Plasmonic Micro Lens for Extraordinary Transmission of Broadband Light
نویسندگان
چکیده
Extraordinary transmittance and focusing of light in quasi far field region using miniaturized optical devices is a daunting task. A polarization independent, broadband, planar metallic transmissive micro aperture capable of achromatically focusing visible light in quasi far field region is proposed. The calculated enhancement factor of transmission efficiency was about ~2.2. The total transmission after the aperture is about 60%. This high throughput focusing device will open new avenues for focusing electromagnetic energy in the wide area of sensors and energy concentration.
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عنوان ژورنال:
دوره 4 شماره
صفحات -
تاریخ انتشار 2014