@article{oai:sucra.repo.nii.ac.jp:00017725,
 author = {傳田, 晟矢 and 近藤, 一史 and 大向, 隆三},
 issue = {2},
 journal = {埼玉大学紀要. 教育学部, Journal of Saitama University. Faculty of Education},
 month = {},
 note = {We report on the production of a phase-sensitive detector (PSD) to measure the atomic absorption spectra. The PSD was designed to consist of a multiple feedback filter circuit with a center frequency of 500 Hz, a multiplier circuit using an analog switching device and a phase-locked loop circuit to adjust the phase of the electric signal where a constant offset voltage is applied to the voltage controlled oscillator. To check our PSD's performance, we tried to measure the absorption spectrum of the rubidium D2 line (85Rb: 5S1/2 – 5P3/2) with it. The probe beam intensity was modulated at a frequency of 500 Hz by using an optical chopper, and it was detected by conventional saturation spectroscopy. As a result, we clearly obtained six absorption peaks that originated from the atomic and cross-over resonances as expected. The observed line widths of the peaks were almost 15.0 MHz, which is comparable to the natural line width restricted by the lifetime of the excited 5P3/2 state. Therefore, our PSD is applicable for signal detection in Doppler-free spectroscopy, modulation spectroscopy, and especially for the generation of derivative signals for locking the laser frequency to atomic resonance lines., text, application/pdf},
 pages = {205--215},
 title = {原子のスペクトル測定に向けた位相敏感検波器の試作<数学･自然科学>},
 volume = {63},
 year = {2014},
 yomi = {デンダ, セイヤ and コンドウ, ヒトシ and オオムカイ, リュウゾウ}
}