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Spatial modulation instability driven by light-enhanced nonlinearities in semiconductor CdZnTe:V crystals
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10.1063/1.2982084
/content/aip/journal/apl/93/10/10.1063/1.2982084
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/10/10.1063/1.2982084
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Figures

Image of FIG. 1.
FIG. 1.

Experimental setup. A 5 mm width beam from a diode laser is passed through a Michelson interferometer with a neutral density filter at one of its arms. The output intensity of the interferometer is imaged onto the (110) face of a CZT:V crystal, resulting in a “plane wave” with a small amplitude perturbation propagating along the crystalline direction. The crystal is illuminated uniformly by 1550 nm beam propagating in the direction.The crystal is biased by a dc field applied in the direction. The intensity at the output face of the crystal is imaged onto a CCD camera.

Image of FIG. 2.
FIG. 2.

Photographs of the MI pattern emerging at the output face of the CZT:V taken at signal intensity of , background intensity of , modulated at frequency of 3 Hz, and applied electric field of 8 kV/cm. (a) Induced MI for transverse wave number of . (b) Spontaneous MI pattern.

Image of FIG. 3.
FIG. 3.

Experimental results: [(a) and (b)] MI gain vs transverse wave number for different values of signal beam intensity, all measured at an applied electric field of 8 kV/cm and background intensity of . (b) MI gain vs transverse wave number for three different values of signal beam intensity, (c) MI gain vs transverse wave number for four different values of background beam intensity, all measured at applied electric field of 8 kV/cm and signal intensity of . (d) Uniform effective–refractive change vs background intensity, measured interferomentrically at signal intensity of and applied electric field of 8 kV/cm.

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/content/aip/journal/apl/93/10/10.1063/1.2982084
2008-09-12
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Spatial modulation instability driven by light-enhanced nonlinearities in semiconductor CdZnTe:V crystals
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/10/10.1063/1.2982084
10.1063/1.2982084
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