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Computational Silicon Nanophotonic Design.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Computational Silicon Nanophotonic Design./
Author:	Shen, Bing.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2017,
Description:	169 p.
Notes:	Source: Dissertation Abstracts International, Volume: 78-10(E), Section: B.
Contained By:	Dissertation Abstracts International78-10B(E).
Subject:	Optics. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10262412
ISBN:	9781369775112

Computational Silicon Nanophotonic Design.
Shen, Bing.

Computational Silicon Nanophotonic Design. - Ann Arbor : ProQuest Dissertations & Theses, 2017 - 169 p.

Source: Dissertation Abstracts International, Volume: 78-10(E), Section: B.

Thesis (Ph.D.)--The University of Utah, 2017.

Photonic integration circuits (PICs) have received overwhelming attention in the past few decades due to various advantages over electronic circuits including absence of Joule effect and huge bandwidth. The most significant problem obstructing their commercial application is the integration density, which is largely determined by a signal wavelength that is in the order of microns. In this dissertation, we are focused on enhancing the integration density of PICs to warrant their practical applications.

ISBN: 9781369775112Subjects--Topical Terms:

517925
Optics.

Computational Silicon Nanophotonic Design.
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100 1 $a Shen, Bing. $3 3344133
245 1 0 $a Computational Silicon Nanophotonic Design.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2017
300 $a 169 p.
500 $a Source: Dissertation Abstracts International, Volume: 78-10(E), Section: B.
500 $a Adviser: Rajesh Menon.
502 $a Thesis (Ph.D.)--The University of Utah, 2017.
520 $a Photonic integration circuits (PICs) have received overwhelming attention in the past few decades due to various advantages over electronic circuits including absence of Joule effect and huge bandwidth. The most significant problem obstructing their commercial application is the integration density, which is largely determined by a signal wavelength that is in the order of microns. In this dissertation, we are focused on enhancing the integration density of PICs to warrant their practical applications.
520 $a In general, we believe there are three ways to boost the integration density. The first is to downscale the dimension of individual integrated optical component. As an example, we have experimentally demonstrated an integrated optical diode with footprint 3 x 3 mum2, an integrated polarization beamsplitter with footprint 2.4 x 2.4 mum2, and a waveguide bend with effective bend radius as small as 0.65 mum. All these devices offer the smallest footprint when compared to their alternatives. A second option to increase integration density is to combine the function of multiple devices into a single compact device. To illustrate the point, we have experimentally shown an integrated mode-converting polarization beamsplitter, and a free-space to waveguide coupler and polarization beamsplitter. Two distinct functionalities are offered in one single device without significantly sacrificing the footprint. A third option for enhancing integration density is to decrease the spacing between the individual devices. For this case, we have experimentally demonstrated an integrated cloak for nonresonant (waveguide) and resonant (microring-resonator) devices. Neighboring devices are totally invisible to each other even if they are separated as small as lambda/2 apart.
520 $a Inverse design algorithm is employed in demonstrating all of our devices. The basic premise is that, via nanofabrication, we can locally engineer the refractive index to achieve unique functionalities that are otherwise impossible. A nonlinear optimization algorithm is used to find the best permittivity distribution and a focused ion beam is used to define the fine nanostructures.
520 $a Our future work lies in demonstrating active nanophotonic devices with compact footprint and high efficiency. Broadband and efficient silicon modulators, and all-optical and high-efficiency switches are envisioned with our design algorithm.
590 $a School code: 0240.
650 4 $a Optics. $3 517925
650 4 $a Electrical engineering. $3 649834
650 4 $a Nanotechnology. $3 526235
690 $a 0752
690 $a 0544
690 $a 0652
710 2 $a The University of Utah. $b Electrical and Computer Engineering. $3 1676187
773 0 $t Dissertation Abstracts International $g 78-10B(E).
790 $a 0240
791 $a Ph.D.
792 $a 2017
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10262412