Ultranarrow absorptive spectral line induced by microwave field

doi:10.1088/1674-1056/18/1/032

Abstract

Abstract This paper investigates the absorptive spectral lines of four-level atomic system driven by a coupling, probe and microwave fields. Due to the perturbation of the microwave field, the original electromagnetically induced transparency is changed to electromagnetically induced absorption and the absorptive spectral line can be very narrow. This ultranarrow spectral line has potential applications to the microwave atomic frequency standard and the measurement of very weak magnetic field.

Keywords: photon--atom interaction susceptibility quantum interference phenomenon

Received: 27 December 2007
Revised: 21 May 2008
Accepted manuscript online:

PACS:	32.70.-n	(Intensities and shapes of atomic spectral lines)
	32.80.-t	(Photoionization and excitation)
	42.50.Gy	(Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)

Fund: Project supported by the Knowledge Innovation Program (KIP) of the Chinese Academy of Sciences(Grant No KGCX3-SYW-405) and the State Key Development Program for Basic Research of China(Grant Nos 2005CB724507 and 2006CB921202).

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Hu Zheng-Feng(胡正峰), Ma Yi-Sheng(马易升), Deng Jian-Liao(邓见辽), He Hui-Juan(何慧娟), and Wang Yu-Zhu(王育竹) Ultranarrow absorptive spectral line induced by microwave field 2009 Chin. Phys. B 18 199

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