CW-Dye Laser Spectrometer for Ultrahigh Resolution Spectroscopy: Design and Performance

• 作者: Hassan El-Kashef
• 来源期刊: 光学与光子学期刊(英文)
• 学科: 化学
• 关键词: DYE Laser Optical SPECTROSCOPY Radio Frequency Technique HYPERFINE Structure of ATOMS
• 年，卷（期）: 2014,（8）
• 页码范围: 228-236
• 页数: 9页
• 分类号: O6

摘要

This work is devoted to building-up of ultrahigh resolution cw-dye laser spectrometer system. This system used self-frequency-stabilized and temperature-compensated plano-confocal reference cavity. The one-way propagation is achieved using new construction of optical diode. The laser frequency selection and tuning is accomplished using Mach-Zehnder interferometer of free spectral range 42.5 GHz. In combination with computerized tunable radio frequency technique, this system is capable of a resolution of about ±1 KHz. Applications for measuring high lying, weakly occupied metastable states of free atoms (line 548.792 nm of V-51) are investigated to a high degree of accuracy. The results of the constants A and B of the hfs as measured by fluorescence spectroscopy show that A = 160.762 and B = -17.918, while the obtained results for the hfs constants A and B as measured by laser-RF double resonance technique give A = 160.9950 and B = -17.3358.