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Emission Spectral Control of a Silicon Light Emitting Diode Fabricated by Dressed-Photon-Phonon Assisted Annealing Using a Short Pulse Pair
Joint Authors
Ohtsu, Motoichi
Wada, Naoki
Kawazoe, Tadashi
Source
Advances in Optical Technologies
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-07-06
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
We fabricated a high-efficiency infrared light emitting diode (LED) via dressed-photon-phonon (DPP) assisted annealing of a p-n homojunctioned bulk Si crystal.
The center wavelength in the electroluminescence (EL) spectrum of this LED was determined by the wavelength of a CW laser used in the DPP-assisted annealing.
We have proposed a novel method of controlling the EL spectral shape by additionally using a pulsed light source in order to control the number of phonons for the DPP-assisted annealing.
In this method, the Si crystal is irradiated with a pair of pulses having an arrival time difference between them.
The number of coherent phonons created is increased (reduced) by tuning (detuning) this time difference.
A Si-LED was subjected to DPP-assisted annealing using a 1.3 μm (hν=0.94 eV) CW laser and a mode-locked pulsed laser with a pulse width of 17 fs.
When the number of phonons was increased, the EL emission spectrum broadened toward the high-energy side by 200 meV or more.
The broadening towards the low-energy side was reduced to 120 meV.
American Psychological Association (APA)
Kawazoe, Tadashi& Wada, Naoki& Ohtsu, Motoichi. 2014. Emission Spectral Control of a Silicon Light Emitting Diode Fabricated by Dressed-Photon-Phonon Assisted Annealing Using a Short Pulse Pair. Advances in Optical Technologies،Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-511431
Modern Language Association (MLA)
Kawazoe, Tadashi…[et al.]. Emission Spectral Control of a Silicon Light Emitting Diode Fabricated by Dressed-Photon-Phonon Assisted Annealing Using a Short Pulse Pair. Advances in Optical Technologies No. 2014 (2014), pp.1-8.
https://search.emarefa.net/detail/BIM-511431
American Medical Association (AMA)
Kawazoe, Tadashi& Wada, Naoki& Ohtsu, Motoichi. Emission Spectral Control of a Silicon Light Emitting Diode Fabricated by Dressed-Photon-Phonon Assisted Annealing Using a Short Pulse Pair. Advances in Optical Technologies. 2014. Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-511431
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-511431