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Experiments using sub-wavelength dia...

Lai, Meimei.

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Experiments using sub-wavelength diameter tapered optical fibers in rubidium vapor.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Experiments using sub-wavelength diameter tapered optical fibers in rubidium vapor./
Author:	Lai, Meimei.
Description:	147 p.
Notes:	Source: Dissertation Abstracts International, Volume: 74-09(E), Section: B.
Contained By:	Dissertation Abstracts International74-09B(E).
Subject:	Physics, Optics. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3563340
ISBN:	9781303115936

Experiments using sub-wavelength diameter tapered optical fibers in rubidium vapor.
Lai, Meimei.

Experiments using sub-wavelength diameter tapered optical fibers in rubidium vapor. - 147 p.

Source: Dissertation Abstracts International, Volume: 74-09(E), Section: B.

Thesis (Ph.D.)--University of Maryland, Baltimore County, 2013.

In this work, we describe experimental research on a relatively new nonlinear optics system comprised of a sub-wavelength diameter Tapered Optical Fiber (TOF) suspended in atomic Rubidium (Rb) vapor. The compression of the evanescent optical mode propagating along the TOF enables a dramatic increase in the nonlinear interactions between the fields and the surrounding Rb atoms, thereby allowing the observation of a variety of nonlinear optical effects with very low-power fields. Specifically, we report on the observation of saturated absorption with nW power levels and, more significantly, the observation of two-photon absorption using power-levels corresponding to only 10's to 100's of photons interacting with the Rb atoms at a given time.

ISBN: 9781303115936Subjects--Topical Terms:

1018756
Physics, Optics.

Experiments using sub-wavelength diameter tapered optical fibers in rubidium vapor.
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020 $a 9781303115936
035 $a (MiAaPQ)AAI3563340
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040 $a MiAaPQ $c MiAaPQ
100 1 $a Lai, Meimei. $3 2093574
245 1 0 $a Experiments using sub-wavelength diameter tapered optical fibers in rubidium vapor.
300 $a 147 p.
500 $a Source: Dissertation Abstracts International, Volume: 74-09(E), Section: B.
500 $a Adviser: Todd B. Pittman.
502 $a Thesis (Ph.D.)--University of Maryland, Baltimore County, 2013.
520 $a In this work, we describe experimental research on a relatively new nonlinear optics system comprised of a sub-wavelength diameter Tapered Optical Fiber (TOF) suspended in atomic Rubidium (Rb) vapor. The compression of the evanescent optical mode propagating along the TOF enables a dramatic increase in the nonlinear interactions between the fields and the surrounding Rb atoms, thereby allowing the observation of a variety of nonlinear optical effects with very low-power fields. Specifically, we report on the observation of saturated absorption with nW power levels and, more significantly, the observation of two-photon absorption using power-levels corresponding to only 10's to 100's of photons interacting with the Rb atoms at a given time.
520 $a One significant drawback to this "TOF in Rb" system is that at the relatively high atomic densities needed for many of these experiments, Rb atoms accumulating on the TOF surface can cause a significant loss of overall transmission through the fiber. Here we report direct measurements of the time-scale associated with this transmission degradation for various Rb density conditions. We find that transmission is affected almost immediately after the introduction of Rb vapor into the system, and declines rapidly as the density is increased.
520 $a More significantly, we show how a heating element designed to raise the TOF temperature can be used to reduce this transmission loss and dramatically extend the effective TOF transmission lifetime. Our results indicate that it is possible to achieve relatively high TOF transmission, even in the presence of the relatively high Rb vapor densities that would be needed for many low-power nonlinear optics applications. This study represents a significant step in moving the basic "TOF in Rb" system from a laboratory setting towards a practical ultra-low-power nonlinear optics device.
590 $a School code: 0434.
650 4 $a Physics, Optics. $3 1018756
650 4 $a Physics, Atomic. $3 1029235
650 4 $a Physics, Quantum. $3 1671062
690 $a 0752
690 $a 0748
690 $a 0599
710 2 $a University of Maryland, Baltimore County. $b Physics, Applied. $3 1674118
773 0 $t Dissertation Abstracts International $g 74-09B(E).
790 $a 0434
791 $a Ph.D.
792 $a 2013
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3563340