Spatial Wavefunction Characterization of Femtosecond Pulses at Single-Photon Level
Reading quantum information of single photons is commonly realized by quantum tomography or the direct (weak) measurement approach. However, these methods are time-consuming and face enormous challenges in characterizing single photons from an ultrafast light source due to the stringent temporal mod...
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American Association for the Advancement of Science
2020-01-01
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doaj-ddbae3c134c54388b89b0bd8c3a8d3e32020-11-25T03:56:26ZengAmerican Association for the Advancement of ScienceResearch2639-52742020-01-01202010.34133/2020/2421017Spatial Wavefunction Characterization of Femtosecond Pulses at Single-Photon LevelBilly Lam0Mohamed ElKabbash1Jihua Zhang2Chunlei Guo3The Institute of Optics,University of Rochester,Rochester,New York 14627,USAThe Institute of Optics,University of Rochester,Rochester,New York 14627,USAThe Institute of Optics,University of Rochester,Rochester,New York 14627,USAThe Institute of Optics,University of Rochester,Rochester,New York 14627,USAReading quantum information of single photons is commonly realized by quantum tomography or the direct (weak) measurement approach. However, these methods are time-consuming and face enormous challenges in characterizing single photons from an ultrafast light source due to the stringent temporal mode matching requirements. Here, we retrieve the spatial wavefunction of indistinguishable single photons from both a continuous wave source and a femtosecond light source using a self-referencing interferometer. Our method only requires nine ensemble-averaged measurements. This technique simplifies the measurement procedure of single-photon wavefunction and automatically mode matches each self-interfering single photon temporally, which enables the measurement of the spatial wavefunction of single photons from an ultrafast light source.http://dx.doi.org/10.34133/2020/2421017 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Billy Lam Mohamed ElKabbash Jihua Zhang Chunlei Guo |
spellingShingle |
Billy Lam Mohamed ElKabbash Jihua Zhang Chunlei Guo Spatial Wavefunction Characterization of Femtosecond Pulses at Single-Photon Level Research |
author_facet |
Billy Lam Mohamed ElKabbash Jihua Zhang Chunlei Guo |
author_sort |
Billy Lam |
title |
Spatial Wavefunction Characterization of Femtosecond Pulses at Single-Photon Level |
title_short |
Spatial Wavefunction Characterization of Femtosecond Pulses at Single-Photon Level |
title_full |
Spatial Wavefunction Characterization of Femtosecond Pulses at Single-Photon Level |
title_fullStr |
Spatial Wavefunction Characterization of Femtosecond Pulses at Single-Photon Level |
title_full_unstemmed |
Spatial Wavefunction Characterization of Femtosecond Pulses at Single-Photon Level |
title_sort |
spatial wavefunction characterization of femtosecond pulses at single-photon level |
publisher |
American Association for the Advancement of Science |
series |
Research |
issn |
2639-5274 |
publishDate |
2020-01-01 |
description |
Reading quantum information of single photons is commonly realized by quantum tomography or the direct (weak) measurement approach. However, these methods are time-consuming and face enormous challenges in characterizing single photons from an ultrafast light source due to the stringent temporal mode matching requirements. Here, we retrieve the spatial wavefunction of indistinguishable single photons from both a continuous wave source and a femtosecond light source using a self-referencing interferometer. Our method only requires nine ensemble-averaged measurements. This technique simplifies the measurement procedure of single-photon wavefunction and automatically mode matches each self-interfering single photon temporally, which enables the measurement of the spatial wavefunction of single photons from an ultrafast light source. |
url |
http://dx.doi.org/10.34133/2020/2421017 |
work_keys_str_mv |
AT billylam spatialwavefunctioncharacterizationoffemtosecondpulsesatsinglephotonlevel AT mohamedelkabbash spatialwavefunctioncharacterizationoffemtosecondpulsesatsinglephotonlevel AT jihuazhang spatialwavefunctioncharacterizationoffemtosecondpulsesatsinglephotonlevel AT chunleiguo spatialwavefunctioncharacterizationoffemtosecondpulsesatsinglephotonlevel |
_version_ |
1715082308375019520 |