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Browsing by Subject "Spontaneous parametric down-conversion"

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Azimuthal spectrum after parametric down-convertion with radial degrees of freedom

Author: Zhang, Y ; Roux, FS ; McLaren, M ; Forbes, A Date: Aug 2014 Considering the quantum state produced in type I spontaneous parametric down-conversion with collinear, degenerate signal and idler beams, and a Gaussian pump, we show that the azimuthal Schmidt number in the Laguerre-Gaussian (LG) basis ... Read more
Orbital angular momentum correlations with a phase-flipped Gaussian mode pump beam

Author: Romero, J ; Giovannini, D ; McLaren, MG ; Galvez, EJ ; Forbes, A ; Padgett, MJ Date: Aug 2012 We report orbital angular momentum (OAM) and angle correlations between signal and idler photons observed when the nonlinear crystal used in spontaneous parametric down-conversion is illuminated by a non-fundamental Gaussian pump beam. We ... Read more
Quantum entanglement with a hermite-gaussian pump; poster

Author: McLaren, M ; Romero, J ; Giovannini, D ; Galvez, EJ ; Padgett, MJ ; Forbes, A Date: Jul 2013 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 ... Read more
Simulating quantum state engineering in spontaneous parametric down-conversion using classical light

Author: Zhang, Y ; Mclaren, M ; Roux, FS ; Forbes, A Date: Jul 2014 We present a simple method of simulating the effect of the pumping process in spontaneous parametric down-conversion (SPDC) by modulating a classical laser beam with two spatial light modulators through a back projection setup. We simulate a ... Read more

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Browsing by Subject "Spontaneous parametric down-conversion"

Browsing by Subject "Spontaneous parametric down-conversion"

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