Results 11 to 20 of about 5,194,279 (273)

Polarization-controlled quasi-phase-matching of high harmonic generation

EPJ Web of Conferences, 2013
A new class of quasi-phase matching high harmonic generation is proposed where the polarization of the driving field is controlled in a waveguide. The first circularly polarized quasi-phase matched source is shown to be possible.
Hooker S. M., O’Keeffe K, Liu L. Z.
doaj   +3 more sources

Quadratic Cascading in Quasi-Phase-Matching: An Alternative Route to Efficient Third-Harmonic Generation [PDF]

Electronics
We report on the theoretical/numerical investigation of simultaneous second- and third-harmonic generation from a single wavelength input in quasi-phase-matched crystals.
Usman Sapaev, Gaetano Assanto
exaly   +3 more sources

Application of Quasi-Phase Matching Concept for Enhancement of High-Order Harmonics of Ultrashort Laser Pulses in Plasmas

Applied Sciences, 2019
Novel methods of coherent short-wavelength sources generation require thorough analysis for their further amendments and practical implementations. In this work, we report on the quasi-phase matching (QPM) of high-order harmonics generation during the ...
R. A. Ganeev, S. Y. Stremoukhov, A. V. Andreev, A. S. Alnaser   +3 more
doaj   +3 more sources

Generalized 3D quasi-phase-matching model of image contrast in second harmonic generation microscopy of fibrillar collagen architectures. [PDF]

JPhys Photonics
Shelton EM, Campagnola PJ.
europepmc   +2 more sources

Simulation of Ultra-Short Laser Pulses Propagation and Ionization in Dual-Gas-Cells to Enhance the Quasi-Phase Matching of Harmonics Generation in Plasmas

Journal of Mathematical and Fundamental Sciences
A numerical model was designed and implemented to investigate the influence of plasma defocusing on laser characteristics. The effects of plasma defocusing were investigated by studying beam divergence, intensity reduction, and blue shifting.
Wameedh Adress
doaj   +3 more sources

Free-space quasi-phase matching [PDF]

, 2022
We report a new approach to phase matching of nonlinear materials based on the free space multipass cells. This concept quasi-phase matches crystalline quartz and increases the second harmonic generation efficiency by a factor ...
Hariton, Victor, Kovalenko, Nazar, Pronin, Oleg, Fritsch, Kilian   +3 more
core   +3 more sources

Optically Induced Nonlinear Cubic Crystal System for 3D Quasi‐Phase Matching

Advanced Photonics Research, 2022
Quasi‐phase matching (QPM) is a technique in nonlinear optics for achieving efficient energy exchange among optical waves at different frequencies, by spatially modulating the quadratic nonlinearity (χ (2)) of the medium. To realize the full potential of
Yesheng Chen, Chen Yang, Shan Liu, Sen Wang, Ningning Wang, Yongxing Liu, Yan Sheng, Ruwei Zhao, Tianxiang Xu, Wieslaw Krolikowski   +9 more
doaj   +1 more source

Design of quasi-phase-matching nonlinear crystals based on quantum computing

Frontiers in Physics, 2022
Quasi-phase-matching (QPM) makes it possible to design domain engineered nonlinear crystals for highly efficient and multitasking nonlinear frequency conversion.
Zihua Zheng, Sijie Yang, Derryck T. Reid, Zhiyi Wei, Zhiyi Wei, Jinghua Sun   +5 more
doaj   +1 more source

Angular Quasi-Phase-Matching in Periodically Poled Uniaxial and Biaxial Crystals

Crystals, 2022
This article deals with a general description of Angular Quasi-Phase-Matching (AQPM) in uniaxial and biaxial crystals for second-order nonlinear optical interactions.
Yannick Petit, Alexandra Peña, Simon Joly, Dazhi Lu, Patricia Segonds, Benoît Boulanger   +5 more
doaj   +1 more source

Microfluidic devices for quasi-phase-matching in high-order harmonic generation

APL Photonics, 2022
The development of bright eXtreme UltraViolet (XUV) and soft x-ray sources based on high-order harmonic generation is boosting advances toward understanding the behavior of matter on the attosecond timescale.
A. G. Ciriolo, R. Martínez Vázquez, G. Crippa, M. Devetta, D. Faccialà, P. Barbato, F. Frassetto, M. Negro, F. Bariselli, L. Poletto, V. Tosa, A. Frezzotti, C. Vozzi, R. Osellame, S. Stagira   +14 more
doaj   +1 more source