Scheduled System Maintenance on May 29th, 2015:
IEEE Xplore will be upgraded between 11:00 AM and 10:00 PM EDT. During this time there may be intermittent impact on performance. We apologize for any inconvenience.
By Topic

Narrow-Linewidth and Wavelength-Tunable Red-Light Emission From an Si-Quantum-Dot Embedded Oxynitride Distributed Bragg Reflector

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Chung-Lun Wu ; Grad. Inst. of Photonics & Optoelectron., Nat. Taiwan Univ., Taipei, Taiwan ; Yung-Hsiang Lin ; Gong-Ru Lin

Wavelength-tunable narrow-linewidth red-light emission generated from Si quantum dots (Si-QDs) that are embedded in Si-rich SiOx/SiNx:Si-QDs distributed Bragg reflector (DBR) are demonstrated using low-temperature and low-plasma chemical vapor deposition. With increasing layer thickness Δd of the 20-pair SiOx/SiN x:Si-QD DBR structure, its narrow linewidth and high-extinction-ratio transmittance peak between central and nearby stopband serve as high-Q filter to sharpen the broadband Si-QD photoluminescence (PL) from 140 to 19 nm. By comparing the PL intensity of 667 nm for a DBR with the 20-time multiplied single-pair case, an enhancement factor of 1.86 is in good agreement with the theoretical estimation of 1.74. The transmitted PL peak wavelength λp of PL spectrum is tunable from 667 to 706 nm, as predicted by a relationship between the shifted wavelength and the refractive index of Δλp ≅ 2 (nSiOx + nSiNx) Δd. The transmitted PL response can be simulated from the luminescence summation of each light-emitting layer within the DBR structure.

Published in:

Selected Topics in Quantum Electronics, IEEE Journal of  (Volume:18 ,  Issue: 6 )