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Generation of narrow-bandwidth paire...

Balic, Vlatko.

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Generation of narrow-bandwidth paired photons with electronically controllable waveforms.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Generation of narrow-bandwidth paired photons with electronically controllable waveforms./
Author:	Balic, Vlatko.
Description:	114 p.
Notes:	Source: Dissertation Abstracts International, Volume: 66-08, Section: B, page: 4277.
Contained By:	Dissertation Abstracts International66-08B.
Subject:	Physics, Atomic. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3186322
ISBN:	9780542285684

Generation of narrow-bandwidth paired photons with electronically controllable waveforms.
Balic, Vlatko.

Generation of narrow-bandwidth paired photons with electronically controllable waveforms. - 114 p.

Source: Dissertation Abstracts International, Volume: 66-08, Section: B, page: 4277.

Thesis (Ph.D.)--Stanford University, 2005.

It is well known that nonlinear optical processes can be resonantly enhanced with electromagnetically induced transparency (EIT) by simultaneously creating a destructive interference in absorption and a constructive interference in the nonlinear susceptibility. In this thesis we describe theory and experiments studying EIT-based nonlinear optical processes in cold rubidium atomic ensembles. Our first demonstration of EIT enhanced nonlinearity is an all-optical switch based on quantum interference where using a very weak laser beam we cause absorption of another laser beam. Next, using cw lasers and EIT we show generation of counterpropagating paired photons with coherence times of 50 ns and waveforms that are controllable at a rudimentary level. To generate paired photons, strong counter-propagating coupling and pump lasers are applied and parametric interaction results in generation of pairs of photons at Stokes and anti-Stokes frequencies into single-mode fibers at a rate of 12000 pairs per second. We measure second-order intensity correlation as a function of time difference between Stokes and anti-Stokes photodetections. By varying intensity of the coupling laser, two different regimes can be observed. In the first regime group delay of the atomic medium is the dominant timescale and observed correlation has a single peak whose width is equal to the group delay. In the second regime the dominant timescale is set by Rabi frequency of the coupling laser and we observe multiple oscillations in the correlation function and two-photon waveform has several peaks. The Cauchy-Schwartz inequality is violated by a factor of 400, suggesting strong non-classical correlations of photon pairs.

ISBN: 9780542285684Subjects--Topical Terms:

1029235
Physics, Atomic.

Generation of narrow-bandwidth paired photons with electronically controllable waveforms.
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100 1 $a Balic, Vlatko. $3 1909992
245 1 0 $a Generation of narrow-bandwidth paired photons with electronically controllable waveforms.
300 $a 114 p.
500 $a Source: Dissertation Abstracts International, Volume: 66-08, Section: B, page: 4277.
500 $a Adviser: Steve E. Harris.
502 $a Thesis (Ph.D.)--Stanford University, 2005.
520 $a It is well known that nonlinear optical processes can be resonantly enhanced with electromagnetically induced transparency (EIT) by simultaneously creating a destructive interference in absorption and a constructive interference in the nonlinear susceptibility. In this thesis we describe theory and experiments studying EIT-based nonlinear optical processes in cold rubidium atomic ensembles. Our first demonstration of EIT enhanced nonlinearity is an all-optical switch based on quantum interference where using a very weak laser beam we cause absorption of another laser beam. Next, using cw lasers and EIT we show generation of counterpropagating paired photons with coherence times of 50 ns and waveforms that are controllable at a rudimentary level. To generate paired photons, strong counter-propagating coupling and pump lasers are applied and parametric interaction results in generation of pairs of photons at Stokes and anti-Stokes frequencies into single-mode fibers at a rate of 12000 pairs per second. We measure second-order intensity correlation as a function of time difference between Stokes and anti-Stokes photodetections. By varying intensity of the coupling laser, two different regimes can be observed. In the first regime group delay of the atomic medium is the dominant timescale and observed correlation has a single peak whose width is equal to the group delay. In the second regime the dominant timescale is set by Rabi frequency of the coupling laser and we observe multiple oscillations in the correlation function and two-photon waveform has several peaks. The Cauchy-Schwartz inequality is violated by a factor of 400, suggesting strong non-classical correlations of photon pairs.
590 $a School code: 0212.
650 4 $a Physics, Atomic. $3 1029235
650 4 $a Physics, Optics. $3 1018756
690 $a 0748
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710 2 0 $a Stanford University. $3 754827
773 0 $t Dissertation Abstracts International $g 66-08B.
790 1 0 $a Harris, Steve E., $e advisor
790 $a 0212
791 $a Ph.D.
792 $a 2005
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3186322