Near-field dielectric optics near the thermodynamic limit

被引：1
|
作者：
Feuermann, Daniel
Gordon, Jeffrey M.
Ng, Tuck Wah
机构：
[1] Ben Gurion Univ Negev, Jacob Blaustein Inst Desert Res, Dept Solar Energy & Environm Phys, IL-84990 Sede Boqer, Israel
[2] Ben Gurion Univ Negev, Dept Mech Engn, Pearlstone Ctr Aeronaut Engn Studies, IL-84105 Beer Sheva, Israel
[3] Natl Univ Singapore, Fac Engn, Singapore 117576, Singapore
来源：
OPTICAL ENGINEERING | 2006年 / 45卷 / 08期
关键词：
optical design; optical systems; concentrators;
D O I：
10.1117/1.2332812
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Practical aplanatic optics crafted from transparent dielectrics can approach the thermodynamic limit for radiative transfer in near-field systems. Designs are presented for the particularly challenging realm of high numerical aperture (NA) at the source and/or target. These light couplers can alleviate difficulties in aligning system components and can achieve the fundamental compactness limit for optical devices that satisfy Fermat's principle. Examples and performance estimates based on ray-trace simulations are presented. (c) 2006 Society of Photo-Optical Instrumentation Engineers.
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页数：3
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