Results 11 to 20 of about 51,919 (307)

Counting Photons in the Λ-Experiment [PDF]

open access: yesOpen Systems & Information Dynamics, 2002
Dehmelt's Λ-experiment for a three-level atom with simultaneously driven strong and weak transition is studied within quantum stochastic calculus approach. The statistics of the emitted photons is found by the method of generating functional of the corresponding two-dimensional output counting process.
openaire   +3 more sources

Simulation of Target Tracking based on Photon-counting Laser Ranging System

open access: yesGuangtongxin yanjiu, 2022
As the single photon detection greatly improves the sensitivity of a traditional detector, it has enormous potentiality in distance measuring. Photon-counting laser ranging is able to extract the target's trajectory from large amounts of echo information
JIANG Yan   +5 more
doaj   +3 more sources

Efficient and Noise Robust Photon-Counting Imaging with First Signal Photon Unit Method

open access: yesPhotonics, 2021
Efficient photon-counting imaging in low signal photon level is challenging, especially when noise is intensive. In this paper, we report a first signal photon unit (FSPU) method to rapidly reconstruct depth image from sparse signal photon counts with ...
Kangjian Hua   +4 more
doaj   +1 more source

Subcentimeter depth resolution using a single-photon counting time-of-flight laser ranging system at 1550 nm wavelength [PDF]

open access: yes, 2007
We demonstrate subcentimeter depth profiling at a stand off distance of 330m using a time-of-flight approach based on time-correlated single-photon counting.
Nam, Sae Woo   +13 more
core   +1 more source

Synchronous Clock Recovery of Photon-Counting Underwater Optical Wireless Communication Based on Deep Learning

open access: yesPhotonics, 2022
In photon-counting underwater optical wireless communication (UOWC), the recovery of the time slot synchronous clock is extremely important, and it is the basis of symbol synchronization and frame synchronization.
Haodong Yang   +5 more
doaj   +1 more source

Single photon source characterization with a superconducting single photon detector [PDF]

open access: yes, 2005
Superconducting single photon detectors (SSPD) based on nanopatterned niobium nitride wires offer single photon counting at fast rates, low jitter, and low dark counts, from visible wavelengths well into the infrared.
Mirin, R.P.   +6 more
core   +1 more source

Superconducting nanowire single-photon detectors: physics and applications [PDF]

open access: yes, 2012
Single-photon detectors based on superconducting nanowires (SSPDs or SNSPDs) have rapidly emerged as a highly promising photon-counting technology for infrared wavelengths.
Hadfield, Robert H   +5 more
core   +1 more source

Ultra-Fast Single-Photon Counting with Waveguide-Integrated Detectors for Quantum Technologies

open access: yes, 2022
With recent advances in quantum technologies for applications such as communication, cryptography, computing, metrology and sensing, the performance and scalability of single-photon detection as a vital key component is becoming increasingly important ...
Perlot, Nicolas   +15 more
core   +1 more source

Three-Dimensional Digital Zooming of Integral Imaging under Photon-Starved Conditions

open access: yesSensors, 2023
In this paper, we propose new three-dimensional (3D) visualization of objects at long distance under photon-starved conditions. In conventional three-dimensional image visualization techniques, the visual quality of three-dimensional images may be ...
Gilsu Yeo, Myungjin Cho
doaj   +1 more source

Photon Counting Based on Solar-Blind Ultraviolet Intensified Complementary Metal-Oxide-Semiconductor (ICMOS) for Corona Detection

open access: yesIEEE Photonics Journal, 2018
For the detection of weak signals, photon counting technology has attracted much attention. In this paper, a method based on photon counting is experimentally demonstrated to realize corona discharge detection at solar-blind ultraviolet (UV) wavelength ...
Yan Wang, Yunsheng Qian, Xiangyu Kong
doaj   +1 more source

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