Efficient photon detectors using surface acoustic waves

Shujie Jiao; Pablo D. Batista; Klaus Biermann; Rudolf Hey; Paulo V. Santos

doi:10.1016/j.physe.2009.12.037

Efficient photon detectors using surface acoustic waves

Shujie Jiao^*
, Pablo D. Batista
, Klaus Biermann
, Rudolf Hey
, Paulo V. Santos

^*Corresponding author for this work

Paul Drude Institute for Solid State Electronics

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

1 Scopus citations

Abstract

An efficient photon detector based on the ambipolar transport of photogenerated electrons and holes by surface acoustic waves (SAWs) has been investigated. In the experiments, the photogenerated electrons and holes are separated and transported in a GaAs channel and electrically detected by a lateral pin junction. We show that the acoustic transport efficiency improves by using biased metallic guides along the SAW beam to create independent transport channels for electrons and holes. By optimizing the photon absorption efficiency and the amplitude of the SAW field, we demonstrated overall transport efficiencies above 85% for transport lengths exceeding 200μm.

Original language	English
Pages (from-to)	2857-2861
Number of pages	5
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	42
Issue number	10
DOIs	https://doi.org/10.1016/j.physe.2009.12.037
State	Published - Sep 2010
Externally published	Yes

Keywords

Ambipolar acoustic transport
Photon detection
Surface acoustic waves

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10.1016/j.physe.2009.12.037

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title = "Efficient photon detectors using surface acoustic waves",

abstract = "An efficient photon detector based on the ambipolar transport of photogenerated electrons and holes by surface acoustic waves (SAWs) has been investigated. In the experiments, the photogenerated electrons and holes are separated and transported in a GaAs channel and electrically detected by a lateral pin junction. We show that the acoustic transport efficiency improves by using biased metallic guides along the SAW beam to create independent transport channels for electrons and holes. By optimizing the photon absorption efficiency and the amplitude of the SAW field, we demonstrated overall transport efficiencies above 85\% for transport lengths exceeding 200μm.",

keywords = "Ambipolar acoustic transport, Photon detection, Surface acoustic waves",

author = "Shujie Jiao and Batista, \{Pablo D.\} and Klaus Biermann and Rudolf Hey and Santos, \{Paulo V.\}",

year = "2010",

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doi = "10.1016/j.physe.2009.12.037",

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T1 - Efficient photon detectors using surface acoustic waves

AU - Jiao, Shujie

AU - Batista, Pablo D.

AU - Biermann, Klaus

AU - Hey, Rudolf

AU - Santos, Paulo V.

PY - 2010/9

Y1 - 2010/9

N2 - An efficient photon detector based on the ambipolar transport of photogenerated electrons and holes by surface acoustic waves (SAWs) has been investigated. In the experiments, the photogenerated electrons and holes are separated and transported in a GaAs channel and electrically detected by a lateral pin junction. We show that the acoustic transport efficiency improves by using biased metallic guides along the SAW beam to create independent transport channels for electrons and holes. By optimizing the photon absorption efficiency and the amplitude of the SAW field, we demonstrated overall transport efficiencies above 85% for transport lengths exceeding 200μm.

AB - An efficient photon detector based on the ambipolar transport of photogenerated electrons and holes by surface acoustic waves (SAWs) has been investigated. In the experiments, the photogenerated electrons and holes are separated and transported in a GaAs channel and electrically detected by a lateral pin junction. We show that the acoustic transport efficiency improves by using biased metallic guides along the SAW beam to create independent transport channels for electrons and holes. By optimizing the photon absorption efficiency and the amplitude of the SAW field, we demonstrated overall transport efficiencies above 85% for transport lengths exceeding 200μm.

KW - Ambipolar acoustic transport

KW - Photon detection

KW - Surface acoustic waves

UR - https://www.scopus.com/pages/publications/77957990829

U2 - 10.1016/j.physe.2009.12.037

DO - 10.1016/j.physe.2009.12.037

M3 - 文章

AN - SCOPUS:77957990829

SN - 1386-9477

VL - 42

SP - 2857

EP - 2861

JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

IS - 10

ER -

Efficient photon detectors using surface acoustic waves

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Keywords

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