectral coverage in THz spectroscopy.
収録刊行物
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- レーザー研究
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レーザー研究 42 (9), 700-, 2014
一般社団法人 レーザー学会
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詳細情報 詳細情報について
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- CRID
- 1390567172567653760
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- NII論文ID
- 130007897533
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- NII書誌ID
- AN00255326
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- ISSN
- 13496603
- 03870200
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- NDL書誌ID
- 025820460
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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サーチ
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- 抄録ライセンスフラグ
- 使用不可