Results 271 to 280 of about 106,674 (292)
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Fast all-optical spatial-temporal light modulator
SPIE Proceedings, 2000We suggest to use modulation of distributed feedback in the volume reflection type diffractive periodic structures for the fast all-optical spatial-temporal light modulators. Different types of periodic structures are discussed: cholesteric liquid crystals, static and dynamic reflection gratings in the photorefractive crystals and photopolymers.
Nickolai V. Kukhtarev +5 more
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Multiperiod piezoelectric-barrier all-optical light modulator
Microelectronics Journal, 1999Abstract We present preliminary new results on multiperiod piezoelectric-barrier all-optical modulators. It is shown first on single period structures that an incident beam of a few W/cm 2 is able to create a space-charge field of ∼20 kV/cm in the structure, inducing a 10 meV shift in the photoluminescence (PL) spectrum.
V. ORTIZ, MULA, GUIDO, N. T. PELEKANOS
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Interaction-free All-optical Modulation on Chip
Frontiers in Optics 2017, 2017We report the observation of quantum Zeno blockade on chip, where a lightwave is modulated by another in a distinct “interaction-free” manner. For quantum applications, we also verify its operations on single photons.
Jia-Yang Chen +4 more
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Graphene based ultrafast all-optical terahertz modulator
2013 38th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013In this presentation, we proposed an all-optical broadband THz modulator based on single-layer graphene (SLG) on silicon. By illuminating the film with CW laser, the THz transmission decreased significantly. The modulation speed was measured at 340GHz to be as high as 0.5 MHz. This modulator has huge potential for real application.
Qi-Ye Wen +5 more
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Ultrafast all-optical modulation based on graphene-microfiber
Optics LettersWe proposed and studied an all-optical modulator based on graphene-microfiber (GMF), and prepared GMF by transferring graphene to the surface of the tapered region of the microfiber. The all-optical modulation characteristics and ultrafast all-optical modulation characteristics of GMF under different light source combinations were studied, and the all ...
Xuetao Xia +8 more
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All-Optical Modulation via Metamaterials
Proceedings of the 11th International Conference on Photonics, Optics and Laser Technology, 2023openaire +1 more source
All-Optical Plasmonic Modulators and Interconnects
2010Domenico Pacifici +5 more
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