One-way, real time wave front converters

Kwong, Sze-Keung; Yariv, Amnon
March 1986
Applied Physics Letters;3/3/1986, Vol. 48 Issue 9, p564
Academic Journal
Optical one-way, real time wave front cleanup by means of photorefractively pumped oscillators is reported. A factor of 4000 increase in beam brightness has been achieved.


Related Articles

  • Self-action of Bessel light beams in cubic gyrotropic photorefractive crystals. Ropot, P.; Vasil’ev, R. // Journal of Applied Spectroscopy;Jul2006, Vol. 73 Issue 4, p551 

    We have studied conversion and interaction of a Bessel laser beam of zero order in photorefractive crystals. We have established that in a cubic gyrotropic crystal, two Bessel light beams propagate with different wave vectors and cone angles, but with identical conicity parameters. As the power...

  • Beam shaping and effective guiding in the bulk of photorefractive crystals through linear beam dynamics. DelRe, E.; Pierangelo, A.; Palange, E.; Ciattoni, A.; Agranat, A. J. // Applied Physics Letters;8/20/2007, Vol. 91 Issue 8, p081105 

    The authors demonstrate a technique to optically imprint through linear beam propagation an index pattern in the bulk of a photorefractive crystal capable of beam reshaping and waveguiding. The procedure is based on the separation into two distinct phases of the photosensitive and refractive...

  • Vary PRK algorithms by the patient's age. Sabbagh, Leslie // Ophthalmology Times;12/18/95, Vol. 20 Issue 48, p8 

    Recommends that surgeons should not use the same photorefractive keratectomy (PRK) algorithm on every patient. Cautions against overcorrection in patients older than 40 years.

  • Books. Ducharme, Stephen // Physics Today;Nov97, Vol. 50 Issue 11, p75 

    Reviews the book `The Physics and Applications of Photorefractive Materials,' by Lazlo Solymar, David J. Webb, and Anders Grunnet-Jepsen.

  • Photorefraction in LiNbO[sub 3] as a function of [Li]/[Nb] and MgO concentrations. Furukawa, Y.; Kitamura, K.; Takekawa, S.; Miyamoto, A.; Terao, M.; Suda, N. // Applied Physics Letters;10/16/2000, Vol. 77 Issue 16 

    Photorefractive damage, photoconductivities, and photogalvanic currents of LiNbO[sub 3] single crystals have been investigated as a function of [Li]/[Nb] and MgO concentrations. Near stoichiometric LiNbO[sub 3] single crystal, having large [Li]/[Nb] ratios of 0.993, shows lower photorefractive...

  • Conversion of optical path length to frequency by an interferometer using photorefractive oscillation. Kwong, Sze-Keung; Yariv, Amnon; Cronin-Golomb, Mark; Ury, Israel // Applied Physics Letters;9/1/1985, Vol. 47 Issue 5, p460 

    Frequency detuning effects in photorefractive oscillators are used in a new type of (passive) interferometry which converts optical path length changes to frequency shifts. Such an interferometer is potentially more accurate than conventional interferometers which convert optical path length...

  • Spatial light modulation and filtering effects in photorefractive wave mixing. Fischer, Baruch; Weiss, Shimon; Sternklar, Shmuel // Applied Physics Letters;3/2/1987, Vol. 50 Issue 9, p483 

    A study of photorefractive wave mixing with image bearing beams reveals unique capabilities in spatial modulation, filtering, and cleanup of amplitude and phase modulated beams. We study and explain the negligible image crosstalk in various photorefractive oscillators.

  • Coupling of diode laser arrays with photorefractive passive phase conjugate mirrors. Segev, Mordechai; Weiss, Shimon; Fischer, Baruch // Applied Physics Letters;5/18/1987, Vol. 50 Issue 20, p1397 

    An experimental study of the coupling of diode laser arrays to various photorefractive phase conjugate mirrors is presented. We demonstrate frequency locking of arrays as well as the control of their emitted light patterns.

  • Photorefractive slit waves. Shandarov, S. M.; Shandarov, E. S. // Technical Physics Letters;Aug97, Vol. 23 Issue 8, p586 

    It is shown that photorefractive slit waves may exist, localized near a narrow gap between two similar photorefractive crystals with a diffusion mechanism of nonlinearity and oppositly directed polar axes.


Read the Article


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

Try another library?
Sign out of this library

Other Topics