Delay-time-enhanced flat-band photonic crystal waveguides with capsule-shaped holes on silicon nanomembrane

Yun Sheng Chen; Yang Zhao; Amir Hosseini; David Kwong; Wei Jiang; Seth R. Bank; Emanuel Tutuc; Ray T. Chen

doi:10.1109/JSTQE.2009.2020811

Delay-time-enhanced flat-band photonic crystal waveguides with capsule-shaped holes on silicon nanomembrane

Yun Sheng Chen, Yang Zhao, Amir Hosseini, David Kwong, Wei Jiang, Seth R. Bank, Emanuel Tutuc, Ray T. Chen

Research output: Contribution to journal › Article › peer-review

Abstract

A slow-group-velocity- and low-group-velocity-dispersion photonic crystal slab waveguide is designed by using capsule-shaped air holes in hexagonal lattice. The theoretical study shows that adjusting the aspect ratio of holes in the innermost rows can fine-tune the dispersion tail. The presented design can achieve nearly flat-band photonic crystal waveguides with group index of 2136 over the normalized bandwidth (Δω / ω) of 1.380.4. We also discuss the effects of the change in the holes aspect ratio combined with a slight size adjustment. The group index in the range of 2143 for normalized bandwidth of about 1.50.3 is obtained with the combination effect. The optimized designed exhibits a nearly constant group index of 21 over 22.7 nanometer bandwidth at λ = 1.55μm.

Original language	English (US)
Article number	5256334
Pages (from-to)	1510-1514
Number of pages	5
Journal	IEEE Journal on Selected Topics in Quantum Electronics
Volume	15
Issue number	5
DOIs	https://doi.org/10.1109/JSTQE.2009.2020811
State	Published - Sep 2009
Externally published	Yes

Keywords

Group velocity dispersion
Photonic crystal waveguide
Slow group velocity

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

Online availability

10.1109/JSTQE.2009.2020811

Library availability

Discover UIUC Full Text

Cite this

@article{b018fc9c78904578ad3de840fef9b9c3,

title = "Delay-time-enhanced flat-band photonic crystal waveguides with capsule-shaped holes on silicon nanomembrane",

abstract = "A slow-group-velocity- and low-group-velocity-dispersion photonic crystal slab waveguide is designed by using capsule-shaped air holes in hexagonal lattice. The theoretical study shows that adjusting the aspect ratio of holes in the innermost rows can fine-tune the dispersion tail. The presented design can achieve nearly flat-band photonic crystal waveguides with group index of 2136 over the normalized bandwidth (Δω / ω) of 1.380.4. We also discuss the effects of the change in the holes aspect ratio combined with a slight size adjustment. The group index in the range of 2143 for normalized bandwidth of about 1.50.3 is obtained with the combination effect. The optimized designed exhibits a nearly constant group index of 21 over 22.7 nanometer bandwidth at λ = 1.55μm.",

keywords = "Group velocity dispersion, Photonic crystal waveguide, Slow group velocity",

author = "Chen, {Yun Sheng} and Yang Zhao and Amir Hosseini and David Kwong and Wei Jiang and Bank, {Seth R.} and Emanuel Tutuc and Chen, {Ray T.}",

note = "Funding Information: Manuscript received January 3, 2009; revised January 28 2009, March 5, 2009, and March 29, 2009. Current version published October 7, 2009. This work was supported by the multidisciplinary university research initiative (MURI) program through the Air Force Office of Scientific Research (AFOSR).",

year = "2009",

month = sep,

doi = "10.1109/JSTQE.2009.2020811",

language = "English (US)",

volume = "15",

pages = "1510--1514",

journal = "IEEE Journal on Selected Topics in Quantum Electronics",

issn = "1077-260X",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "5",

}

TY - JOUR

T1 - Delay-time-enhanced flat-band photonic crystal waveguides with capsule-shaped holes on silicon nanomembrane

AU - Chen, Yun Sheng

AU - Zhao, Yang

AU - Hosseini, Amir

AU - Kwong, David

AU - Jiang, Wei

AU - Bank, Seth R.

AU - Tutuc, Emanuel

AU - Chen, Ray T.

N1 - Funding Information: Manuscript received January 3, 2009; revised January 28 2009, March 5, 2009, and March 29, 2009. Current version published October 7, 2009. This work was supported by the multidisciplinary university research initiative (MURI) program through the Air Force Office of Scientific Research (AFOSR).

PY - 2009/9

Y1 - 2009/9

N2 - A slow-group-velocity- and low-group-velocity-dispersion photonic crystal slab waveguide is designed by using capsule-shaped air holes in hexagonal lattice. The theoretical study shows that adjusting the aspect ratio of holes in the innermost rows can fine-tune the dispersion tail. The presented design can achieve nearly flat-band photonic crystal waveguides with group index of 2136 over the normalized bandwidth (Δω / ω) of 1.380.4. We also discuss the effects of the change in the holes aspect ratio combined with a slight size adjustment. The group index in the range of 2143 for normalized bandwidth of about 1.50.3 is obtained with the combination effect. The optimized designed exhibits a nearly constant group index of 21 over 22.7 nanometer bandwidth at λ = 1.55μm.

AB - A slow-group-velocity- and low-group-velocity-dispersion photonic crystal slab waveguide is designed by using capsule-shaped air holes in hexagonal lattice. The theoretical study shows that adjusting the aspect ratio of holes in the innermost rows can fine-tune the dispersion tail. The presented design can achieve nearly flat-band photonic crystal waveguides with group index of 2136 over the normalized bandwidth (Δω / ω) of 1.380.4. We also discuss the effects of the change in the holes aspect ratio combined with a slight size adjustment. The group index in the range of 2143 for normalized bandwidth of about 1.50.3 is obtained with the combination effect. The optimized designed exhibits a nearly constant group index of 21 over 22.7 nanometer bandwidth at λ = 1.55μm.

KW - Group velocity dispersion

KW - Photonic crystal waveguide

KW - Slow group velocity

UR - http://www.scopus.com/inward/record.url?scp=70350189958&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=70350189958&partnerID=8YFLogxK

U2 - 10.1109/JSTQE.2009.2020811

DO - 10.1109/JSTQE.2009.2020811

M3 - Article

AN - SCOPUS:70350189958

SN - 1077-260X

VL - 15

SP - 1510

EP - 1514

JO - IEEE Journal on Selected Topics in Quantum Electronics

JF - IEEE Journal on Selected Topics in Quantum Electronics

IS - 5

M1 - 5256334

ER -

Delay-time-enhanced flat-band photonic crystal waveguides with capsule-shaped holes on silicon nanomembrane

Abstract

Keywords

ASJC Scopus subject areas

Online availability

Library availability

Related links

Fingerprint

Cite this