Nonlinear optical phase shift obtained from two-level atoms confined in a planar microcavity

Oka, Hisaki; Fujiwara, Hideki; Takeuchi, Shigeki; Sasaki, Keiji

Nonlinear optical phase shift obtained from two-level atoms confined in a planar microcavity

Oka, Hisaki; Fujiwara, Hideki; Takeuchi, Shigeki et al.

Journal of Applied Physics, 2010, 107(5), 054310

Permalink : https://hdl.handle.net/2115/49853

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アクセス権	open access
URI	https://hdl.handle.net/2115/49853
タイトル	Nonlinear optical phase shift obtained from two-level atoms confined in a planar microcavity
著者	Oka, Hisaki ; Fujiwara, Hideki ; Takeuchi, Shigeki ; Sasaki, Keiji
著者名 Oka, Hisaki
e-Rad_Researcher 10374670 著者名 Fujiwara, Hideki
e-Rad_Researcher 80321959 著者名 Takeuchi, Shigeki
e-Rad_Researcher 00183822 著者名 Sasaki, Keiji
言語	英語
キーワード	Bragg gratings
	distributed Bragg reflectors
	finite difference time-domain analysis
	micro-optics
	nonlinear optics
	optical phase shifters
	optical resonators
発行日	2010-03-01
出版者	American Institute of Physics
収録物名	Journal of Applied Physics
巻(号)	107(5)
ページ	054310
抄録	We investigate the nonlinear optical phase shift obtained from a thin atomic layer confined in a distributed Bragg reflector (DBR) microcavity with reflection geometry. The optical response of the atom-cavity system is numerically analyzed using finite-difference time-domain method with the optical Bloch equations. The optimal position of atomic layer, at which a maximal phase shift of π is realized, drastically changes with the quality factor Q of the cavity. We show that for high Q the maximal phase shift of π can be obtained anywhere in the cavity field independently of atomic layer position. This result is in contrast to that obtained from a one-dimensional atom model in the limit of bad cavity, where a maximal phase shift of π is obtained only at the antinode of the cavity field. We also show that the independence of phase shift on atom position realized in high-Q regime is due to an interference effect in the surface layers of the DBR cavity.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	Copyright 2010 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in J. Appl. Phys. 107, 054310 (2010) and may be found at https://dx.doi.org/10.1063/1.3327411
PISSN	0021-8979
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1063/1.3327411