Ghost imaging in the spectral domain (Conference Presentation)

2019 ◽  
Author(s):  
Goëry Genty ◽  
Caroline Amiot ◽  
Piotr Ryczkowski ◽  
Ari T. Friberg ◽  
John M. Dudley
Keyword(s):  
Spectral Domain ◽  
Ghost Imaging

scholarly journals Experimental demonstration of spectral domain computational ghost imaging

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Piotr Ryczkowski ◽  
Caroline G. Amiot ◽  
John M. Dudley ◽  
Goëry Genty
Keyword(s):  
Signal To Noise Ratio ◽  
Michelson Interferometer ◽  
Spectral Domain ◽  
Proof Of Concept ◽  
Ghost Imaging ◽  
Spectral Measurements ◽  
Spectral Filter ◽  
Wavelength Division ◽  
Spectral Encoding ◽  
Light Effects

AbstractWe demonstrate computational spectral-domain ghost imaging by encoding complementary Fourier patterns directly onto the spectrum of a superluminescent laser diode using a programmable spectral filter. Spectral encoding before the object enables uniform spectral illumination across the beam profile, removing the need for light collection optics and yielding increased signal-to-noise ratio. In addition, the use of complementary Fourier patterns allows reduction of deleterious of parasitic light effects. As a proof-of-concept, we measure the wavelength-dependent transmission of a Michelson interferometer and a wavelength-division multiplexer. Our results open new perspectives for remote broadband spectral measurements.

scholarly journals Time-Resolved Pump-Probe Spectroscopy with Spectral Domain Ghost Imaging

2020 ◽  
Author(s):  
Siqi Li ◽  
Taran Driver ◽  
Oliver Alexander ◽  
Bridgette Cooper ◽  
Douglas Garratt ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Pump Pulse ◽  
Chemical Bonding ◽  
Atomic Level ◽  
Spectral Domain ◽  
Ghost Imaging ◽  
Time Resolved ◽  
Pump Probe ◽  
Probe Spectroscopy

An atomic-level picture of molecular and bulk processes, such as chemical bonding and charge transfer, necessitatesanunderstandingofthedynamicalevolutionofthesesystems. Ontheultrafasttimescalesassociatedwithnuclearandelectronicmotion,thetemporalbehaviourofasystem is often interrogated in a ‘pump-probe’ scheme. Here, an initial ‘pump’ pulse triggers...

Supercontinuum spectral-domain ghost imaging

2018 ◽  
Vol 43 (20) ◽  
pp. 5025 ◽  
Author(s):  
Caroline Amiot ◽  
Piotr Ryczkowski ◽  
Ari T. Friberg ◽  
John M. Dudley ◽  
Goëry Genty
Keyword(s):  
Spectral Domain ◽  
Ghost Imaging

AUTOMATIC ESTIMATION OF SPATIALLY CORRELATED NOISE VARIANCE IN SPECTRAL DOMAIN FOR IMAGES

2014 ◽  
Vol 73 (6) ◽  
pp. 511-527 ◽  
Author(s):  
V.V. Abramova ◽  
S. K. Abramov ◽  
V. V. Lukin ◽  
A. A. Roenko ◽  
Benoit Vozel
Keyword(s):  
Spectral Domain ◽  
Correlated Noise ◽  
Noise Variance ◽  
Spatially Correlated ◽  
Automatic Estimation ◽  
Spatially Correlated Noise

Astrophysical Space Mission Astron-2 for an All-Sky Survey in the Ultraviolet Spectral Domain

2019 ◽  
Vol 53 (7) ◽  
pp. 560-566
Author(s):  
M. E. Sachkov ◽  
I. S. Savanov ◽  
B. M. Shustov ◽  
A. S. Shugarov ◽  
S. G. Sichevskij
Keyword(s):  
Space Mission ◽  
Spectral Domain ◽  
Sky Survey
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