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	Tuning the resonant wavelength of a nanometric bow-tie aperture by altering the relative permittivity of the dielectric substrate
	Gai, Hongfeng ; Wang, Jia ; Tian, Qian
	2010-10-12 ; 2010-10-12
关键词	resonant wavelength bow-tie aperture relative permittivity finite-difference time-domain (FDTD) method LIGHT TRANSMISSION C-APERTURE OPTICAL-TRANSMISSION SPECTRAL-ANALYSIS ANNULAR APERTURE METALLIC-FILMS LASER BOUNDARY ARRAYS MEDIA Nanoscience & Nanotechnology Optics
中文摘要	A nanometric bow-tie aperture has a resonant wavelength where its power throughput is maximal. The incident wavelength should coincide with the resonant wavelength in order to improve the power throughput. However, sometimes it is impossible to tune the incident wavelength, so the resonant wavelength should be tuned alternatively. In order to implement this goal, the relative permittivity of the dielectric substrate of the bow-tie aperture was altered. Finite-difference time-domain (FDTD) simulation results demonstrated that the resonant wavelength is tuned from 569.7 nm to 694.1 nm when the relative permittivity is altered from 1.0 to 3.5. The advantage of this method is that the resonant wavelength can be tuned continuously if the relative permittivity can be altered continuously.
语种	英语 ; 英语
出版者	SPIE-SOC PHOTOPTICAL INSTRUMENTATION ENGINEERS ; BELLINGHAM ; 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98225 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/80387]
专题	清华大学
推荐引用方式 GB/T 7714	Gai, Hongfeng,Wang, Jia,Tian, Qian. Tuning the resonant wavelength of a nanometric bow-tie aperture by altering the relative permittivity of the dielectric substrate[J],2010, 2010.
APA	Gai, Hongfeng,Wang, Jia,&Tian, Qian.(2010).Tuning the resonant wavelength of a nanometric bow-tie aperture by altering the relative permittivity of the dielectric substrate..
MLA	Gai, Hongfeng,et al."Tuning the resonant wavelength of a nanometric bow-tie aperture by altering the relative permittivity of the dielectric substrate".(2010).

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