663 citations · 5.8k across the 130 of their papers we have counts for
6 papers · 2 filters
Multiphoton ghost imaging with classical light
I. N. Agafonov, M. V. Chekhova, A. N. Penin
One of the possible types of n-th order ghost imaging is experimentally performed using multi-photon (higher-order) intensity correlations of pseudothermal light. It is shown that…
Two-Color Bright Squeezed Vacuum
Ivan N. Agafonov, Maria V. Chekhova, Gerd Leuchs
In a strongly pumped non-degenerate traveling-wave OPA, we produce two-color squeezed vacuum with up to millions of photons per pulse. Our approach to registering this macroscopic…
Accessing higher order correlations by time-multiplexing
M. Avenhaus, K. Laiho, M. V. Chekhova +1
We experimentally measured higher order normalized correlation functions (nCF) of pulsed light with a time-multiplexing-detector. We demonstrate excellent performance of our device…
Chirped Biphotons and Their Compression in Optical Fibres
M. V. Chekhova, G. Kh. Kitaeva, O. A. Shumilkina +3
We show that broadband biphoton wavepackets produced via Spontaneous Parametric Down-Conversion (SPDC) in crystals with linearly aperiodic poling can be easily compressed in time u…
Arbitrary-order lensless ghost imaging with thermal light
Xi-Hao Chen, Ivan N. Agafonov, Kai-Hong Luo +4
Arbitrary Nth-order () lensless ghost imaging with thermal light has been performed for the first time by only recording the intensities in two optical paths. It is shown t…
Generation and Direct Detection of Broadband Mesoscopic Polarization-Squeezed Vacuum
T. Sh. Iskhakov, M. V. Chekhova, G. Leuchs
Using a traveling-wave OPA with two orthogonally oriented type-I BBO crystals pumped by picosecond pulses, we generate vertically and horizontally polarized squeezed vacuum states…