Superresolution in interferometric imaging of strong thermal sources
- URL: http://arxiv.org/abs/2012.14026v3
- Date: Mon, 30 Aug 2021 21:52:49 GMT
- Title: Superresolution in interferometric imaging of strong thermal sources
- Authors: Yunkai Wang, Yujie Zhang, Virginia O. Lorenz
- Abstract summary: We consider the fundamental quantum limit of resolving the transverse separation of two strong thermal point sources using interferometer arrays.
We propose measurement techniques using linear beam splitters and photon-number-resolving detection to achieve our bound.
- Score: 12.758461478708252
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Imaging using interferometer arrays based on the Van Cittert-Zernike theorem
has been widely used in astronomical observation. Recently it was shown that
superresolution can be achieved in this system for imaging two weak thermal
point sources. Using quantum estimation theory, we consider the fundamental
quantum limit of resolving the transverse separation of two strong thermal
point sources using interferometer arrays, and show that the resolution is not
limited by the longest baseline. We propose measurement techniques using linear
beam splitters and photon-number-resolving detection to achieve our bound. Our
results demonstrate that superresolution for resolving two thermal point
sources of any strength can be achieved in interferometer arrays.
Related papers
- Coherence spectroscopy by the Nth power of the measured signal in an interferometer overcoming the diffraction limit [0.0]
Coherence spectroscopy has been intensively studied over the last several decades for various applications in science and engineering.
Here, the Kth power of the measured signal in an N-slit interferometer is studied for enhanced coherence spectroscopy to overcome the resolution limit of the original system.
The Kth power of the intensity beats the resolution limit of the N-slit interferometer, in which the out-of-shelf spectrometer or wavelength meter can be a primary beneficiary.
arXiv Detail & Related papers (2024-05-21T04:04:52Z) - Super-resolution imaging based on active optical intensity interferometry [14.452089688779049]
In contrast to amplitude (phase) interferometry, intensity interferometry exploits the quantum nature of light to measure the photon bunching effect in thermal light.
In outdoor environments, we image two-dimension millimeter-level targets over 1.36 kilometers at a resolution of 14 times the diffraction limit of a single telescope.
arXiv Detail & Related papers (2024-04-24T06:51:01Z) - Broadband biphoton source for quantum optical coherence tomography based on a Michelson interferometer [39.58317527488534]
We describe and experimentally demonstrate a novel technique for generation of a bright collinear biphoton field with a broad spectrum.
As the most straightforward application of the source, we employ Michelson interferometer-based quantum optical coherence tomography (Q OCT)
arXiv Detail & Related papers (2024-01-31T13:52:37Z) - Theoretical framework for real time sub-micron depth monitoring using
quantum inline coherent imaging [55.2480439325792]
Inline Coherent Imaging (ICI) is a reliable method for real-time monitoring of various laser processes, including keyhole welding, additive manufacturing, and micromachining.
The axial resolution is limited to greater than 2 mum making ICI unsuitable for monitoring submicron processes.
Advancements in Quantum Optical Coherence Tomography (Q OCT) has the potential to address this issue by achieving better than 1 mum depth resolution.
arXiv Detail & Related papers (2023-09-17T17:05:21Z) - Super-resolution enhancement in bi-photon spatial mode demultiplexin [0.0]
Imaging systems measuring intensity in the far field succumb to Rayleigh's curse, a resolution limitation dictated by the finite aperture of the optical system.
Many proof-of-principle and some two-dimensional imaging experiments have shown that, by using spatial mode demultiplexing (SPADE), the field information collected is maximal.
arXiv Detail & Related papers (2022-12-20T17:40:46Z) - Interferometric imaging using shared quantum entanglement [0.0]
We report a table-top entanglement-based interferometric imaging technique that utilizes two entangled field modes.
The spatial distribution of a simulated thermal light source is determined by interfering light collected at each aperture.
arXiv Detail & Related papers (2022-12-14T18:25:48Z) - Two-colour spectrally multimode integrated SU(1,1) interferometer [77.34726150561087]
We develop and investigate an integrated multimode two-colour SU (1,1) interferometer that operates in a supersensitive mode.
By ensuring a proper design of the integrated platform, we suppress dispersion and thereby significantly increase the visibility of the interference pattern.
We demonstrate that such an interferometer overcomes the classical phase sensitivity limit for wide parametric gain ranges, when up to $3*104$ photons are generated.
arXiv Detail & Related papers (2022-02-10T13:30:42Z) - Quantifying n-photon indistinguishability with a cyclic integrated
interferometer [40.24757332810004]
We report on a universal method to measure the genuine indistinguishability of n-photons.
Our approach relies on a low-depth cyclic multiport interferometer with N = 2n modes.
We experimentally demonstrate this technique for a 8-mode integrated interferometer fabricated using femtosecond laser micromachining.
arXiv Detail & Related papers (2022-01-31T16:30:52Z) - A quantitative comparison of amplitude versus intensity interferometry
for astronomy [0.0]
We give a comparative analysis of the performance of amplitude and intensity interferometry.
We find that for very small angular separations the large baseline achievable in intensity interferometry can more than compensate for the reduced signal strength.
arXiv Detail & Related papers (2021-06-10T10:24:35Z) - Two-photon resonance fluorescence of two interacting non-identical
quantum emitters [77.34726150561087]
We study a system of two interacting, non-indentical quantum emitters driven by a coherent field.
We show that the features imprinted by the two-photon dynamics into the spectrum of resonance fluorescence are particularly sensitive to changes in the distance between emitters.
This can be exploited for applications such as superresolution imaging of point-like sources.
arXiv Detail & Related papers (2021-06-04T16:13:01Z) - Auto-heterodyne characterization of narrow-band photon pairs [68.8204255655161]
We describe a technique to measure photon pair joint spectra by detecting the time-correlation beat note when non-degenerate photon pairs interfere at a beamsplitter.
The technique is well suited to characterize pairs of photons, each of which can interact with a single atomic species.
arXiv Detail & Related papers (2021-01-08T18:21:30Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.