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Optical Torque Exerted on a Rotator under Illumination of a Vortex Beam
Optical Torque Exerted Rotator Illumination Vortex Beam
2013/7/3
We investigate the torque on a specially shaped rotator produced by a vortex beam. The formulas for the torque alongx, yandzdirections are derived, and numerically calculation is performed. It is foun...
Hybrid-effect transmission enhancement induced by oblique illumination in nano-ridge waveguide
2011/11/24
In a nano-ridge waveguide under oblique illumination, we demonstrated transmission enhancement resulting from a hybrid effect between propagation modes and surface plasmon wave. The measured near-fiel...
Resilience of gated avalanche photodiodes against bright illumination attacks in quantum cryptography
quantum cryptography gated avalanche photodiodes
2011/9/13
Semiconductor avalanche photodiodes (APDs) are commonly used for single photon detection in quantum key distribution. Recently, many attacks using bright illumination have been proposed to manipulate ...
Change of Birefringence in Dye-Doped Nematic Liquid Crystals Under Laser Illumination
Dye-doped liquid crystals Transmittance Birefringence Molecular reorientation
2010/4/13
Birefringence property of E7 nematic liquid crystal is investigated via voltage dependent transmittance spectrums. Measurements are performed at wavelength 632.8 nm, which is the absorbance peak of ou...
Effect of Illumination Temperature on Thermally Stimulated Current Spectrum of TlInS2
photocurrent spectra stimulated current
2010/4/15
The effect of pre-illumination on both thermally stimulated current and photocurrent spectra of TlInS2 crystal is investigated. The increase in the photosensitivity of the crystal by several orders of...