A 300-GHz CMOS 7-by-7 Detector Array for Optics-less THz Imaging with Scan-less Target Object

Kiryong Song; Jungsoo Kim; Doyoon Kim; Junghwan Yoo; Jae Sung Rieh

doi:10.1007/s10762-019-00664-3

A 300-GHz CMOS 7-by-7 Detector Array for Optics-less THz Imaging with Scan-less Target Object

Kiryong Song
, Jungsoo Kim
, Doyoon Kim
, Junghwan Yoo
, Jae Sung Rieh^*

^*Corresponding author for this work

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

11 Citations (Scopus)

Abstract

In this work, a 300-GHz 7 × 7 detector array based on a 65-nm Si CMOS technology has been developed and transmission imaging was performed using the detector array without any optical elements. The detector array consists of a 7-by-7 arrangement of 49 pixels in a full-chip size of 4 mm × 4 mm. The unit pixel is composed of a single direct detector with a differential common-gate configuration and a differential patch antenna. The fabricated CMOS detector array chip was mounted on a planar package for electrical characterization and imaging. The measured responsivity and the noise equivalent power (NEP) showed best values of 3599 V/W and 12.46 pW/Hz^1/2, respectively, at 303 GHz. Various THz imaging experiments were carried out based on the packaged CMOS detector array with a setup that does not require optical elements or the raster scan of the target object.

Original language	English
Pages (from-to)	202-214
Number of pages	13
Journal	Journal of Infrared, Millimeter, and Terahertz Waves
Volume	41
Issue number	2
DOIs	https://doi.org/10.1007/s10762-019-00664-3
Publication status	Published - 2020 Feb 1

Bibliographical note

Funding Information:
This work was supported by Institute of Information & Communications Technology Planning & Evaluation (IITP) grant funded by the Korea government (MSIT) (No. 2016-0-00185) Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Publisher Copyright:
© 2020, Springer Science+Business Media, LLC, part of Springer Nature.

Keywords

CMOS
Detector array
Terahertz
Transmission imaging

ASJC Scopus subject areas

Radiation
Instrumentation
Condensed Matter Physics
Electrical and Electronic Engineering

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title = "A 300-GHz CMOS 7-by-7 Detector Array for Optics-less THz Imaging with Scan-less Target Object",

abstract = "In this work, a 300-GHz 7 × 7 detector array based on a 65-nm Si CMOS technology has been developed and transmission imaging was performed using the detector array without any optical elements. The detector array consists of a 7-by-7 arrangement of 49 pixels in a full-chip size of 4 mm × 4 mm. The unit pixel is composed of a single direct detector with a differential common-gate configuration and a differential patch antenna. The fabricated CMOS detector array chip was mounted on a planar package for electrical characterization and imaging. The measured responsivity and the noise equivalent power (NEP) showed best values of 3599 V/W and 12.46 pW/Hz1/2, respectively, at 303 GHz. Various THz imaging experiments were carried out based on the packaged CMOS detector array with a setup that does not require optical elements or the raster scan of the target object.",

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AU - Rieh, Jae Sung

N1 - Funding Information: This work was supported by Institute of Information & Communications Technology Planning & Evaluation (IITP) grant funded by the Korea government (MSIT) (No. 2016-0-00185) Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. Publisher Copyright: © 2020, Springer Science+Business Media, LLC, part of Springer Nature.

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AB - In this work, a 300-GHz 7 × 7 detector array based on a 65-nm Si CMOS technology has been developed and transmission imaging was performed using the detector array without any optical elements. The detector array consists of a 7-by-7 arrangement of 49 pixels in a full-chip size of 4 mm × 4 mm. The unit pixel is composed of a single direct detector with a differential common-gate configuration and a differential patch antenna. The fabricated CMOS detector array chip was mounted on a planar package for electrical characterization and imaging. The measured responsivity and the noise equivalent power (NEP) showed best values of 3599 V/W and 12.46 pW/Hz1/2, respectively, at 303 GHz. Various THz imaging experiments were carried out based on the packaged CMOS detector array with a setup that does not require optical elements or the raster scan of the target object.

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A 300-GHz CMOS 7-by-7 Detector Array for Optics-less THz Imaging with Scan-less Target Object

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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