Simple telecentric submillimeter lens with near-diffraction-limited performance across an 80 degree field of view

Mohsen Rezaei; Iman Hasani Nia; Alireza Bonakdar; Hooman Mohseni

doi:10.1364/AO.55.008752

Simple telecentric submillimeter lens with near-diffraction-limited performance across an 80 degree field of view

Mohsen Rezaei, Iman Hasani Nia, Alireza Bonakdar, Hooman Mohseni^*

^*Corresponding author for this work

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

A simple and compact telecentric lens based on two hemispheric optical elements arranged in a formation resembling an "hourglass" is proposed and evaluated. Our modeling and experimental results show the ability of this lens in achieving high resolution over a large field of view. A prototype with 500 μm total thickness is built using silicon micromachining methods for a center wavelength of 1500 nm. Experimental measurement shows near-diffraction-limited performance and good telecentricity over an 80° field of view at a numerical aperture of 0.2. All elements of the hourglass lens are in direct contact, and hence the alignment is extremely simple. We believe the proposed lens is a good candidate for compact and low-cost multi-aperture imagers.

Original language	English (US)
Pages (from-to)	8752-8756
Number of pages	5
Journal	Applied optics
Volume	55
Issue number	31
DOIs	https://doi.org/10.1364/AO.55.008752
State	Published - Nov 1 2016

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Engineering (miscellaneous)
Electrical and Electronic Engineering

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title = "Simple telecentric submillimeter lens with near-diffraction-limited performance across an 80 degree field of view",

abstract = "A simple and compact telecentric lens based on two hemispheric optical elements arranged in a formation resembling an {"}hourglass{"} is proposed and evaluated. Our modeling and experimental results show the ability of this lens in achieving high resolution over a large field of view. A prototype with 500 μm total thickness is built using silicon micromachining methods for a center wavelength of 1500 nm. Experimental measurement shows near-diffraction-limited performance and good telecentricity over an 80° field of view at a numerical aperture of 0.2. All elements of the hourglass lens are in direct contact, and hence the alignment is extremely simple. We believe the proposed lens is a good candidate for compact and low-cost multi-aperture imagers.",

author = "Mohsen Rezaei and {Hasani Nia}, Iman and Alireza Bonakdar and Hooman Mohseni",

note = "Funding Information: National Science Foundation (NSF) (ECCS-0901855, ECCS-1206155, ECCS-1310620); Army Research Office (ARO) (W911NF-11-1-0390, W911NF-13-1-0485). Portions of this work were presented at the SPIE, Current Developments in Lens Design and Optical Engineering in 2015, 957809-1 [9]. Publisher Copyright: {\textcopyright} 2016 Optical Society of America.",

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AU - Rezaei, Mohsen

AU - Hasani Nia, Iman

AU - Bonakdar, Alireza

AU - Mohseni, Hooman

N1 - Funding Information: National Science Foundation (NSF) (ECCS-0901855, ECCS-1206155, ECCS-1310620); Army Research Office (ARO) (W911NF-11-1-0390, W911NF-13-1-0485). Portions of this work were presented at the SPIE, Current Developments in Lens Design and Optical Engineering in 2015, 957809-1 [9]. Publisher Copyright: © 2016 Optical Society of America.

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AB - A simple and compact telecentric lens based on two hemispheric optical elements arranged in a formation resembling an "hourglass" is proposed and evaluated. Our modeling and experimental results show the ability of this lens in achieving high resolution over a large field of view. A prototype with 500 μm total thickness is built using silicon micromachining methods for a center wavelength of 1500 nm. Experimental measurement shows near-diffraction-limited performance and good telecentricity over an 80° field of view at a numerical aperture of 0.2. All elements of the hourglass lens are in direct contact, and hence the alignment is extremely simple. We believe the proposed lens is a good candidate for compact and low-cost multi-aperture imagers.

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Simple telecentric submillimeter lens with near-diffraction-limited performance across an 80 degree field of view

Abstract

ASJC Scopus subject areas

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