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Cascade Uni-Traveling-Carrier Photodetector Array for Terahertz Applications

A cascade array structure and depleted layer thickness design method of uni-traveling-carrier photodetector (UTC-PD) for terahertz applications is proposed. The cascade array structure can increase the 3dB bandwidth from 203 GHz to 255 GHz compared to the high-speed single UTC-PD with a diameter of 3 μm by effectively reducing the overall device capacitance. The 3dB bandwidth can be further improved to 267 GHz by thickness optimization. The combination of cascade array structure and depleted layer thickness optimization can significantly improve the saturation output power of the device at 100, 200 and 300 GHz, which enables the design of cascade UTC-PD array to be applied in terahertz (THz) band.

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Informasi Detail

Judul Seri

IEEE JOURNAL OF QUANTUM ELECTRONICS; Vol.59 No.1 February 2023

No. Panggil

-

Penerbit

: .,

Deskripsi Fisik

p. 4400107

Bahasa

English

ISBN/ISSN

-

Klasifikasi

NONE

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

TERAHERTZ
PHOTODETECTOR
HIGH-SPEED
HIGH-POWER

Info Detail Spesifik

DOI: 10.1109/JQE.2022.3233091

Pernyataan Tanggungjawab

Jiawei Du, Xuejie Wang, Yongqing Huang, Shaoyu Wang, Mingxi Yang, Xiaofeng Duan, Kai Liu, Yisu Yang, Xiaomin Ren

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