You may subscribe either as an OSA member, or as an authorized user of your institution. The criterion for all-optical switching through the material is investigated and it is shown that ultra-silicon-rich nitride is a good material in the three-photon absorption region, which spans the entire O- to L- telecommunications bands. A technique based upon the observed interference between resonant and nonresonant three-wave mixing is proposed which is capable, in principle, of determining the true nonlinear index in any transparent material. In the two-photon absorption range, the measured nonlinear coefficients are compared to theoretically calculated values with a simple parabolic band structure. All Rights Reserved, Only if other resources available (images, video, datasets), • Use these formats for best results: Smith or J Smith, Journal of Optical Communications and Networking, Journal of the Optical Society of America A, Journal of the Optical Society of America B, Journal of Display Technology (2005-2016), Journal of the Optical Society of Korea (1997-2016), Journal of Optical Networking (2002-2009), Journal of the Optical Society of America (1917-1983), Conference on Lasers and Electro-Optics (CLEO), Conference on Lasers and Electro-Optics/Pacific Rim, Integrated Photonics Research, Silicon and Nanophotonics, Temperature dependence of index of refraction, reflection, and extinction coefficient of liquid sulfur in the 0.4–2.0-μm wavelength range, Multiple-wavelength ellipsometry in thin uniaxial nonabsorbing films, Index of refraction measurement on sapphire at low temperatures and visible wavelengths, Infrared optical constants of a ternary system of 75% H, Temporal integration of chromatic double pulses for detection of equal-luminance wavelength changes. Cited by links are available to subscribers only. The technique presented here can, in principle, be applied to characterize any type of ultrashort pulse laser system and is essential for pre-pulse reduction. Fitting an ideal sech(2) to the autocorrelation data yields a 4.8-fs pulse duration, whereas reconstruction of the pulse amplitude profile gives 5.8 fs. The measurements are compared with the predictions of an empirical formula derived by Boling, Glass, and Owyoung. Correlation properties of supercontinuum (SC) pulses generated in a bulk medium are investigated by means of second-order coherence theory of non-stationary fields. A, © Copyright 2020 | The Optical Society. Use these formats for best results: Smith or J Smith, Use a comma to separate multiple people: J Smith, RL Jones, Macarthur. Soc. i defined the equation but now i cant figure out how to input the wavelengths in nanometers. You may subscribe either as an OSA member, or as an authorized user of your institution. A 3(12) 2109-2115 (1986). Improve efficiency in your search by using wildcards. En effet, une bonne partie des phénomènes ont lieu durant le passage de l'impulsion laser, c'est-à-dire pendant quelques dizaines de femtosecondes. These promising results are a new step toward the implementation of functional oxides for nonlinear optical applications. 1978 May 15;17(10):1547-9. doi: 10.1364/AO.17.001547. Use quotation marks " " around specific phrases where you want the entire phrase only. Both qualitative and semiquantitative features of the observed phenomena are explained using a theory which shows that the results are consistent with a combination of both electrostrictive and electronic self-focusing mechanisms. Get the latest research from NIH: https://www.nih.gov/coronavirus. USA.gov. Find NCBI SARS-CoV-2 literature, sequence, and clinical content: https://www.ncbi.nlm.nih.gov/sars-cov-2/. A 3(11) 1794-1802 (1986), A. C. DeFranzo and B. G. Pazol Citation lists with outbound citation links are available to subscribers only. What is the speed of light in sapphire? Am. Article level metrics are available to subscribers only. Opt. Appl Opt. The detailed characteristics of the dynamics of the track evolution depend on the temporal shape of the incident laser pulse. This model also accounts quite well for the variation of the hyperpolarizability of both fluorine and oxygen, except for cation partners that have filled or unfilled d-electron shells. *Present address, Division of Applied Physics, CSIRO, P.O. Refractive index of adipose tissue and lipid droplet measured in wide spectral and temperature ranges. The data of index versus temperature were fit to a model and the results of dn/dT versus temperature are given along with certain physical constants that were extracted from the model. less than. Appl. on Mach number of the electron hole does not vanish even in the presence of the electron beam. La compréhension et la quantification des processus élémentaires ayant lieu durant l'interaction requiert donc de concevoir des expériences sur mesure ainsi que d'effectuer un travail approfondi de modélisation. The results were modeled by applying a theory based on the second-order perturbation theory and the Kramers-Kronig relationship for direct-gap semiconductors, which are important for the development of GaN-based nonlinear photonic devices. 3. Two-photon absorption is observed to exist only at wavelengths lower than 1.2 μm. 25(16) 2675-2680 (1986), Adel F. Antippa, Roger M. Leblanc, and Daniel Ducharme Note the Boolean sign must be in upper-case. Please enable it to take advantage of the complete set of features! Appl Opt. We describe an ultrasbort-pulse laser that, under specific operating conditions, balances the mechanisms of conventional passive mode locking and solitonlike pulse shaping in a single resonator to generate optical pulses that are to our knowledge the shortest yet emitted directly from a laser, 27 fsec. Temperature-dependent index of refraction of monoclinic Ga2O3 single crystal. A semiempirical model was proposed by Wilson and Curtis to account for the dependence of the linear anionic polarizability on the radius of the cation. Un nouveau mécanisme de relaxation est proposé et testé par la modélisation pour tenter d'expliquer la dynamique de ce processus. W−1, the third-order nonlinear coefficient of YSZ is comparable with the one of silicon nitride, which is already being used in nonlinear optics. You may subscribe either as an OSA member, or as an authorized user of your institution. Active 2 years, 9 months ago. Learn more about our response to COVID-19 including information for, J. Soc. We present a simple yet highly sensitive single-beam experimental technique for the determination of both the sign and magnitude of n(2). You may subscribe either as an OSA member, or as an authorized user of your institution. Observations of the time development of damage tracks in sapphire are explained in terms of a backward-moving self-focused spot. #color(white)(aaaaaaa)# #color(white)(aaaaaaa)# If we keep increasing the incident angle, the refracted angle just keeps getting bigger. We present time-resolved measurements of the electronic and the nuclear contributions to the third-order nonlinearities of Ti:sapphire and Cr:LiSGaF. Initial results are presented for a number of materials of scientific and technological interest. This website uses cookies to deliver some of our products and services as well as for analytics and to provide you a more personalized experience. This formula, which relates n2 to the linear refractive index and its dispersion, is shown to be accurate to within about 30% for materials with nonlinear indices ranging over 3 orders of magnitude. 2014 Mar 12;26(10):1584-9. doi: 10.1002/adma.201305172. 1Radiometric Physics Division, Center for Radiation Research, National Bureau of Standards, Gaithersburg, Maryland 20899 USA, 2Temperature and Pressure Division, Center for Basic Standards, National Bureau of Standards, Gaithersburg, Maryland 20899 USA. I am trying to calculate the refracrive index of Sapphire with the Sellmeier equation. 1990 Mar 20;29(9):1281-6. doi: 10.1364/AO.29.001281. Appl. HHS Nonlinear nanophotonic devices in the ultraviolet to visible wavelength range, Nonlinear nanophotonic devices in the Ultraviolet to Visible wavelength range, Fabrication of millimeter-long structures in sapphire using femtosecond infrared laser pulses and selective etching, Third Order Nonlinear Optical Susceptibility of Crystalline Oxide Yttria-Stabilized Zirconia, Coherence of bulk-generated supercontinuum, Optical nonlinearities in ultra-silicon-rich nitride characterized using z-scan measurements, Third-Order Nonlinear Spectrum of GaN under Femtosecond-Pulse Excitation from the Visible to the Near Infrared, Characterization of Accumulated B-Integral of Regenerative Amplifier Based CPA Systems, Effect of femtosecond laser pulse repetition rate on nonlinear optical properties of organic liquids, Etude des mécanismes fondamentaux d'interaction entre impulsions laser ultra-brèves et matériaux diélectriques, High-sensitivity single-beam N2 measurements, Characterization of the nonlinear refractive index of the laser crystal Yb:KGd(WO 4) 2, Semiconductor saturable-absorber mirror-assisted Kerr-lens mode-locked Ti:sapphire laser producing pulses in the two-cycle regime, Observations of Moving Self-Foci in Sapphire, Generation of optical pulses as short as 27 femtoseconds directly from a laser balancing self-phase modulation, group-velocity dispersion, saturable absorption, and saturable gain, Nonlinear Refractive Index of Optical Crystals, Generation of sub-10-fs pulses from a Kerr-lens mode-locked Cr3+:LiCAF laser oscillator by use of third-order dispersion-compensating double-chirped mirrors, Sub-Two-Cycle Pulses from a Kerr-Lens Mode-Locked Ti:Sapphire Laser, Time-resolved nonlinear refraction in femtosecond laser gain media, Feasibility of measuring the nonlinear index of refraction by third-order frequency mixing, Dual-Wavelength CW Operations at 1064.1 & 1073.1 nm and 1064.1 & 1085.3 nm of Nd:YVO4 Laser, The effect of electron beam on the electron hole in a plasma, Squeezed-light generation in a medium governed by the nonlinear Schrödinger equation.

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