Active narrowband filtering, line narrowing and gain using ladder electromagnetically induced transparency in an optically thick atomic vapour

Keaveney, J.; Sargsyan, A.; Sarkisyan, D.; Papoyan, A.; Adams, C.S.

doi:10.1088/0953-4075/47/7/075002

Active narrowband filtering, line narrowing and gain using ladder electromagnetically induced transparency in an optically thick atomic vapour

Keaveney, J.; Sargsyan, A.; Sarkisyan, D.; Papoyan, A.; Adams, C.S.

Authors

J. Keaveney

A. Sargsyan

D. Sarkisyan

A. Papoyan

C.S. Adams

Abstract

Electromagnetically induced transparency (EIT) resonances using the 5S1/2 → 5P3/2 → 5D5/2 ladder-system in optically thick Rb atomic vapour are studied. We observe a strong line narrowing effect and gain at the 5S1/2 → 5P3/2 transition wavelength due to an energy-pooling assisted frequency conversion with characteristics similar to 4-wave mixing. As a result it is possible to observe tunable and switchable transparency resonances with amplitude close to 100% and a linewidth of 15 MHz. In addition, the large line narrowing effect allows resolution of 85Rb 5D5/2 hyperfine structure even in the presence of strong power broadening.

Citation

Keaveney, J., Sargsyan, A., Sarkisyan, D., Papoyan, A., & Adams, C. (2014). Active narrowband filtering, line narrowing and gain using ladder electromagnetically induced transparency in an optically thick atomic vapour. Journal of Physics B: Atomic, Molecular and Optical Physics, 47(7), https://doi.org/10.1088/0953-4075/47/7/075002

Journal Article Type	Article
Publication Date	Apr 14, 2014
Deposit Date	May 23, 2014
Publicly Available Date	May 26, 2014
Journal	Journal of Physics B: Atomic, Molecular and Optical Physics
Print ISSN	0953-4075
Electronic ISSN	1361-6455
Publisher	IOP Publishing
Peer Reviewed	Peer Reviewed
Volume	47
Issue	7
DOI	https://doi.org/10.1088/0953-4075/47/7/075002
Keywords	Electromagnetically induced transparency, Atomic line ﬁlter, Narrowband, Tunable, Frequency conversion, Energy pooling.

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Copyright Statement
© 2014 IOP Publishing Ltd. This is an author-created, un-copyedited version of an article accepted for publication in Journal of Physics B: Atomic, Molecular and Optical Physics. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at http://dx.doi.org/10.1088/0953-4075/47/7/075002.