Short-pulse scattering measurements from dielectric spheres using photoconductively switched

Kralj, David; Carin, Lawrence
March 1993
Applied Physics Letters;3/15/1993, Vol. 62 Issue 11, p1301
Academic Journal
Measures the short-pulse scattering from dielectric spheres using photoconductively switched antennas. Performance of short-pulse scattering measurements on three-dimensional targets; Attribution of the relative noise of the measured signals to the dielectric targets.


Related Articles

  • Photoconductive antennas generate tunable narrowband terahertz pulses. Stehr, Dominik // Laser Focus World;Oct2011, Vol. 47 Issue 10, p9 

    The article reports that the researchers at the Helmholtz-Zentrum Dresden Rossendorf in Dresden, Germany created tunable narrowband terahertz pulses through difference frequency generation using a photoconductive antenna (PCA) design.

  • A method to measure weak short-lived photoconductivity induced by laser excitation in low-resistance samples. de Sande, J. C. G.; Balmaseda, M. Sánchez; Pérez, J. M. Guerra // Review of Scientific Instruments;Jun94, Vol. 65 Issue 6, p2062 

    The present article describes a simple four point-probe method to measure weak and short-lived photoconductivity in low-resistance samples. The method is based on biasing the sample with a short and intense pulse of current which permits a high sensitivity of measurement. This pulsed and...

  • Ultrashort-pulse laser machining of dielectric materials. Perry, M.D.; Stuart, B.C. // Journal of Applied Physics;5/1/1999, Vol. 85 Issue 9, p6803 

    Presents information on a study concerning ultrashort-pulse laser machining of dielectric materials. Theoretical considerations; Experimental results; Summary of the findings.

  • Recording and reading of three-dimensional optical memory in glasses. Juodkazis, S.; Rode, A.V.; Gamaly, E.G.; Matsuo, S.; Misawa, H. // Applied Physics B: Lasers & Optics;Sep2003, Vol. 77 Issue 2/3, p361 

    Reports on three-dimensional optical memory recording and reading in glass by femtosecond pulses. Optically induced dielectric breakdown of glass in a mechanism of recording; Application of formulae of dielectric breakdown, in principle, for any crystalline or amorphous dielectric material;...

  • Photoconductive Z-scan measurement of multiphoton absorption in GaN. Pacˇebutas, V.; Krotkus, A.; Suski, T.; Perlin, P.; Leszczynski, M. // Journal of Applied Physics;12/1/2002, Vol. 92 Issue 11, p6930 

    A study of photoconductivity excited by picosecond laser pulses in bulk GaN samples is presented. Photoconductivity traces measured by moving the sample across the laser beam waist (photoconductive Z scan) were used for investigating two- and three-photon absorption processes. The value of the...

  • Controlled supercontinuum generation for optimal pulse compression: a time-warp analysis of nonlinear propagation of ultra-broad-band pulses. Spanner, M.; Pschenichnikov, M.; Olvo, V.; Ivanov, M. // Applied Physics B: Lasers & Optics;Sep2003, Vol. 77 Issue 2/3, p329 

    Describes the virtues of the pump-probe approach for controlled supercontinuum (SC) generation in nonlinear media, using the example of pulse compression by cross-phase modulation in dielectrics. Optimization of a strong pulse and a weak pulse at the input into the medium; Effective control of...

  • Measuring thermal effects in femtosecond laser-induced breakdown of dielectrics. Ladieu, F.; Martin, Ph.; Guizard, S. // Applied Physics Letters;8/5/2002, Vol. 81 Issue 6, p957 

    A quartz sample was submitted to femtosecond laser pulses with fluences up to 6 × F[sub c], where F[sub c] is the laser-induced breakdown fluence. A series of microthermocouples, deposited onto the surface, was used to measure heatings at the millisecond scale, at typically 50 µm from the...

  • Terahertz pulsed imaging with 1.06 μm laser excitation. Baker, C.; Gregory, I. S.; Tribe, W. R.; Bradley, I. V.; Evans, M. J.; Withers, M.; Taday, P. F.; Wallace, V. P.; Linfield, E. H.; Davies, A. G.; Missous, M. // Applied Physics Letters;11/17/2003, Vol. 83 Issue 20, p4113 

    We report the operation of a pulsed terahertz (THz) imaging system that uses a 120 fs pulse-width laser operating at 1.06 μm, and photoconductive InGaAs emitters and detectors. THz images are presented of biological and nonbiological specimens. The signal-to-noise ratio and frequency range of...

  • Photoinduced insulator-to-metal transition in ZnO/Mg0.15Zn0.85O heterostructures. Tsukazaki, A.; Ohtomo, A.; Nakano, M.; Kawasaki, M. // Applied Physics Letters;2/4/2008, Vol. 92 Issue 5, p052105 

    We report on the persistent photoconductivity accompanied with a steep insulator-to-metal transition at low temperatures in ZnO/Mg0.15Zn0.85O heterostructures. The photoexcited electrons were confined in the ZnO adjacent to the Mg0.15Zn0.85O to form a two-dimensional electron gas (2DEG). The...

  • Transient Response of Photoexcited Electrons: Absolute Negative Conductivity and Hall Oscillations. Raichev, O. E.; Vasko, F. T. // AIP Conference Proceedings;2007, Vol. 893 Issue 1, p201 

    Transient magnetotransport of electrons with partially-inverted distribution excited by an ultrashort optical pulse is studied theoretically. The time-dependent photoconductivity is calculated for both bulk and two-dimensional semiconductor layers by taking into account the relaxation of...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics