نتایج جستجو برای: orbital angular momentum
تعداد نتایج: 149139 فیلتر نتایج به سال:
Controlled transfer of orbital angular momentum to an exciton-polariton Bose-Einstein condensate spontaneously created under incoherent, off resonant excitation conditions is a long-standing challenge in the field of microcavity polaritonics. We demonstrate, experimentally and theoretically, a simple and efficient approach to the generation of nontrivial orbital angular momentum states by using...
We propose an all-optical method of creating electron vortices utilizing the Kapitza-Dirac effect. This technique uses the transfer of orbital angular momentum from photons to free electrons creating electron vortex beams in the process. The laser intensities needed for this experiment can be obtained with available pulsed lasers and the resulting electron beams carrying orbital angular momentu...
Beams of light with helical wavefronts can be focused into ring-like optical traps known as optical vortices. The orbital angular momentum carried by photons in helical modes can be transferred to trapped mesoscopic objects and thereby coupled to a surrounding fluid. We demonstrate that arrays of optical vortices created with the holographic optical tweezer technique can assemble colloidal sphe...
We study the geometric phase that is acquired when the second-order mode of an optical beam undergoes a cyclic transformation. We ̄nd that a geometric phase appears when the initial and intermediate modes have di®erent quantities of orbital angular momentum. The phase is similar to the one measured previously for transformations of ̄rst-order modes. However, we ̄nd no accumulated geometric phas...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید