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Wavefront-modulated four-wave mixing interferometry with silicon checkerboard gratings

Title
Wavefront-modulated four-wave mixing interferometry with silicon checkerboard gratings
Authors
Kim, H[Kim, Hyunmin]Jeong, SM[Jeong, Soon Moon]
DGIST Authors
Kim, H[Kim, Hyunmin]Jeong, SM[Jeong, Soon Moon]
Issue Date
2015-01
Citation
Applied Physics B: Lasers and Optics, 118(1), 39-45
Type
Article
Article Type
Article
Keywords
Computationally EfficientFocal FieldsFour Wave MixingInterference ConditionModulated BeamsNon-Linear OpticalNon-Linear OpticsPhase ModulatedPhase ModulationSize DependentSpatial FiltersWavefronts
ISSN
0946-2171
Abstract
Nonlinear optical FWM generation was studied using a wavefront-modulated beam to understand how emissions adapt under additional interference. Size-dependent circular π-phase-modulated masks were applied to create stepwise, z-directionally elongated, bottleneck-shaped FWM foci as schematic interference conditions. The polarizing FWM features varied dramatically as the circular mask size approached 0.35 times the beam barrel, resulting in the convergence of two inherently paired emissions without significant contrast at the edges. The results were reproduced through kernel-type filtering using two-dimensional nonlinear spatial filters with computationally efficient focal field calculations. © 2014, Springer-Verlag Berlin Heidelberg.
URI
http://hdl.handle.net/20.500.11750/2353
DOI
10.1007/s00340-014-5951-6
Publisher
Springer
Related Researcher
Files:
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Collection:
Smart Textile Convergence Research Group1. Journal Articles


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