Interference of two pulse-like spatial beams with arbitrary transverse separation

Jefferson Flórez, Juan Rafael Álvarez, Omar Calderón-Losada, Luis José Salazar-Serrano, Alejandra Valencia
April, 2018
PDF Journal of Optics

Abstract

We report the observation of interference in position and transverse momentum variables between two parallel-propagating Gaussian beams separated by an arbitrary distance. This resembles the Alford and Gold effect that has been reported for the time-frequency degree of freedom, and constitutes a method for spatial intensity shaping of light beams. We observe this interference by using a tunable beam displacer, which plays the role of a Michelson interferometer for the transverse spatial variables. Additionally, we employ the interference pattern as a function of the separation between the beams to determine the spatial coherence length of the original beam.

Type
2
Publication
In Journal of Optics
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Juan Rafael Álvarez
Juan Rafael Álvarez
Postdoctoral Researcher

I am interested in understanding the fundamental questions behind Quantum Optics. I work with quantum dot single photon sources at the Centrer for Nanoscience and Nanotechnology (C2N).