منابع مشابه
Near-field effects in single molecule emission.
We present the first experimental proof of the influence of a nearby nano-sized metal object on the angular photon emission by a single molecule. A novel angular sensitive detection scheme is implemented in an existing near-field scanning optical microscope (NSOM). The positioning accuracy ( approximately 1 nm) of the NSOM allows a systematic investigation of the intensity ratio between two dif...
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Following the 1994 Northridge and 1995 Kobe earthquakes, most of modern structures damaged seriously or devastated totally despite the seismic codes of these countries that had been expected to bear advanced criteria for seismic design of structures. After extensive research, the most probable reason of those destructions was attributed to special specifications of near-field earthquakes. In th...
متن کاملPropagation effects in apertureless near-field optical antennas
We report a direct observation of the electromagnetic wave propagation on optical antennas. A free-space broadband terahertz pulse is coupled into a propagating mode along the shaft of an optical antenna acting as an apertureless near-field probe. We determine the spatial extent of this guided mode and its velocity. In addition, we consider the possibility of multiply reflected modes propagatin...
متن کاملSe p 20 03 ELECTRIC FIELD EFFECTS NEAR CRITICAL POINTS ∗
We present a general Ginzburg-Landau theory of electrostatic interactions and electric field effects for the order parameter, the polarization, and the charge density. Electric field effects are then investigated in near-critical fluids and liquid crystals. Some new predictions are given on the liquid-liquid phase transition in polar binary mixtures with a small fraction of ions and the deforma...
متن کاملAntenna effects in terahertz apertureless near-field optical microscopy
We have performed measurements on terahertz (THz) apertureless near-field microscopy that show that the temporal shape of the observed near-field signals is approximately proportional to the time-integral of the incident field. Associated with this signal change is a bandwidth reduction by approximately a factor of 3 which is observed using both a near-field detection technique and a far-field ...
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ژورنال
عنوان ژورنال: Nature Photonics
سال: 2012
ISSN: 1749-4885,1749-4893
DOI: 10.1038/nphoton.2012.97