Double pass acousto-optic frequency shifter measure hyperfine spectroscopy of iodine molecule

• Main Authors: Li-Chun Liu, 劉立群
• Other Authors: Wang-Yau Cheng
• Format: Others
• Language: zh-TW
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/44066496009869551617

碩士 === 國立東華大學 === 應用物理研究所 === 92 === Molecular iodine (127I2) has always been an attractive subject for spectroscopy because of its rich spectra from the UV to the IR. I2-stabilized lasers are also used as frequency standards for precision spectroscopic measurements and accurate determination of physical constants. We use the method of Double Pass Frequency shifter to measure the hyperfine splitting of iodine R(56)32-0 a1-a15. And made use of acousto-optic frequency shifter to reduce modulation width of laser，so we got absorption line of R(56)32-0 a10 directly。