TY - JOUR
T1 - Interference of two pulse-like spatial beams with arbitrary transverse separation
AU - Flórez, Jefferson
AU - Álvarez, Juan Rafael
AU - Calderón-Losada, Omar
AU - Salazar-Serrano, Luis José
AU - Valencia, Alejandra
N1 - Publisher Copyright:
© 2016 IOP Publishing Ltd.
PY - 2016/12/1
Y1 - 2016/12/1
N2 - 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.
AB - 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.
KW - Alford and Gold effect
KW - spatial beam shaping
KW - spatial interference
UR - https://www.scopus.com/pages/publications/85009999443
U2 - 10.1088/2040-8978/18/12/125201
DO - 10.1088/2040-8978/18/12/125201
M3 - Article
AN - SCOPUS:85009999443
SN - 2040-8978
VL - 18
JO - Journal of Optics (United Kingdom)
JF - Journal of Optics (United Kingdom)
IS - 12
M1 - 125201
ER -