3D Printed Terahertz Diffraction Gratings And Lenses
نویسندگان
چکیده
منابع مشابه
3D printed terahertz diffraction gratings and lenses
3D printing opens up an inexpensive, rapid, and versatile path to the fabrication of optical elements suited to the terahertz regime. The transmission of the plastics used in 3D printers, while generally decreasing with frequency, is usable over the range 0.1-2 THz. We have designed, fabricated, and tested regular and blazed gratings and aspherical lenses for operation at terahertz frequencies....
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A new class of ultra-miniature diffraction gratings has been recently proposed [1]. These gratings impose phase antisymmetry on the incoming wavefront effectively producing optical nulls which enable them to exhibit relatively constant response across wavelengths as well as insensitivity to manufactured grating thickness [2]. Hardware verification of these tiny gratings (on the scale of μm) has...
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Two-dimensional (2D) materials have emerged as promising candidates for miniaturized optoelectronic devices due to their strong inelastic interactions with light. On the other hand, a miniaturized optical system also requires strong elastic light–matter interactions to control the flow of light. Herewe report that a single-layermolybdenumdisulfide (MoS2) has a giant optical path length (OPL), a...
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Metamaterials, artificial electromagnetic media consisting of periodical subwavelength metal-based micro-structures, were widely suggested for the absorption of terahertz (THz) waves. However, they have been suffered from the absorption of THz waves just in the single-frequency owing to its resonance features. Here, in this paper, we propose a simple periodical structure, composed of two 90 deg...
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ژورنال
عنوان ژورنال: Journal of Infrared, Millimeter, and Terahertz Waves
سال: 2014
ISSN: 1866-6892,1866-6906
DOI: 10.1007/s10762-014-0122-8