Novel phase-matching concept for polymer waveguides

1993 ◽  
Author(s):  
Toshiyuki Watanabe ◽  
Xu Tang Tao ◽  
D. Zhou ◽  
S. Shimoda ◽  
Hiroaki Usui ◽  
...  
Keyword(s):  
Phase Matching ◽  
Polymer Waveguides ◽  
Matching Concept

scholarly journals Polymer waveguides with optimized overlap integral for modal dispersion phase-matching

1997 ◽  
Vol 70 (25) ◽  
pp. 3347-3349 ◽  
Author(s):  
W. Wirges ◽  
S. Yilmaz ◽  
W. Brinker ◽  
S. Bauer-Gogonea ◽  
S. Bauer ◽  
...  
Keyword(s):  
Phase Matching ◽  
Polymer Waveguides ◽  
Dispersion Phase ◽  
Overlap Integral ◽  
Modal Dispersion

Failure of phase-matching concept in large-signal parametric frequency conversion

1998 ◽  
Vol 72 (2) ◽  
pp. 150-152 ◽  
Author(s):  
S. Trillo ◽  
G. Millot ◽  
E. Seve ◽  
S. Wabnitz
Keyword(s):  
Frequency Conversion ◽  
Phase Matching ◽  
Large Signal ◽  
Matching Concept ◽  
Parametric Frequency

A New Method to Fabricate Polymer Waveguides

PIERS Online ◽  
2005 ◽  
Vol 1 (1) ◽  
pp. 92-95 ◽  
Author(s):  
Wei-Ching Chuang ◽  
Chi-Ting Ho ◽  
Ruey Fang Shyu
Keyword(s):  
New Method ◽  
Polymer Waveguides

scholarly journals High Field Single- to Few-Cycle THz Generation with Lithium Niobate

Photonics ◽  
2021 ◽  
Vol 8 (6) ◽  
pp. 183
Author(s):  
Xing Zhu ◽  
David R. Bacon ◽  
Julien Madéo ◽  
Keshav M. Dani
Keyword(s):  
Lithium Niobate ◽  
Condensed Matter ◽  
High Harmonic ◽  
Nonlinear Spectroscopy ◽  
Optical Rectification ◽  
Phase Matching ◽  
Nonlinear Phenomena ◽  
Generation Efficiency ◽  
Basic Principles ◽  
Thz Generation

The transient terahertz (THz) pulse with high peak field has become an important tool for matter manipulation, enabling many applications such as nonlinear spectroscopy, particle acceleration, and high harmonic generation. Among the widely used THz generation techniques, optical rectification in lithium niobate (LN) has emerged as a powerful method to achieve high fields at low THz frequencies, suitable to exploring novel nonlinear phenomena in condensed matter systems. In this review, we focus on introducing single- to few-cycle THz generation in LN, including the basic principles, techniques, latest developments, and current limitations. We will first discuss the phase matching requirements of LN, which leads to Cherenkov-like radiation, and the tilted pulse front (TPF) technique. Emphasis will be put on the TPF technique, which has been shown to improve THz generation efficiency, but still has many limitations. Different geometries used to produce continuous and discrete TPF will be systematically discussed. We summarize the advantages and limitations of current techniques and future trends.

scholarly journals Laser Pulse Shortening via Zero-Dispersion Phase Matching of Parametric Raman Interactions in Crystals

Crystals ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 19
Author(s):  
Sergei N. Smetanin ◽  
Michal Jelínek ◽  
Dmitry P. Tereshchenko ◽  
Mikhail N. Ershkov ◽  
Václav Kubeček
Keyword(s):  
Laser Pulse ◽  
Short Pulse ◽  
Matching Condition ◽  
Phase Matching ◽  
Dispersion Phase ◽  
Birefringent Crystal ◽  
Raman Lasers ◽  
Birefringent Crystals ◽  
Phase Matching Condition ◽  
Ultra Short Pulse

We propose and study the conditions of zero-dispersion phase matching for parametric Raman interactions in birefringent crystals differing by anisotropy of zero-dispersion wavelength and allowing for the spectral tuning of the zero-dispersion phase-matching condition. We choose a highly birefringent crystal of calcite having a wide zero-dispersion anisotropy range for the demonstration of new effects of laser pulse shortening in parametric Raman lasers with spectrally tunable zero-dispersion phase matching. We demonstrate the anti-Stokes (1168 nm) and multi-Stokes (1629 nm) picosecond pulse shortening and self-separation of single 80-ps ultra-short pulse from the zero-dispersion phase-matched parametric Raman lasers that are based on the calcite crystal without using any electro-optical device.

Large Field-of-View Super-Resolution Optical Microscopy Based on Planar Polymer Waveguides

ACS Photonics ◽  
2021 ◽  
Author(s):  
Anders Kokkvoll Engdahl ◽  
Stefan Belle ◽  
Tung-Cheng Wang ◽  
Ralf Hellmann ◽  
Thomas Huser ◽  
...  
Keyword(s):  
Optical Microscopy ◽  
Super Resolution ◽  
Field Of View ◽  
Large Field ◽  
Polymer Waveguides
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