Title :
Large waist cavity for ultra-narrow transition spectroscopy
Author :
Schaffer, Stefan A. ; Adsersen, Sigrid S. ; Christensen, Bjarke T. R. ; Thomsen, Jan W.
Author_Institution :
Niels Bohr Inst., Univ. of Copenhagen, Copenhagen, Denmark
Abstract :
Cavity enhanced spectroscopy on ultra-narrow transitions in atoms and molecules is a promising tool for frequency stabilization of clock lasers. However, the small beam waist of a typical cavity can effectively reduce the number of atoms in the system or introduce transit time broadening in the less controlled molecular systems. We present a cavity design with an internal telescope optimized to increase the waist from about 0:5 mm to 5 mm while still maintaining a convenient range of tuning parameters. Its usefulness in three separate spectroscopic systems is clarified.
Keywords :
atomic clocks; laser cavity resonators; laser frequency stability; laser tuning; telescopes; cavity enhanced spectroscopy; clock lasers; frequency stabilization; internal telescope; large waist cavity; tuning parameters; ultranarrow transition spectroscopy; Atom optics; Atomic beams; Atomic clocks; Cavity resonators; Lenses; Mirrors; Optical sensors;
Conference_Titel :
Frequency Control Symposium & the European Frequency and Time Forum (FCS), 2015 Joint Conference of the IEEE International
Conference_Location :
Denver, CO
Print_ISBN :
978-1-4799-8865-5
DOI :
10.1109/FCS.2015.7138923
