Laser frequency stabilization using an Fe-Ar hollow cathode discharge cell

Autor: Rcm Roeland Bosch, van der P Peter Straten, te E Edwin Sligte, B Bart Smeets, Hcw Herman Beijerinck, Robert E. Scholten, van Kah Ton Leeuwen
Jazyk: angličtina
Rok vydání: 2003
Předmět:
Zdroj: Applied Physics B: Lasers and Optics, B76(8), 815-819. Springer
ISSN: 0946-2171
DOI: 10.1007/s00340-003-1228-1
Popis: Polarization spectroscopy of an Fe-Ar hollow cathode discharge cell was used to lock a frequency-doubled Ti:sapphire laser to the 372-nm5D4→5F5 transition of 56Fe. The discharge cell produced a density of 1018 m-3 ground-state 56Fe atoms at a temperature of 650 K, this density being comparable to a conventional oven at 1500 K. Saturated absorption spectroscopy and two schemes of polarization spectroscopy were compared with respect to signal-to-background ratio and the effect of velocity-changing collisions. The laser was locked within 0.2 MHz for hours by feedback of the dispersive polarization spectroscopy signal.
Databáze: OpenAIRE