基于发光二极管的强场太赫兹相机

Shangqing Li; Chen Ouyang; Jinglong Ma; Baolong Zhang; Xiaojun Wu; Jihong Xu; Yutong Li

doi:10.3788/AOS202141.2411002

基于发光二极管的强场太赫兹相机

Translated title of the contribution: A Light-Emitting Diode-Based Strong-Field Terahertz Camera

Shangqing Li
, Chen Ouyang
, Jinglong Ma
, Baolong Zhang
, Xiaojun Wu^*
, Jihong Xu
, Yutong Li^*

^*Corresponding author for this work

School of Electronic and Information Engineering

CAS - Institute of Physics
Chinese Academy of Sciences
Texas Instruments Inc.
Songshan Lake Materials Laboratory

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

Abstract

A strong-pulsed-field terahertz camera based on light emitting diode (LED) is reported in this paper. It is based on the operational principle that LED can generate nanosecond pulse-duration photovoltaic signal with a reproducible response to picosecond pulse-duration intense terahertz irradiation due to impact ionization when terahertz electric field strength is larger than 50 kV/cm. By employing this effect, we fabricate scanning and array LED-terahertz cameras. These devices have successfully captured images of focused terahertz beam profile generated in lithium niobate via the tilted pulse front technique. The proposed camera has characteristics of low cost, strong photovoltaic signal, rapid response, and large imaging area. Meanwhile, it would give a new idea in developing terahertz imaging technology based on strong-field nonlinear effect.

Translated title of the contribution	A Light-Emitting Diode-Based Strong-Field Terahertz Camera
Original language	Chinese (Traditional)
Article number	2411002
Journal	Guangxue Xuebao/Acta Optica Sinica
Volume	41
Issue number	24
DOIs	https://doi.org/10.3788/AOS202141.2411002
State	Published - 25 Dec 2021

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This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

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10.3788/AOS202141.2411002

Cite this

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title = "基于发光二极管的强场太赫兹相机",

abstract = "A strong-pulsed-field terahertz camera based on light emitting diode (LED) is reported in this paper. It is based on the operational principle that LED can generate nanosecond pulse-duration photovoltaic signal with a reproducible response to picosecond pulse-duration intense terahertz irradiation due to impact ionization when terahertz electric field strength is larger than 50 kV/cm. By employing this effect, we fabricate scanning and array LED-terahertz cameras. These devices have successfully captured images of focused terahertz beam profile generated in lithium niobate via the tilted pulse front technique. The proposed camera has characteristics of low cost, strong photovoltaic signal, rapid response, and large imaging area. Meanwhile, it would give a new idea in developing terahertz imaging technology based on strong-field nonlinear effect.",

keywords = "Imaging systems, Light emitting diode, Strong-pulsed-field terahertz, Terahertz imaging, Tilted pulse front",

author = "Shangqing Li and Chen Ouyang and Jinglong Ma and Baolong Zhang and Xiaojun Wu and Jihong Xu and Yutong Li",

year = "2021",

month = dec,

day = "25",

doi = "10.3788/AOS202141.2411002",

language = "繁体中文",

volume = "41",

journal = "Guangxue Xuebao/Acta Optica Sinica",

issn = "0253-2239",

publisher = "Chinese Laser Press",

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}

TY - JOUR

T1 - 基于发光二极管的强场太赫兹相机

AU - Li, Shangqing

AU - Ouyang, Chen

AU - Ma, Jinglong

AU - Zhang, Baolong

AU - Wu, Xiaojun

AU - Xu, Jihong

AU - Li, Yutong

PY - 2021/12/25

Y1 - 2021/12/25

N2 - A strong-pulsed-field terahertz camera based on light emitting diode (LED) is reported in this paper. It is based on the operational principle that LED can generate nanosecond pulse-duration photovoltaic signal with a reproducible response to picosecond pulse-duration intense terahertz irradiation due to impact ionization when terahertz electric field strength is larger than 50 kV/cm. By employing this effect, we fabricate scanning and array LED-terahertz cameras. These devices have successfully captured images of focused terahertz beam profile generated in lithium niobate via the tilted pulse front technique. The proposed camera has characteristics of low cost, strong photovoltaic signal, rapid response, and large imaging area. Meanwhile, it would give a new idea in developing terahertz imaging technology based on strong-field nonlinear effect.

AB - A strong-pulsed-field terahertz camera based on light emitting diode (LED) is reported in this paper. It is based on the operational principle that LED can generate nanosecond pulse-duration photovoltaic signal with a reproducible response to picosecond pulse-duration intense terahertz irradiation due to impact ionization when terahertz electric field strength is larger than 50 kV/cm. By employing this effect, we fabricate scanning and array LED-terahertz cameras. These devices have successfully captured images of focused terahertz beam profile generated in lithium niobate via the tilted pulse front technique. The proposed camera has characteristics of low cost, strong photovoltaic signal, rapid response, and large imaging area. Meanwhile, it would give a new idea in developing terahertz imaging technology based on strong-field nonlinear effect.

KW - Imaging systems

KW - Light emitting diode

KW - Strong-pulsed-field terahertz

KW - Terahertz imaging

KW - Tilted pulse front

UR - https://www.scopus.com/pages/publications/85125203787

U2 - 10.3788/AOS202141.2411002

DO - 10.3788/AOS202141.2411002

M3 - 文章

AN - SCOPUS:85125203787

SN - 0253-2239

VL - 41

JO - Guangxue Xuebao/Acta Optica Sinica

JF - Guangxue Xuebao/Acta Optica Sinica

IS - 24

M1 - 2411002

ER -

基于发光二极管的强场太赫兹相机

Abstract

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