Gradient index lens using effective refractive index of microstructure arranged in radial pattern, and method for manufacturing same
KH Jeong, S Park, Y Lee - US Patent 9,772,476, 2017 - Google Patents
Provided are a gradient index lens using the effective refrac tive index of a microstructure
operating in the terahertz frequency regions and mid-infrared regions at wavelengths of 0. 8
m to 3 mm and a method for manufacturing the same. Based on the effective medium
theorem, the effective refrac tive index is controlled by using a structure smaller than the mid-
infrared and terahertz wavelength, and a gradient can be provided for the refractive index in
a radial direction and in (Continued)
operating in the terahertz frequency regions and mid-infrared regions at wavelengths of 0. 8
m to 3 mm and a method for manufacturing the same. Based on the effective medium
theorem, the effective refrac tive index is controlled by using a structure smaller than the mid-
infrared and terahertz wavelength, and a gradient can be provided for the refractive index in
a radial direction and in (Continued)
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