Measurement of sub-shot-noise spatial correlations without background subtraction.
In this Letter we present the measurement of sub-shot-noise spatial correlations without any subtraction of background, a result paving the way to realize sub-shot-noise imaging of weak objects.
Brida
Giorgio
G
INRIM, strada delle Cacce 91, 10135 Torino, Italy.
Caspani
Lucia
L
Gatti
Alessandra
A
Genovese
Marco
M
Meda
Alice
A
Berchera
Ivano Ruo
IR