Results 51 to 60 of about 1,229,730 (151)

Study of the dispersion of nonlinear refraction in InSb

, 2006
We studied the nonlinear refraction due to bound electrons in InSb using femtosecond pulses in the range of 8-13 μm and show that the nonlinear refraction coefficient changes sign at a wavelength around 10 μm.
Hagan, D. J., D. J. Hagan, Van Stryland, E. W., E. W. Van Stryland, C. M. Cirloganu, Cirloganu, C. M.   +5 more
core   +1 more source

Collective refraction of a beam of electrons at a plasma-gas interface

Physical Review Special Topics. Accelerators and Beams, 2001
In a recent Brief Comment, the results of an experiment to measure the refraction of a particle beam were reported [P. Muggli et al., Nature 411, 43 (2001)]. The refraction takes place at a passive interface between a plasma and a gas.
P. Muggli, S. Lee, T. Katsouleas, R. Assmann, F. J. Decker, M. J. Hogan, R. Iverson, P. Raimondi, R. H. Siemann, D. Walz, B. Blue, C. E. Clayton, E. Dodd, R. A. Fonseca, R. Hemker, C. Joshi, K. A. Marsh, W. B. Mori, S. Wang   +18 more
doaj   +1 more source

Plasmon-exciton coupling in nanostructured metal-semiconductor composite films

AIP Advances, 2019
Nonlinear optical response of metal-semiconductor Zn0.8Co0.2O/Au nanocomposite films was studied experimentally and theoretically. Z-scan measurements revealed a positive nonlinear index of refraction of the composite film.
Viktoriia V. Savchuk, Roman V. Gamernyk, Ihor S. Virt, Serhiy Z. Malynych, Anatoliy O. Pinchuk   +4 more
doaj   +1 more source

Variation of nonlinear refraction of Dyes A2 and A3 as a function of concentration.

, 2016
Variation of nonlinear refraction of Dyes A2 and A3 as a function of concentration.
S. M. Afzal (3122919), M. A. N. Razvi (3122916), Ahmed H. Bakry (3122913), Abdullah M. Asiri (187546), Osman I. Osman (1558552), Salman A. Khan (3122922)   +5 more
core   +1 more source

Three-dimensional tomographic inversion of combined reflection and refraction seismic travel-time data

, 2003
A tomographic inversion method is presented for the determination of 3-D velocity and interface structure from a wide range of body-wave seismic traveltime data types.
T. A. Minshull, Minshull, Ta, J. W. D. Hobro, Singh, Sc, S. C. Singh, Hobro, Jwd, Minshull, T.A., Hobro, J.W.D., Singh, S.C.   +8 more
core   +1 more source

Solitary Wave Generation from Constant Continuous Wave in Asymmetric Oppositely Directed Waveguide Coupler

EPJ Web of Conferences, 2015
In a model which describes asymmetric oppositely directed nonlinear coupler it was observed in numerical simulations a phenomenon of solitary wave generation from the input constant continuous wave set at the entrance of a waveguide with negative ...
Kazantseva E.V., Maimistov A.I.
doaj   +1 more source

Measurement and application of optical nonlinearities in indium phosphide, cadmium mercury telluride and photonic crystal fibres [PDF]

, 2009
The two-photon absorption (TPA) coefficient is measured in indium phosphide (InP) using femtosecond pulses to be 45cm/GW at 1.32μm. Nanosecond pulses are subsequently used to find the free-carrier refractive index cross-section, σ_r, and the free-carrier
Sloanes, Trefor J.
core   +2 more sources

Beam Deflection Measurement of Time and Polarization Resolved Nonlinear Refraction

, 2013
We modify the photothermal beam deflection technique to study ultrafast optical nonlinearities. We measure the temporal and polarization dynamics of nonlinear refraction with sensitivity of λ/5500 while separating the isotropic and reorientational ...
Manuel R. Ferdinandus, Ferdinandus, Manuel R., Honghua Hu, Reichert, Matthew, Zuo Wang, Eric W. Van Stryland, Hu, Honghua, Matthew Reichert, Hagan, David J., David J. Hagan, Wang, Zuo   +10 more
core   +1 more source

Time-Resolved Nonlinear Refraction of Indium Tin Oxide at Epsilon Near Zero

, 2017
Using Beam-Deflection measurements we directly measure the temporal dynamics of nonlinear refraction and transmittance of an ITO thin film in the S -near-zero regime, and find a nonlinear index 5000 times that of ...
Pattanaik, Himansu S., Sepehr Benis, Eric W. Van Stryland, Van Stryland, Eric W., Peng Zhao, Hagan, David J., Himansu S. Pattanaik, David J. Hagan, Benis, Sepehr, Zhao, Peng   +9 more
core   +1 more source

Regularised Anisotropic Nonlinear Diffusion for Rendering Refraction in Volume Graphics [PDF]

, 2005
Rendering refraction in volume graphics requires smoothly distributed normals to synthesise good quality visual representations. Such refractive visualisation is more susceptible to noise in the data than visualisations that do not involve refraction. In
Rodgman, David, Chen, Min
core   +1 more source