8-12 July 2013
Africa/Johannesburg timezone
<a href="http://events.saip.org.za/internalPage.py?pageId=13&confId=32"><font color=#ff0000>SAIP2013 PROCEEDINGS AVAILABLE</font></a>

Quantum entanglement with a Hermite-Gaussian pump

9 Jul 2013, 17:40
Poster Presentation Track C - Photonics Poster1


Ms Melanie McLaren (CSIR National Laser Centre)

Abstract content <br> &nbsp; (Max 300 words)

Typically, a Gaussian mode is used to pump a non-linear crystal to produce pairs of entangled photons. We demonstrate orbital angular momentum (OAM) entanglement when a non-fundamental mode is used to pump a non-linear crystal. An approximation to an HG10 Hermite-Gaussian beam is produced by introducing a phase step into the transverse profile of the pump beam. We show both OAM and angular position correlations between the entangled pair of photons, by using two separate spatial light modulators to perform the measurements. The transfer of the OAM spectrum of the pump beam to the entangled photons is clearly illustrated and corresponds well with previous results demonstrating OAM conservation. This is the first step towards tailoring the entangled quantum states.

Level for award<br>&nbsp;(Hons, MSc, <br> &nbsp; PhD)?


Apply to be<br> considered for a student <br> &nbsp; award (Yes / No)?


Main supervisor (name and email)<br>and his / her institution

Andrew Forbes

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Primary author

Ms Melanie McLaren (CSIR National Laser Centre)


Prof. Andrew Forbes (CSIR National Laser Centre) Mr Daniele Giovannini (University of Glasgow) Dr FS Roux (CSIR National Laser Centre) Dr Jacquiline Romero (University of Glasgow) Prof. Miles Padgett (University of Glasgow)

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