Title :
Direct frequency comb spectroscopy of trapped ions
Author :
Wolf, A.L. ; van den Berg, S.A. ; Ubachs, W. ; Eikema, K.S.E.
Author_Institution :
Laser Centre Vrije Univ., Amsterdam, Netherlands
Abstract :
The work reports the first direct frequency comb spectroscopy on trapped ions, calibrating the 4s 2Sm1/2- 4p 2P3/2 transition in cold 40Ca+. This one photon transition at 393 nm is relevant for the detection of a possible variation of the fine structure constant on a cosmological timescale. A comb at 393 nm is generated by frequency doubling of a Ti:Sa frequency comb at full repetition rate.
Keywords :
calcium; fine structure; laser cooling; particle traps; spectroscopic light sources; 4s 2Sm1/2- 4p 2P3/2 transition; Al2O3:Ti; Ca; Ti:Sa frequency comb; direct frequency comb spectroscopy; fine structure constant; frequency doubling; one photon transition; trapped ions; wavelength 393 nm; Cooling; Fluorescence; Frequency; Laboratories; Laser excitation; Laser transitions; Optical harmonic generation; Optical scattering; Particle beam optics; Spectroscopy;
Conference_Titel :
Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-4079-5
Electronic_ISBN :
978-1-4244-4080-1
DOI :
10.1109/CLEOE-EQEC.2009.5191492