Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Low-light-level ladder-type electromagnetically induced transparency and two-photon absorption

Not Accessible

Your library or personal account may give you access

Abstract

Ladder-type electromagnetically induced transparency (EIT) and two-photon absorption (TPA) under a low-light level of probe (0.2μW/cm2(0.06Γ2)) and weak coupling power for a cesium atom at room temperature are investigated. Reduction of the fluorescence on the TPA in a three-level system via EIT interference is clearly observed and analyzed under the low probe Rabi frequency of about 0.30 MHz to avoid the affects from the vicinity of intermediate hyperfine states. The transparency ratio of EIT derived from the reduction of fluorescence is about 25%. Additionally, the EIT linewidth observed can be as narrow as 2.64 MHz, while the coupling Rabi frequency is around 2.66 MHz. By solving the steady-state optical Bloch equations, the numerical simulation spectra are in good agreement with EIT and TPA. According to our investigations, the Doppler velocity averaging effect over the thermal atoms reducing the linewidth of the EIT signal proves the advantage of observing the EIT in the room-temperature cell.

© 2014 Optical Society of America

Full Article  |  PDF Article
More Like This
Atomic coherences of on-resonant and off-resonant two-photon absorptions in a ladder-type atomic system

Han Seb Moon and Heung-Ryoul Noh
J. Opt. Soc. Am. B 31(5) 1217-1222 (2014)

Interference between electromagnetically induced transparency and two-step excitation in three-level ladder systems

Nobuhito Hayashi, Akihiko Fujisawa, Hiroaki Kido, Ken-ichi Takahashi, and Masaharu Mitsunaga
J. Opt. Soc. Am. B 27(8) 1645-1650 (2010)

Coupling-intensity effects in ladder-type electromagnetically induced transparency of rubidium atoms

Han Seb Moon, Lim Lee, and Jung Bog Kim
J. Opt. Soc. Am. B 22(12) 2529-2533 (2005)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (7)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (3)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved