Results 231 to 240 of about 26,579 (259)
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1993
We describe a phenomenon of nonlinear optics that occurs in the framework of transverse effects and optical vortices in lasers. We find that in a class-B laser vortices can never be at rest, but move, starting from an initial symmetry breaking of the direction of motion, continuously.
C. O. Weiss +3 more
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We describe a phenomenon of nonlinear optics that occurs in the framework of transverse effects and optical vortices in lasers. We find that in a class-B laser vortices can never be at rest, but move, starting from an initial symmetry breaking of the direction of motion, continuously.
C. O. Weiss +3 more
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The optical vortex coronagraph
Journal of Optics A: Pure and Applied Optics, 2009An optical vortex coronagraph is a high contrast imaging system which has the potential to completely extinguish light from an on-axis point source, allowing glare-free, high throughput imaging of off-axis targets. An important application is the direct detection of exoplanets orbiting distant stars.
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SPIE Proceedings, 2005
An optical vortex may be characterized as a dark core of destructive interference in a beam of spatially coherent light. This dark core may be used as a filter to attenuate a coherent beam of light so an incoherent background signal may be detected. Applications of such a filter include: eye and sensor protection, forward-scattered light measurement ...
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An optical vortex may be characterized as a dark core of destructive interference in a beam of spatially coherent light. This dark core may be used as a filter to attenuate a coherent beam of light so an incoherent background signal may be detected. Applications of such a filter include: eye and sensor protection, forward-scattered light measurement ...
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2001
After describing some elements of the theory of linear optical vortices I discuss experimental and theoretical aspects of optical vortex solitons.
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After describing some elements of the theory of linear optical vortices I discuss experimental and theoretical aspects of optical vortex solitons.
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Optics and Photonics News, 2006
A helical-shaped phase mask can be used as a type of "optical vortex lens" that may lead to improvements in astronomical observation, the manipulation of micro-particles, optical pattern recognition and other areas.
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A helical-shaped phase mask can be used as a type of "optical vortex lens" that may lead to improvements in astronomical observation, the manipulation of micro-particles, optical pattern recognition and other areas.
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Fractional optical vortex beam induced rotation of particles
Optics Express, 2005Jiao Lin, S H Tao
exaly
Generation of Circular Optical Vortex Array
Annalen Der Physik, 2017Xinzhong Li, Zhaogang Nie, Yuping Tai
exaly
Handedness control in a 2-μm optical vortex parametric oscillator
Optics Express, 2013Katsuhiko Miyamoto +2 more
exaly
Bi-channel near- and far-field optical vortex generator based on a single plasmonic metasurface
Photonics Research, 2020Zheyu Fang, Feng Lin, Tong Cui
exaly