2016年12月
Wide-dynamic-range cantilever magnetometry using a fiber-optic interferometer and its application to high-frequency electron spin resonance spectroscopy
APPLIED PHYSICS EXPRESS
- ,
- ,
- ,
- 巻
- 9
- 号
- 12
- 開始ページ
- 4
- 終了ページ
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.7567/APEX.9.126701
- 出版者・発行元
- IOP PUBLISHING LTD
We present a method of broadening the dynamic range of optical interferometric detection of cantilever displacement. The key idea of this method is the use of a wavelength-tunable laser source. The wavelength is subject to proportional-integral control, which is used to keep the cavity detuning constant. Under this control, the change in wavelength is proportional to the cantilever displacement. Using this technique, we can measure large displacements (> 1 mu m) without degrading the sensitivity. We apply this technique to high-frequency electron spin resonance spectroscopy and succeed in removing an irregular background signal that arises from the constantly varying sensitivity of the interferometer. (C) 2016 The Japan Society of Applied Physics.
- リンク情報
- ID情報
-
- DOI : 10.7567/APEX.9.126701
- ISSN : 1882-0778
- eISSN : 1882-0786
- ORCIDのPut Code : 31569929
- Web of Science ID : WOS:000387568600001