نتایج جستجو برای: demolition photon counting

تعداد نتایج: 108738  

Journal: :Applied Physics Letters 2023

We demonstrate photon-counting single-pixel imaging in the ultraviolet region. Toward this target, we develop a high-performance compact single-photon detector based on 4H-SiC avalanche diode (SPAD), where tailored readout circuit with active hold-off time is designed to restrain noise and operate SPAD free-running mode. use structured illumination reconstruct 192 × compressed images at 4 fps f...

Journal: :Science Advances 2021

The readout of digital data from an optical memory is enhanced by quantum-correlated light and photon-counting measurements.

Journal: :Optics letters 2004
Marius A Albota Franco N C Wong

We demonstrate efficient single-photon detection at 1.55 microm by means of sum-frequency mixing with a strong pump at 1.064 microm in periodically poled lithium niobate followed by photon counting in the visible region. This scheme offers significant advantages over existing InGaAs photon counters: continuous-wave operation, higher detection efficiency, higher counting rates, and no afterpulsi...

Journal: :Optics letters 2006
Bryan S Robinson Andrew J Kerman Eric A Dauler Richard J Barron David O Caplan Mark L Stevens John J Carney Scott A Hamilton Joel K W Yang Karl K Berggren

We demonstrate 1550 nm photon-counting optical communications with a NbN-nanowire superconducting single-photon detector. Source data are encoded with a rate-1/2 forward-error correcting code and transmitted by use of 32-ary pulse-position modulation at 5 and 10 GHz slot rates. Error-free performance is obtained with -0.5 detected photon per source bit at a source data rate of 781 Mbits/s. To t...

Journal: :Optics express 2003
Michael Wahl Ingo Gregor Mattias Patting Jörg Enderlein

Fluorescence correlation spectroscopy (FCS) is a powerful spectroscopic technique for studying samples at dilute fluorophore concentrations down to single molecules. The standard way of data acquisition, at such low concentrations, is an asynchronous photon counting mode that generates data only when a photon is detected. A significant problem is how to efficiently convert such asynchronously r...

2016
Matteo Perenzoni Lucio Pancheri David Stoppa

This paper reviews the state of the art of single-photon avalanche diode (SPAD) image sensors for time-resolved imaging. The focus of the paper is on pixel architectures featuring small pixel size (<25 μm) and high fill factor (>20%) as a key enabling technology for the successful implementation of high spatial resolution SPAD-based image sensors. A summary of the main CMOS SPAD implementations...

Journal: :Optics express 2013
Gregory A. Howland Daniel J. Lum Matthew R. Ware John C. Howell

We demonstrate a compressed sensing, photon counting lidar system based on the single-pixel camera. Our technique recovers both depth and intensity maps from a single under-sampled set of incoherent, linear projections of a scene of interest at ultra-low light levels around 0.5 picowatts. Only two-dimensional reconstructions are required to image a three-dimensional scene. We demonstrate intens...

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