scholarly journals Coherent polarization locking of multimode beams in a diode bar

2011 ◽  
Author(s):  
P. Purnawirman ◽  
P. B. Phua
Keyword(s):  
Multimode Beams

Double pulse laser induced breakdown spectroscopy with Gaussian and multimode beams

2016 ◽  
Vol 124 ◽  
pp. 47-55 ◽  
Author(s):  
V.N. Lednev ◽  
S.M. Pershin ◽  
A.F. Bunkin ◽  
A.A. Samokhvalov ◽  
V.P. Veiko ◽  
...  
Keyword(s):  
Pulse Laser ◽  
Double Pulse ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Multimode Beams ◽  
Double Pulse Laser

Three Wave Mixing for Multimode Beams

1990 ◽  
pp. 77-82
Author(s):  
Y. B. Band ◽  
D. F. Heller ◽  
J. S. Krasinski
Keyword(s):  
Wave Mixing ◽  
Multimode Beams

scholarly journals Incoherently coupled screening soliton pairs composed of spatially incoherent multimode beams

2004 ◽  
Vol 53 (9) ◽  
pp. 2980
Author(s):  
Chen Yuan-Yuan ◽  
Wang Qi ◽  
Shi Jie-Long
Keyword(s):  
Multimode Beams

scholarly journals Non-classical Signature of Parametric Fluorescence and its Application in Metrology

2014 ◽  
Vol 14 (4) ◽  
pp. 227-236 ◽  
Author(s):  
M. Hamar ◽  
V. Michálek ◽  
A. Pathak
Keyword(s):  
Numerical Simulations ◽  
Photon Number ◽  
Theoretical Background ◽  
Iccd Camera ◽  
Parametric Down Conversion ◽  
Light Beams ◽  
Down Conversion ◽  
Theoretical Results ◽  
Multimode Beams

Abstract The article provides a short theoretical background of what the non-classical light means. We applied the criterion for the existence of non-classical effects derived by C.T. Lee on parametric fluorescence. The criterion was originally derived for the study of two light beams with one mode per beam. We checked if the criterion is still working for two multimode beams of parametric down-conversion through numerical simulations. The theoretical results were tested by measurement of photon number statistics of twin beams emitted by nonlinear BBO crystal pumped by intense femtoseconds UV pulse. We used ICCD camera as the detector of photons in both beams. It appears that the criterion can be used for the measurement of the quantum efficiencies of the ICCD cameras.

scholarly journals Quantum enhanced imaging of nonuniform refractive profiles

2019 ◽  
Vol 17 (08) ◽  
pp. 1941010 ◽  
Author(s):  
Giuseppe Ortolano ◽  
Ivano Ruo-Berchera ◽  
Enrico Predazzi
Keyword(s):  
The Other ◽  
Quantum Metrology ◽  
Experimental Demonstration ◽  
Similar Model ◽  
Spatial Profile ◽  
Parametric Down Conversion ◽  
Twin Beam ◽  
Down Conversion ◽  
Multimode Beams ◽  
Enhanced Imaging

In this work, quantum metrology techniques are applied to the imaging of objects with a nonuniform refractive spatial profile. A sensible improvement on the classical accuracy is shown to be found when the “Twin Beam (TWB) State” is used. In particular, exploiting the multimode spatial correlation, naturally produced in the Parametric Down Conversion (PDC) process, allows a 2D reconstruction of complex spatial profiles, thus enabling an enhanced imaging. The idea is to use one of the spatially multimode beams to probe the sample and the other as a reference to reduce the noise. A similar model can also be used to describe wave front distortion measurements. The model is meant to be followed by a first experimental demonstration of such enhanced measurement scheme.

BER evaluations for multimode beams in underwater turbulence

2016 ◽  
pp. 1-4 ◽  
Author(s):  
Serap Altay Arpali ◽  
Yahya Baykal ◽  
Çağlar Arpali
Keyword(s):  
Multimode Beams

Beam shaping for multimode beams

2001 ◽  
Author(s):  
Lars-Christian Wittig ◽  
Matthias Cumme ◽  
Stefan Nolte ◽  
Ernst-Bernhard Kley ◽  
Andreas Tuennermann
Keyword(s):  
Beam Shaping ◽  
Multimode Beams

Measuring the spatial polarization distribution of multimode beams emerging from passive step-index large-mode-area fibers

2010 ◽  
Vol 35 (20) ◽  
pp. 3429 ◽  
Author(s):  
Daniel Flamm ◽  
Oliver A. Schmidt ◽  
Christian Schulze ◽  
Julia Borchardt ◽  
Thomas Kaiser ◽  
...  
Keyword(s):  
Polarization Distribution ◽  
Large Mode Area ◽  
Step Index ◽  
Mode Area ◽  
Multimode Beams
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