TY - JOUR
T1 - Measurement of the Static Structure Factor in a Paraxial Fluid of Light Using Bragg-like Spectroscopy
AU - Piekarski, Clara
AU - Liu, Wei
AU - Steinhauer, Jeff
AU - Giacobino, Elisabeth
AU - Bramati, Alberto
AU - Glorieux, Quentin
N1 - Publisher Copyright: © 2021 American Physical Society.
PY - 2021/7/9
Y1 - 2021/7/9
N2 - We implement Bragg-like spectroscopy in a paraxial fluid of light by imprinting analogues of short Bragg pulses on the photon fluid using wavefront shaping with a spatial light modulator. We report a measurement of the static structure factor, S(k), and we find a quantitative agreement with the prediction of the Feynman relation revealing indirectly the presence of pair-correlated particles in the fluid. Finally, we improve the resolution over previous methods and obtain the dispersion relation including a linear phononic regime for weakly interacting photons and low sound velocity.
AB - We implement Bragg-like spectroscopy in a paraxial fluid of light by imprinting analogues of short Bragg pulses on the photon fluid using wavefront shaping with a spatial light modulator. We report a measurement of the static structure factor, S(k), and we find a quantitative agreement with the prediction of the Feynman relation revealing indirectly the presence of pair-correlated particles in the fluid. Finally, we improve the resolution over previous methods and obtain the dispersion relation including a linear phononic regime for weakly interacting photons and low sound velocity.
UR - http://www.scopus.com/inward/record.url?scp=85110176920&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.127.023401
DO - 10.1103/PhysRevLett.127.023401
M3 - مقالة
SN - 0031-9007
VL - 127
JO - Physical Review Letters
JF - Physical Review Letters
IS - 2
M1 - 023401
ER -