3D printed diffractive terahertz lenses

被引：118

作者：

Furlan, Walter D. ^{[1
]}

Ferrando, Vicente ^{[1
,2
]}

Monsoriu, Juan A. ^{[2
]}

Zagrajek, Przemyslaw ^{[3
]}

Czerwinska, Bieta ^{[3
]}

Szustakowski, Mieczyslaw ^{[3
]}

机构：

[1] Univ Valencia, Dept Opt & Optometria & Ciencias Vis, E-46100 Burjassot, Spain

[2] Univ Politecn Valencia, Ctr Tecnol Fis, E-46022 Valencia, Spain

[3] Mil Univ Technol, Inst Optoelect, Warsaw, Poland

来源：

OPTICS LETTERS | 2016年 / 41卷 / 08期

关键词：

TIME-DOMAIN SPECTROSCOPY; POLYMERS;

D O I：

10.1364/OL.41.001748

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A 3D printer was used to realize custom-made diffractive THz lenses. After testing several materials, phase binary lenses with periodic and aperiodic radial profiles were designed and constructed in polyamide material to work at 0.625 THz. The nonconventional focusing properties of such lenses were assessed by computing and measuring their axial point spread function (PSF). Our results demonstrate that inexpensive 3D printed THz diffractive lenses can be reliably used in focusing and imaging THz systems. Diffractive THz lenses with unprecedented features, such as extended depth of focus or bifocalization, have been demonstrated. (C) 2016 Optical Society of America

引用

页码：1748 / 1751

页数：4

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