منابع مشابه
Wave-Shaping Surfaces
Controlling light has fascinated mankind since the dawn of civilization, and the centuries of studies leading to the development of modern optics can still be a great source of inspiration. The advent of metamaterials—artificial materials with unconventional properties built by assembling smaller-than-wavelength constituent elements—has opened new venues for the manipulation of light propagatio...
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We consider coherent control of the shape of an atomic electron's wavefunction using a train of short transform-limited laser pulses. This type of control is experimentally demonstrated by exciting with a train of three pulses and measuring the resulting quantum state distribution. We also present a general theory for control with a train of N pulses in the weak field limit and discuss the exte...
متن کاملMicro-Shaping of Nanopatterned Surfaces by Electron Beam Irradiation
We show that planar nanopatterned thin films on standard polycarbonate (PC) compact discs (CD) can be micro-shaped in a non-contact manner via direct e-beam exposure. The shape of the film can be controlled by proper selection of the e-beam parameters. As an example of application, we demonstrate a two-dimensional (2D) array of micro-lenses/reservoirs conformally covered by an Al 2D nanohole ar...
متن کاملUltrafast temporal pulse shaping via phase-sensitive three-wave mixing.
It is well-known that the process of optical parametric amplification (OPA) can be sensitive to the phases of the incident waves. In OPA realized by three-wave mixing, injection of all three waves into the same mode with appropriate phase relationship results in amplification of the signal phase, with an associated deamplification of the signal energy. Prospects for the use of this technique in...
متن کاملTemporally shaping biphoton wave packets with periodically modulated driving fields
Shengwang Du,* Jianming Wen, and Chinmay Belthangady Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA Edward L. Ginzton Laboratory, Stanford University, Stanford, California 94305, USA Received 17 November 2008; revised manuscript received 13 J...
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ژورنال
عنوان ژورنال: Physics
سال: 2013
ISSN: 1943-2879
DOI: 10.1103/physics.6.53