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

Hassan  El-Kashef

doi:10.4236/opj.2014.48023

Hassan El-Kashef^*

Abstract: 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.

Keywords: Dye Laser, Optical Spectroscopy, Radio Frequency Technique, Hyperfine Structure of Atoms

Cite this paper: El-Kashef, H. (2014) CW-Dye Laser Spectrometer for Ultrahigh Resolution Spectroscopy: Design and Performance. Optics and Photonics Journal, 4, 228-236. doi: 10.4236/opj.2014.48023.

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