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Compact Nonlinear Optical Devices in Silicon-Polymer Hybrid Material System


Wang, Guangxi (2009) Compact Nonlinear Optical Devices in Silicon-Polymer Hybrid Material System. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/VJX4-5T05.


Recently, integrated silicon photonics has become a topic of rising interests, due to its great potential to induce significant improvements in modern communication and computation systems. While optics is often viewed as a favorable solution to many issues faced by the rapidly evolving microelectronic technology, the high cost, large physical size, and discrete configuration of conventional optics have largely restricted its applications. The introduction of silicon nanophotonics permits a new look at the idea of incorporating optics with traditional electronic integrated circuits in a sensible and feasible fashion.

In this dissertation, emphasis is placed on investigating nonlinear devices built in silicon but complemented by nonlinear polymer materials. Basic optical guiding and coupling components for silicon on insulator platform are first discussed, followed by a detailed description of the design, fabrication, and testing procedures of a Pockels effect electro-optic modulator based on nonlinear polymer-coated silicon nanostructures. Discussion is further expanded on other related devices that also make use of the second-order nonlinear effect, and designs to improve the speed and efficiency of existing devices are also elaborated. Finally, a third-order nonlinear all-optical modulation device is presented with a series of carefully designed experiments to verify its ultrafast operation.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:nanofabrication; nonlinear optics
Degree Grantor:California Institute of Technology
Division:Engineering and Applied Science
Major Option:Electrical Engineering
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Scherer, Axel
Thesis Committee:
  • Scherer, Axel (chair)
  • Emami, Azita
  • Weinreb, Sander
  • Inoue, Yoku
  • Tai, Yu-Chong
Defense Date:15 September 2008
Record Number:CaltechETD:etd-03232009-014403
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:1073
Deposited By: Imported from ETD-db
Deposited On:29 May 2009
Last Modified:26 Nov 2019 19:13

Thesis Files

PDF (dissertation_wangg.pdf) - Final Version
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