scholarly journals Large-area wide-angle spectrally selective plasmonic absorber

2011 ◽  
Vol 84 (7) ◽  
Author(s):  
Chihhui Wu ◽  
Burton Neuner ◽  
Gennady Shvets ◽  
Jeremy John ◽  
Andrew Milder ◽  
...  
Keyword(s):  
Wide Angle ◽  
Large Area ◽  
Spectrally Selective

scholarly journals Wide-angle Spectrally Selective Perfect Absorber by Utilizing Dispersionless Tamm Plasmon Polaritons

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Chun-hua Xue ◽  
Feng Wu ◽  
Hai-tao Jiang ◽  
Yunhui Li ◽  
Ye-wen Zhang ◽  
...  
Keyword(s):  
Perfect Absorber ◽  
Wide Angle ◽  
Spectrally Selective ◽  
Plasmon Polaritons

scholarly journals Surging glaciers in Greenland – a status

1988 ◽  
Vol 140 ◽  
pp. 106-110
Author(s):  
A Weidick
Keyword(s):  
Aerial Photography ◽  
Wide Angle ◽  
Large Area ◽  
East Greenland ◽  
West Greenland ◽  
Geodetic Institute ◽  
Glacier Changes ◽  
History Of ◽  
Glacier Surges

New wide-angle vertical aerial photography covering most of West and East Greenland were flown in the years 1981 and 1985 by Mark Hurd Corp., Minneapolis, Minnesota, for the Geodetic Institute, Copenhagen. The photographs are on a scale of approximately 1:150 000,so that single photographs cover a large area, and are valuable as bench marks for glacier changes. These photographs have been used for updating information on West Greenland glacier changes and the history of West Greenland glacier surges. Those covering East Greenland have been used for location of importantcentres of surging glaciers.

scholarly journals Large-area, lithography-free, narrow-band and highly directional thermal emitter

Nanoscale ◽  
2019 ◽  
Vol 11 (42) ◽  
pp. 19742-19750 ◽  
Author(s):  
Xingxing Liu ◽  
Zhiwei Li ◽  
Zhengji Wen ◽  
Mingfei Wu ◽  
Jialiang Lu ◽  
...  
Keyword(s):  
Narrow Band ◽  
Large Area ◽  
Long Wavelength ◽  
Spectrally Selective ◽  
Thermal Emitter ◽  
Long Wavelength Infrared

In this work, the authors propose and experimentally demonstrate a large-area long-wavelength infrared thermal emitter, which is spectrally selective, highly directional, and easily fabricated.

scholarly journals Wide Angle Dynamically Tunable Enhanced Infrared Absorption on Large-Area Nanopatterned Graphene

ACS Nano ◽  
2018 ◽  
Vol 13 (1) ◽  
pp. 421-428 ◽  
Author(s):  
Alireza Safaei ◽  
Sayan Chandra ◽  
Michael N. Leuenberger ◽  
Debashis Chanda
Keyword(s):  
Infrared Absorption ◽  
Wide Angle ◽  
Large Area ◽  
Nanopatterned Graphene

scholarly journals A simple Mie-resonator based meta-array with diverse deflection scenarios enabling multifunctional operation at near-infrared

Nanophotonics ◽  
2020 ◽  
Vol 9 (15) ◽  
pp. 4589-4600
Author(s):  
Majid Aalizadeh ◽  
Andriy E. Serebryannikov ◽  
Ekmel Ozbay ◽  
Guy A. E. Vandenbosch
Keyword(s):  
Near Infrared ◽  
Specular Reflection ◽  
Polarization State ◽  
Diffraction Order ◽  
Spatial Filtering ◽  
Zero Order ◽  
Ultra Wideband ◽  
Wide Angle ◽  
Large Area ◽  
Phase Gradient

AbstractDeflection, a basic functionality of wavefront manipulation is usually associated with the phase-gradient metasurfaces and the classical blazed gratings. We numerically and experimentally demonstrate an unusually wideband and simultaneously wide-angle deflection achieved at near-infrared in reflection mode for a periodic (nongradient), ultrathin meta-array comprising only one silicon nanorod (Mie resonator) per period. It occurs in the range where only the first negative diffraction order and zero order may propagate. Deflection serves as the enabler for multifunctional operation. Being designed with the main goal to obtain ultra-wideband and wide-angle deflection, the proposed meta-array is also capable in spatial filtering and wide-angle splitting. Spatial filtering of various types can be obtained in one structure by exploiting either deflection in nonzero diffraction orders, or the specular-reflection (zero-order) regime. Thus, the role of different diffraction orders is clarified. Moreover, on–off switching of deflection and related functionalities is possible by changing polarization state of the incident wave. The suggested device is simple to fabricate and only requires cost-effective materials, so it is particularly appropriate for the large-area fabrication using nanoprint lithography. Ultra-wideband wide-angle and other deflection scenarios, along with the other functionalities, are promising for applications in optical communications, laser optics, sensing, detection, and imaging.

scholarly journals Astrometric Interferometry — Can It Establish a Fundamental System?

1990 ◽  
Vol 141 ◽  
pp. 241-250
Author(s):  
G. H. Kaplan
Keyword(s):  
Reference Frame ◽  
Fundamental System ◽  
Wide Angle ◽  
Optical Interferometer ◽  
Large Area ◽  
The Earth ◽  
Astrometric Data

The astrometric optical interferometer on Mt. Wilson is providing a new source of astrophysical and astrometric data on bright stars. The instrument, with 12-meter baselines, has been in operation since late 1986. The interferometer is capable of wide-angle astrometry, that is, the determination of very precise stellar positions within a reference frame defined by bright stars spread across a large area (of order one steradian) of the sky. This paper addresses the question of whether such an instrument can be used to establish a fundamental system — that is, one tied to the Earth in some well-defined way. Some astrometric data from this instrument are presented to illustrate the difficulties involved. Proposed means of addressing these problems in future instruments are discussed.

scholarly journals Wide-Angle Spectrally Selective Absorbers and Thermal Emitters Based on Inverse Opals

ACS Photonics ◽  
2019 ◽  
Vol 6 (11) ◽  
pp. 2607-2611
Author(s):  
Alireza Shahsafi ◽  
Graham Joe ◽  
Soeren Brandt ◽  
Anna V. Shneidman ◽  
Nicholas Stanisic ◽  
...  
Keyword(s):  
Wide Angle ◽  
Inverse Opals ◽  
Spectrally Selective ◽  
Thermal Emitters
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