384 citations · 1.2k across the 23 of their papers we have counts for
14 papers · 1 filter
Squeezing measurement with spectrally broadened in microstructured fiber local oscillator
A. Chudakov, V. Severin, A. Poshevkina +7
Recently, continuous variables (CV) quantum computing, i. e. computing employing squeezed states, has attracted significant attention, as it enables to increase the dimensionality…
Multimode squeezed light generation and characterization
Alexander Chudakov, Vladislav Severin, Anastasia Poshevkina +5
Nowadays, the realization of quantum computations and communications based on continuous variables has attracted a significant attention due to a substantial expansion of the syste…
Polarization effects in the nonlinear interference of down-converted photons
Anna Paterova, Hongzhi Yang, Chengwu An +2
We study polarization effects in the nonlinear interference of photons generated via frequency non-degenerate spontaneous parametric down conversion. Signal and idler photons gener…
Tunable Optical Coherence Tomography in the Infrared Range Using Visible Photons
Anna V. Paterova, Hongzhi Yang, Chengwu An +2
We report a proof-of-concept demonstration of a tunable infrared (IR) optical coherence tomography (OCT) technique with detection of only visible range photons. Our method is based…
Time-resolved spectroscopy with entangled photons
Dmitry A. Kalashnikov, Elizaveta V. Melik-Gaykazyan, Alexey A. Kalachev +3
Interaction of light with media often occurs with a femtosecond response time. Its measurement by conventional techniques requires the use of femtosecond lasers and sophisticated t…
Infrared Spectroscopy with Visible Light
Dmitry A. Kalashnikov, Anna V. Paterova, Sergei P. Kulik +1
Spectral measurements in the infrared (IR) optical range provide unique fingerprints of materials which are useful for material analysis, environmental sensing, and health diagnost…
Measurement of photon correlations with multipixel photon counters
Dmitry Kalashnikov, Leonid A. Krivitsky
Development of reliable photon number resolving detectors (PNRD), devices which are capable to distinguish 1,2,3.. photons, is of a great importance for quantum optics and its appl…
Imaging of Spatial Correlations of Two-Photon States
Ivan B. Bobrov, Dmitry A. Kalashnikov, Leonid A. Krivitsky
We use a fiber based double slit Young interferometer for studying the far-field spatial distribution of the two-photon coincidence rate (coincidence pattern) for various quantum s…
Quantum spectroscopy of plasmonic nanostructures
Dmitry A. Kalashnikov, Zhenying Pan, Arseniy I. Kuznetsov +1
We use frequency entangled photons, generated via spontaneous parametric down conversion, to measure the broadband spectral response of an array of gold nanoparticles exhibiting Fa…
Experimental observation of double-peak structure of coincidence spectra in ultra-fast Spontaneous Parametric Down Conversion
Dmitry A. Kalashnikov, Mikhail V. Fedorov, Leonid A. Krivitsky
The requirement on the symmetry of the biphoton wave function results in a double peak structure of the coincidence spectra of Spontaneous Parametric Down Conversion (SPDC) [1]. In…
Measurement of two-mode squeezing with photon number resolving multi-pixel detectors
Dmitry A. Kalashnikov, Si-Hui Tan, Timur Sh. Iskhakov +2
The measurement of the two-mode squeezed vacuum generated in an optical parametric amplifier (OPA) was performed with photon number resolving Multi-Pixel Photon Counters (MPPCs). I…
Crosstalk calibration of multi-pixel photon counters using coherent states
Dmitry A. Kalashnikov, Si-Hui Tan, Leonid A. Krivitsky
We present a novel method of calibration of crosstalk probability for multi-pixel photon counters (MPPCs) based on the measurement of the normalized second-order intensity correlat…
Accessing photon bunching with photon number resolving multi-pixel detector
Dmitry A. Kalashnikov, Si-Hui Tan, Maria V. Chekhova +1
In quantum optics and its applications, there is an urgent demand for photon-number resolving detectors. Recently, there appeared multi-pixel detectors (MPPC) that are able to dist…
Spectrally Resolved Quantum Tomography of Polarization Entangled States
Dmitry A. Kalashnikov, Leonid A. Krivitsky
We study broadband polarization entangled states generated within the line width of type-II Spontaneous Parametric Down Conversion (SPDC). Applying a complete quantum polarization…