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Topic: Quasi-phase-matching

    Note: these results are not from the primary (high quality) database.

Martin M. Fejer -- Publications Charbonneau-Lefort, M.M. Fejer, and B. Afeyan,"Tandem chirped quasi-phase-matching grating optical parametric amplifier design for simultaneous group delay and gain control", OPTICS LETTERS, No. G. Imeshev, M. Proctor, and M. Fejer, "Lateral Patterning of Nonlinear Frequency Conversion with Transversely Varying Quasi-Phase-Matching Gratings", Opt. Jaesuk Hwang, Martin M. Fejer, and W.E. Moerner, "Exploring Novel Methods of Interferometric Detection of Ultrasmall Phase Shifts", SPIE Proceedings on Manipulation and Analysis of Biomolecules, Cells, and Tissues, vol.4962, no.1(SPIE, San Jose, January 2003), 110-120. cgi.stanford.edu /group/fejer/cgi-bin/fejerpubs_new.php

Nonlinear Optics A second technique for achieving phase matching in nonlinear optics is to modulate the nonlinearity periodically in one dimension.The resulting grating can be used to compensate for the wave vector mismatch in a way that is called quasi-phase matching(QPM). The common technique that is used to satisfy the phase-matching condition take advantage of the natural birefringence of anisotropic crystals, but it remains quite a stringent condition. It should also be emphasized that many of the effects observed in nonlinear optics, such as the Raman scattering, were observed much earlier in the microwave range. dar.ju.edu.jo /mansour/optical/NLO.htm

Encyclopedia of Laser Physics and Technology - articles beginning with the letter Nonlinear optics: nonlinear crystal materials, frequency doubling, sum- and difference frequency generation, optical parametric oscillators, parametric generators and amplifiers, Brillouin and Raman scattering, self- and cross-phase modulation, four-wave mixing, quasi-phase matching General optics: Kramers-Krönig relations, Gaussian beams, Gouy phase shift, beam quality, brightness, cavities, waveguide dispersion, finesse, coherence, phase velocity and group velocity, superluminal transmission and causality, optical metrology Noise in optics: noise specifications, power spectral density, timing jitter, quantum noise, squeezed states of light, shot noise, phase noise, linewidth www.rp-photonics.com /encyclopedia.html   (647 words)

CiteULike: Bogoliubov dispersion relation for a 'photon fluid': Is this a superfluid? bose-einstein-condensate carbon-disulfide chaos cross-phase-modulation dispersion distributed-feedback-laser electromagnetics entanglement filamentation fluid-dynamics four-wave-mixing frequency-comb ginzburg-landau-equation hawking-radiation hong-ou-mandel matter-wave metaphoric-optical-computing modulation-instability negative-refractive-index nonlinear-optics nonlinear-schrodinger-equation optical-parametric-amplification optical-parametric-oscillation optical-phase-conjugation optical-switch optics photonic-crystal physics quantum-optics quasi-phase-matching second-harmonic-generation self-phase-modulation slow-light soliton spontaneous-parametric-down-conversion superfluid superluminality three-wave-mixing time-reversal turbulence ultrafast-optics vortex This implies the existence of a Bogoliubov dispersion relation for the low-lying elementary excitations of the photon fluid, and in particular, that sound waves exist for long-wavelength, low-frequency disturbances of this fluid. Bogoliubov dispersion relation for a 'photon fluid': Is this a superfluid? www.citeulike.org /user/mankei/article/262225   (253 words)

IngentaConnect Near- and far-field second-harmonic imaging of quasi-phase-matchi... Near- and far-field second-harmonic imaging of quasi-phase-matching crystals IngentaConnect Near- and far-field second-harmonic imaging of quasi-phase-matchi... This has been done in order to reveal the walls that form the intersections between inverted and non-inverted crystal domains. www.ingentaconnect.com /content/bsc/jms/2001/00000202/00000001/art00807   (253 words)

Characterisation of nonlinear conversion and crystal quality in Nd- and Yb-doped YAB By imaging the nonlinear conversion using a CCD camera we observe phase matching characteristics similar to that obtained in quasi-phase-matched crystals. Variable crystal quality affects the laser performance of many self-frequency doubling crystals, particularly those of the yttrium aluminum borate family. In this report we characterize nonlinear frequency conversion in Yb:YAB and demonstrate a simple non-destructive technique for measuring crystal quality. www.opticsexpress.org /abstract.cfm?URI=OPEX-12-24-5922   (671 words)

Encyclopedia of Laser Physics and Technology - overview Nonlinear optics: nonlinear crystal materials, frequency doubling, sum- and difference frequency generation, optical parametric oscillators, parametric generators and amplifiers, Brillouin and Raman scattering, self- and cross-phase modulation, four-wave mixing, quasi-phase matching Optical devices and optoelectronics: interferometers, Bragg mirrors, beam shapers, optical filters, avalanche photodiodes, electro-optic modulators, acousto-optic modulators, optical tweezers, arrayed waveguide gratings, integrating spheres, mode cleaner cavities, Lyot filters, integrated optics www.rp-photonics.com /encyclopedia.html   (480 words)

Encyclopedia of Laser Physics and Technology - Q switching, quantum cascade lasers, quantum dots, quantum noise, quasi-phase matching Encyclopedia of Laser Physics and Technology - Q switching, quantum cascade lasers, quantum dots, quantum noise, quasi-phase matching Rüdiger Paschotta, explains basic terms and principles of laser physics and technology, with additional content from other topics such as general optics, nonlinear optics, fiber optics, quantum optics, optical fiber communications and optoelectronics. www.rp-photonics.com /encyclopedia_q.html   (135 words)

SC153.aspx Quasi-phase matching (QPM) is emerging as a dominant technology for nonlinear optical frequency conversion in the visible and near-IR. Smith is the author over 100 journal and conference papers in the area of QPM materials, and is the founder of Stratophase Ltd., a start-up company in the UK, that is commercialising periodically poled QPM materials. The commercial and scientific uses of QPM devices will be reviewed, and, finally, the market potential of QPM devices will be discussed. www.cleoconference.org /Conference_Program/SC153.aspx   (443 words)

Encyclopedia of Laser Physics and Technology - Q switching, quantum cascade lasers, quantum dots, quantum noise, quasi-phase matching Encyclopedia of Laser Physics and Technology - Q switching, quantum cascade lasers, quantum dots, quantum noise, quasi-phase matching Rüdiger Paschotta, explains basic terms and principles of laser physics and technology, with additional content from other topics such as general optics, nonlinear optics, fiber optics, quantum optics, optical fiber communications and optoelectronics. www.rp-photonics.com /encyclopedia_q.html   (135 words)

The Lasers and Lidar Group KTP can be periodically poled for the quasi-phase matching and the pump, signal, and idler fields intensities can be kept large over the interaction length through waveguide confinement. However, the doubly resonant cavity configuration is not stable and is difficult to tune. Using a singly resonant cavity will alleviate these problems, but the lasing threshold for the parametric oscillator becomes to high to be pumped with diode lasers. www.physics.montana.edu /optics/jlc/nonlinear.html   (402 words)

Waveguide fabrication using organic nonlinear optical materials By periodical alternating combination of the waveguide with that of UV-cured epoxy resin which has the same refractive index as that of the bis-azo-dye attached polymer, a quasi-phase-matching (QPM) waveguide was fabricated. To solve a problem of the crystal, i.e., the crystal with water is inactive for second-order optical nonlinearity, a specific photo-process was proposed and a ridge waveguide was fabricated using the photo-process combined with a reactive ion etching. Organic and polymeric waveguides with optical nonlinearity will be discussed which include electro-optic polymer waveguides and an organic crystal waveguide. www.na.infn.it /amalfi99/abstract_Kaino.htm   (241 words)

Cobolt - laser design and nonlinear optics Our expertise lies in the very core of efficient laser technology—achieving quasi-phase-matching through our proprietary technology for periodically poled nonlinear materials and their use. It also allows access to a large number of fixed wavelengths in the visible spectral region and unique possibilities to generate multiple spectral lines from one laser. Our design for diode-pumped solid-state lasers (DPSSL) with PPKTP crystals as nonlinear optical material provides flexible power scaling, excellent beam quality and high level of intensity stability. www.cobolt.se   (182 words)

Encyclopedia of Laser Physics and Technology - Q switching, quantum cascade lasers, quantum dots, quantum noise, quasi-phase matching Encyclopedia of Laser Physics and Technology - Q switching, quantum cascade lasers, quantum dots, quantum noise, quasi-phase matching There is a variety of various services available in topical areas such as lasers, laser amplifiers, nonlinear optics, fiber optics, multilayer mirrors, noise and fluctuations, and other topics in photonics and optoelectronics. Rüdiger Paschotta, explains basic terms and principles of laser physics and technology, with additional content from other topics such as general optics, nonlinear optics, fiber optics, quantum optics, optical fiber communications and optoelectronics. www.rp-photonics.com /encyclopedia_q.html   (182 words)

Dr. Yanqing Lu A scheme to realize three-fundamental-colors laser based on quasi-phase matching Yan-qing Lu, Ya-lin Lu, Chen-chen Xue, Jian-jun Zheng, Xiang-fei Chen, Gui-peng Luo, Nai-ben Ming, Bao-hua Feng and Xiu-lan Zhang Yong-yuan Zhu, Xue-jin Zhang, Yan-qing Lu, Yan-feng Chen, Shi-ning Zhu, and Nai-ben Ming students.creol.ucf.edu /yqlu/files/CV.htm   (182 words)

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