117 citations · 425 across the 13 of their papers we have counts for
10 papers · 1 filter
High-Capacity Angularly-Multiplexed Holographic Memory Operating at the Single Photon Level
Radosław Chrapkiewicz, Michał Dąbrowski, Wojciech Wasilewski
We experimentally demonstrate an angularly-multiplexed holographic memory capable of intrinsic generation, storage and retrieval of multiple photons, based on off-resonant Raman in…
Hologram of a Single Photon
Radosław Chrapkiewicz, Michał Jachura, Konrad Banaszek +1
The spatial structure of single photons is becoming an extensively explored resource used for facilitating the free-space quantum key distribution and quantum computation as well a…
Magnetically tuned, robust and efficient filtering system for spatially multimode quantum memory in warm atomic vapors
Michał Dąbrowski, Radosław Chrapkiewicz, Wojciech Wasilewski
Warm atomic vapor quantum memories are simple and robust, yet suffer from a number of parasitic processes which produce excess noise. For operating in a single-photon regime precis…
Photon counts statistics of squeezed and multi-mode thermal states of light on multiplexed on-off detectors
Radosław Chrapkiewicz
Photon number resolving detectors can be highly useful for studying the statistics of multi-photon quantum states of light. In this work we study the counts statistics of different…
Mode engineering for realistic quantum-enhanced interferometry
Michał Jachura, Radosław Chrapkiewicz, Rafał Demkowicz-Dobrzański +2
Quantum metrology overcomes standard precision limits by exploiting collective quantum superpositions of physical systems used for sensing, with the prominent example of non-classi…
Shot-by-shot imaging of Hong-Ou-Mandel interference with an intensified sCMOS camera
Michał Jachura, Radosław Chrapkiewicz
We report the first observation of Hong-Ou-Mandel (HOM) interference of highly indistinguishable photon pairs with spatial resolution. Direct imaging of two-photon coalescence with…
Hamiltonian design in readout from room-temperature Raman atomic memory
Michał Dąbrowski, Radosław Chrapkiewicz, Wojciech Wasilewski
We present an experimental demonstration of the Hamiltonian manipulation in light-atom interface in Raman-type warm rubidium-87 vapor atomic memory. By adjusting the detuning of th…
Generation and delayed retrieval of spatially multimode Raman scattering in warm rubidium vapors
Radoslaw Chrapkiewicz, Wojciech Wasilewski
We apply collective Raman scattering to create, store and retrieve spatially multimode light in warm rubidium-87 vapors. The light is created in a spontaneous Stokes scattering pro…
High-fidelity spatially resolved multiphoton counting for quantum imaging applications
Radoslaw Chrapkiewicz, Wojciech Wasilewski, Konrad Banaszek
We present a method for spatially resolved multiphoton counting based on an intensified camera with the retrieval of multimode photon statistics fully accounting for non-linearitie…
Multimode Spontaneous Parametric Down-Conversion in the Lossy Medium
Radoslaw Chrapkiewicz, Wojciech Wasilewski
We study the process of multimode Spontaneous Parametric Down--Conversion (SPDC) in the lossy, one dimensional waveguide. We propose a description using first order Correlation Fun…