High numerical aperture diffractive optics for imaging applications at 0.6 THz frequency

被引：0

作者：

Minkevicius, L. ^{[1
]}

Jokubauskis, D. ^{[1
]}

Janonis, V. ^{[1
]}

Indrisiunas, S. ^{[1
]}

Raciukaitis, G. ^{[1
]}

Tamosiunas, V. ^{[1
]}

Kasalynas, I. ^{[1
]}

Valusis, G. ^{[1
]}

机构：

[1] Ctr Phys Sci & Technol, Sauletekio Ave 3, LT-10257 Vilnius, Lithuania

来源：

2018 43RD INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ) | 2018年

关键词：

TERAHERTZ; SILICON;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

high numerical aperture diffractive lenses such as conventional and combined zone plates, silicon based multilevel phase Fresnel zones were developed for high resolution THz imaging at the frequency range of 0.6 THz. Spectral features, spatial profiles, and focal depth characteristics are discussed, demonstrating the results to be in a good agreement with simulation data. In addition, new technique of the bifocal THz imaging is proposed.

引用

页数：2

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