M R Vanner et al 2008 J. Phys. B: At. Mol. Opt. Phys. 41 051004 doi:10.1088/0953-4075/41/5/051004
M R Vanner, R J McLean, P Hannaford and A M Akulshin
Show affiliationsWe report on a tunable all-optical delay line for pulses with optical frequency within the Rb D2 absorption line. Using frequency tuning between absorption components from different isotopes, pulses of 10 ns duration are delayed in a 10 cm hot vapour cell by up to 40 ns while the transmission remains above 10%. The use of two isotopes allows the delay to be increased or decreased by optical pumping with a second laser, producing rapid tuning over a range of more than 40% of the initial delay at 110 °C. We investigate the frequency and intensity ranges in which this delay line can be realized. Our observations are in good agreement with a numerical model of the system.
32.80.Xx Level crossing and optical pumping
32.10.Bi Atomic masses, mass spectra, abundances, and isotopes
Issue 5 (14 March 2008)
Received 20 December 2007, in final form 25 January 2008
Published 26 February 2008
M R Vanner et al 2008 J. Phys. B: At. Mol. Opt. Phys. 41 051004
G Hétet et al 2007 J. Phys. B: At. Mol. Opt. Phys. 40 221
Schaefer Mechtilde et al 2006 J. Phys.: Conf. Ser. 28 115
Debra A. Fischer et al. 2007 ApJ 669 1336
Matthias D Wissert et al 2009 Nanotechnology 20 425203
J Kuběna et al 2007 J. Phys.: Condens. Matter 19 496202
D. Lübbert et al 2008 EPL 82 56002
J E Avron and O Kenneth 2006 New J. Phys. 8 68
David Ferry 2009 J. Phys.: Condens. Matter 21 040201
Q Liu et al 2006 J. Phys.: Conf. Ser. 43 1171