The interaction of subpicosecond KrF-laser pulses with polished and colloidal metal surfaces at an intensity of 8×1015 W/cm2 was investigated experimentally. The measurements with spectral and temporal resolution for the colloidal targets showed a higher energy conversion efficiency into soft x rays and an increase in x-ray pulse lengths.
We discuss the nonlinear characteristics of hybrid CdS devices at room temperature by using increasing absorption at a wavelength of 514.5 nm. Via the thermo-optical properties, a self-electro-optic effect occurs due to the optically induced dissipation of electrical power. As a special application, the device can be utilized as an electro-optic modulator for Ar+ laser light. In addition, voltage controlled optical bistability is also observed.
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