کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5430709 1397415 2008 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Confinement of infrared radiation to nanometer scales through metallic slit arrays
موضوعات مرتبط
مهندسی و علوم پایه شیمی طیف سنجی
پیش نمایش صفحه اول مقاله
Confinement of infrared radiation to nanometer scales through metallic slit arrays
چکیده انگلیسی

One-dimensional metallic slit array has been intensively studied in the spectral range from ultraviolet to near-infrared due to its enhanced transmission for transverse magnetic waves. However, the transmission enhancement is sensitive to the wavelength of incident radiation because of resonance characteristics. In this paper, we theoretically demonstrate that confining mid-infrared radiation to nanometer scales with a large transmission enhancement can be achieved from an aluminum slit array in a wavelength-insensitive manner, for potential applications in localized heating and nanothermal patterning. The Poynting vector and energy density calculated from the rigorous coupled-wave analysis (RCWA) are used to explain the strong localization of electromagnetic energy in the near-field regime. Furthermore, the localization of energy is also studied when a dielectric substrate is used to support the slit array in practical applications.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Quantitative Spectroscopy and Radiative Transfer - Volume 109, Issue 4, March 2008, Pages 608-619
نویسندگان
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