Improved spectral response of an InAs QD RC-SACM-APD with Ta 2O5/SiO2 DBRs

Dong Ho Kim, Hong Joo Song, Cheong Hyun Roh, Cheol Koo Hahn, Shi Jong Leem, Noriaki Tsurumachi, Tae Geun Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

We report the improvement in the spectral response of an InAs QD resonant-cavity separate absorption, charge, and multiplication avalanche photodetector (RC-SACM-APD) by increasing the quantum efficiency (QE) using dielectric Ta2O5/SiO2 top distributed Bragg reflectors (DBRs). The reflectivities of the top and bottom DBRs were numerically designed to be 70% and 99.1%, respectively, in order to maximize the QE. The spectral response characteristics of the InAs QD RC-SACM-APD with enhanced top DBRs was remarkably improved at 1098 nm, which is close to the target wavelength of 1100 nm, and its full width at half-maximum (FWHM) was 19 nm. The photoluminescence (PL) spectra revealed an intense and narrow single-mode peak at 1101 nm. The FWHM of the PL peak was as narrow as 8 nm and the difference in wavelength between the spectrum and the PL peak was as small as 3 nm.

Original languageEnglish
Title of host publication2007 7th IEEE International Conference on Nanotechnology - IEEE-NANO 2007, Proceedings
Pages681-685
Number of pages5
DOIs
Publication statusPublished - 2007 Dec 1
Event2007 7th IEEE International Conference on Nanotechnology - IEEE-NANO 2007 - Hong Kong, China
Duration: 2007 Aug 22007 Aug 5

Other

Other2007 7th IEEE International Conference on Nanotechnology - IEEE-NANO 2007
CountryChina
CityHong Kong
Period07/8/207/8/5

Fingerprint

Distributed Bragg reflectors
Cavity resonators
Bragg reflectors
cavity resonators
Photodetectors
spectral sensitivity
multiplication
avalanches
photometers
Photoluminescence
Full width at half maximum
Quantum efficiency
photoluminescence
quantum efficiency
Wavelength
wavelengths
reflectance

Keywords

  • Quantum efficiency (QE)
  • Resonant-cavity effect (RCE)
  • Spectral response characteristic
  • Wavelength-selective-absorption

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics

Cite this

Kim, D. H., Song, H. J., Roh, C. H., Hahn, C. K., Leem, S. J., Tsurumachi, N., & Kim, T. G. (2007). Improved spectral response of an InAs QD RC-SACM-APD with Ta 2O5/SiO2 DBRs. In 2007 7th IEEE International Conference on Nanotechnology - IEEE-NANO 2007, Proceedings (pp. 681-685). [4601281] https://doi.org/10.1109/NANO.2007.4601281

Improved spectral response of an InAs QD RC-SACM-APD with Ta 2O5/SiO2 DBRs. / Kim, Dong Ho; Song, Hong Joo; Roh, Cheong Hyun; Hahn, Cheol Koo; Leem, Shi Jong; Tsurumachi, Noriaki; Kim, Tae Geun.

2007 7th IEEE International Conference on Nanotechnology - IEEE-NANO 2007, Proceedings. 2007. p. 681-685 4601281.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kim, DH, Song, HJ, Roh, CH, Hahn, CK, Leem, SJ, Tsurumachi, N & Kim, TG 2007, Improved spectral response of an InAs QD RC-SACM-APD with Ta 2O5/SiO2 DBRs. in 2007 7th IEEE International Conference on Nanotechnology - IEEE-NANO 2007, Proceedings., 4601281, pp. 681-685, 2007 7th IEEE International Conference on Nanotechnology - IEEE-NANO 2007, Hong Kong, China, 07/8/2. https://doi.org/10.1109/NANO.2007.4601281
Kim DH, Song HJ, Roh CH, Hahn CK, Leem SJ, Tsurumachi N et al. Improved spectral response of an InAs QD RC-SACM-APD with Ta 2O5/SiO2 DBRs. In 2007 7th IEEE International Conference on Nanotechnology - IEEE-NANO 2007, Proceedings. 2007. p. 681-685. 4601281 https://doi.org/10.1109/NANO.2007.4601281
Kim, Dong Ho ; Song, Hong Joo ; Roh, Cheong Hyun ; Hahn, Cheol Koo ; Leem, Shi Jong ; Tsurumachi, Noriaki ; Kim, Tae Geun. / Improved spectral response of an InAs QD RC-SACM-APD with Ta 2O5/SiO2 DBRs. 2007 7th IEEE International Conference on Nanotechnology - IEEE-NANO 2007, Proceedings. 2007. pp. 681-685
@inproceedings{2cf8f1cf8e9c4528a6f362503751f839,
title = "Improved spectral response of an InAs QD RC-SACM-APD with Ta 2O5/SiO2 DBRs",
abstract = "We report the improvement in the spectral response of an InAs QD resonant-cavity separate absorption, charge, and multiplication avalanche photodetector (RC-SACM-APD) by increasing the quantum efficiency (QE) using dielectric Ta2O5/SiO2 top distributed Bragg reflectors (DBRs). The reflectivities of the top and bottom DBRs were numerically designed to be 70{\%} and 99.1{\%}, respectively, in order to maximize the QE. The spectral response characteristics of the InAs QD RC-SACM-APD with enhanced top DBRs was remarkably improved at 1098 nm, which is close to the target wavelength of 1100 nm, and its full width at half-maximum (FWHM) was 19 nm. The photoluminescence (PL) spectra revealed an intense and narrow single-mode peak at 1101 nm. The FWHM of the PL peak was as narrow as 8 nm and the difference in wavelength between the spectrum and the PL peak was as small as 3 nm.",
keywords = "Quantum efficiency (QE), Resonant-cavity effect (RCE), Spectral response characteristic, Wavelength-selective-absorption",
author = "Kim, {Dong Ho} and Song, {Hong Joo} and Roh, {Cheong Hyun} and Hahn, {Cheol Koo} and Leem, {Shi Jong} and Noriaki Tsurumachi and Kim, {Tae Geun}",
year = "2007",
month = "12",
day = "1",
doi = "10.1109/NANO.2007.4601281",
language = "English",
isbn = "1424406080",
pages = "681--685",
booktitle = "2007 7th IEEE International Conference on Nanotechnology - IEEE-NANO 2007, Proceedings",

}

TY - GEN

T1 - Improved spectral response of an InAs QD RC-SACM-APD with Ta 2O5/SiO2 DBRs

AU - Kim, Dong Ho

AU - Song, Hong Joo

AU - Roh, Cheong Hyun

AU - Hahn, Cheol Koo

AU - Leem, Shi Jong

AU - Tsurumachi, Noriaki

AU - Kim, Tae Geun

PY - 2007/12/1

Y1 - 2007/12/1

N2 - We report the improvement in the spectral response of an InAs QD resonant-cavity separate absorption, charge, and multiplication avalanche photodetector (RC-SACM-APD) by increasing the quantum efficiency (QE) using dielectric Ta2O5/SiO2 top distributed Bragg reflectors (DBRs). The reflectivities of the top and bottom DBRs were numerically designed to be 70% and 99.1%, respectively, in order to maximize the QE. The spectral response characteristics of the InAs QD RC-SACM-APD with enhanced top DBRs was remarkably improved at 1098 nm, which is close to the target wavelength of 1100 nm, and its full width at half-maximum (FWHM) was 19 nm. The photoluminescence (PL) spectra revealed an intense and narrow single-mode peak at 1101 nm. The FWHM of the PL peak was as narrow as 8 nm and the difference in wavelength between the spectrum and the PL peak was as small as 3 nm.

AB - We report the improvement in the spectral response of an InAs QD resonant-cavity separate absorption, charge, and multiplication avalanche photodetector (RC-SACM-APD) by increasing the quantum efficiency (QE) using dielectric Ta2O5/SiO2 top distributed Bragg reflectors (DBRs). The reflectivities of the top and bottom DBRs were numerically designed to be 70% and 99.1%, respectively, in order to maximize the QE. The spectral response characteristics of the InAs QD RC-SACM-APD with enhanced top DBRs was remarkably improved at 1098 nm, which is close to the target wavelength of 1100 nm, and its full width at half-maximum (FWHM) was 19 nm. The photoluminescence (PL) spectra revealed an intense and narrow single-mode peak at 1101 nm. The FWHM of the PL peak was as narrow as 8 nm and the difference in wavelength between the spectrum and the PL peak was as small as 3 nm.

KW - Quantum efficiency (QE)

KW - Resonant-cavity effect (RCE)

KW - Spectral response characteristic

KW - Wavelength-selective-absorption

UR - http://www.scopus.com/inward/record.url?scp=52949105783&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=52949105783&partnerID=8YFLogxK

U2 - 10.1109/NANO.2007.4601281

DO - 10.1109/NANO.2007.4601281

M3 - Conference contribution

SN - 1424406080

SN - 9781424406081

SP - 681

EP - 685

BT - 2007 7th IEEE International Conference on Nanotechnology - IEEE-NANO 2007, Proceedings

ER -