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It is shown that the metallic disk structure can be used as an efficient narrow-band thermal emitter in the IR region. The absorption spectra of such structure are investigated both theoretically and experimentally. Calculations of thermal radiation properties of the metallic disk show that the metallic disk is a perfect emitter at a specific wavelength. The metallic disk exhibits only one significant...
We present resonant transmission through rectangular hole array on a metallic film. Transmission spectra broaden with the resonance peaks shifting toward higher frequencies, as the period decreases. The broadening is caused by inter-resonator coupling effects similar to the tight binding model.
A review of the number of fundamental problems connected with functioning the multielement (linear and matrix) detectors of infrared radiation based on narrow-band semiconductors which are operating as a charge injection devices (CID) is given in this paper. Such questions as redundant lateral photo-sensitivity of CID elements, cross-talks, electric field instability of MIS structures, operation of...
Carbon nanotube (CNT) is a type of ideal cathode materials for field emission (FE) devices. Its outstanding field emission properties can be attributed to high field enhancement on the tip due to its large aspect ratio. Early works reported that the field enhancement of CNTs in an array is strongly suppressed due to the screening effect. Further study confirmed that to avoid the screening effect,...
Summary form only given. Scaling down to tens of nanometers or even below is appealing for device miniaturization, on one hand, and for exploring/exploiting novel phenomena arising from nanometer-size effects. Ferroelectric (FE) materials have been proposed for nonvolatile ferroelectric random access memories since two decades (J.F. Scott and C.A.P.D. Araujo, 1989) and lateral dimensions of ca. 100...
To increase memory bandwidth with minimum area overhead, the new concept of 3D-stacked memory structure consisting of a small sense amplifier shared with a few 3D memory cells has been presented. The 16 bit 3D-stacked TiO2 memory chip was fabricated and demonstrated. The estimated bandwidth per unit area of 3D-stacked memory in sub-65 nm CMOS technology indicates that the 3D-stacked memory has potential...
We report the small-range strain characterization of anisotropic fiber Bragg gratings (FBGs) written by high-intensity femtosecond UV pulses. The FBGs are characterized with applied strain of 0-300 muepsiv using a high-speed Czerny-Turner spectrometer. The strain response slope is comparable to typical FBGs.
We present the use of swept wavelength interferometry for distributed fiber-optic temperature measurements in a nuclear reactor. The sensors consisted of 2-m segments of commercially available, single mode optical fibers. The interrogation technique is based on measuring the spectral shift of the intrinsic Rayleigh backscatter signal along the optical fiber and converting the spectral shift to temperature.
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