Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/121961
Title: DEEP SUBWAVELENGTH METAL PATTERNS FOR IMPROVING PERFORMANCE OF TERAHERTZ PHOTOMIXER AND PASSIVE COMPONENT
Authors: WU QING YANG STEVE
Keywords: Terahertz, Nano-electrodes, Photomixing, LT-GaAs, Broadband antireflection, Deep-subwavelength
Issue Date: 3-Aug-2015
Citation: WU QING YANG STEVE (2015-08-03). DEEP SUBWAVELENGTH METAL PATTERNS FOR IMPROVING PERFORMANCE OF TERAHERTZ PHOTOMIXER AND PASSIVE COMPONENT. ScholarBank@NUS Repository.
Abstract: Deep sub-wavelength metallic structures forming unique tip-to-tip nano-electrodes, which provide the nano-antenna effect, are employed at the active area of the THz photomixer. Comparing with photomixer utilizing conventional interdigitated electrodes, this tip-to-tip nano-electrodes photomixer outperforms by about two orders magnitude in output intensity. Additionally the branchlike nano-electrodes structure having more carrier collection points is designed to multiply the nano-antenna effect. The output intensity of branchlike electrodes photomixer is about one order magnitude higher than that of tip-to-tip electrodes photomixer with the same laser illuminated area. Using deep sub-wavelength periodic thin metallic lamellar gratings, a broadband anti-reflection coating for 0.06?3 THz range is demonstrated for the first time. Utilizing two dimensional square mesh grating, polarization insensitive anti-reflection coating is demonstrated for the first time. The measured reflectance from anti-reflection coated sample is reduced over by 99% compared with a non-coated sample in the 0.06?3 THz range.
URI: http://scholarbank.nus.edu.sg/handle/10635/121961
Appears in Collections:Ph.D Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
00-Title Page.pdf10.66 kBAdobe PDF

OPEN

NoneView/Download
0-Front Matter.pdf294.46 kBAdobe PDF

OPEN

NoneView/Download
1-Chapter 1.pdf629.64 kBAdobe PDF

OPEN

NoneView/Download
2-Chapter 2.pdf1 MBAdobe PDF

OPEN

NoneView/Download
3-Chapter 3.pdf729.17 kBAdobe PDF

OPEN

NoneView/Download
4-Chapter 4.pdf996.69 kBAdobe PDF

OPEN

NoneView/Download
5-Chapter 5.pdf927.97 kBAdobe PDF

OPEN

NoneView/Download
6-Chapter 6.pdf774.1 kBAdobe PDF

OPEN

NoneView/Download
7-Chapter 7.pdf172.26 kBAdobe PDF

OPEN

NoneView/Download
8-Appendix.pdf287.46 kBAdobe PDF

OPEN

NoneView/Download

Page view(s)

52
checked on Dec 14, 2018

Download(s)

569
checked on Dec 14, 2018

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.