NDLI: Low-loss hollow-core waveguide using high-contrast sub-wavelength grating

Please wait, while we are loading the content...

Low-loss hollow-core waveguide using high-contrast sub-wavelength grating

Content Provider	Semantic Scholar
Author	Ferrara, James Yang, Weijian Yeh, Anthony Gar-On Grutter, Karen E. Chase, Christopher H. Karagodsky, Vadim Parekh, Devang Yue, Yang Willner, Alan E. Wu, Ming C. Chang-Hasnain, Connie J.
Copyright Year	2012
Abstract	We present a novel form of hollow-core waveguiding that enables chip-scale integration. Light propagates in air along a zig-zag path between very highly-reflective Si metastructures comprised of a single layer of sub-wavelength high-contrast gratings (HCGs) without the aid of sidewalls. Top and bottom subwavelength HCGs separated by 9um of air and with periodicity perpendicular to the propagation of light reflect light at shallow angles with extremely low loss. The HCGs are patterned on SOI wafers with 340 nm-thick Si device layers engraved in a single etch step, and have been measured to have a 0.37 dB/cm propagation loss. Our work demonstrates the light-guiding properties of HCG hollow-core waveguides with a novel form of lateral beam confinement that uses subtle reflection phase changes between core and cladding HCG regions capable of bending light around 30 mm radius-of-curvature tracks.
File Format	PDF HTM / HTML
DOI	10.1117/12.909773
Alternate Webpage(s)	https://light.eecs.berkeley.edu/cch/paper_view/download2.php?id=163
Alternate Webpage(s)	http://nanophotonics.eecs.berkeley.edu/Publications/Conference/files/4186/Ferrara%20et%20al.%20-%202012%20-%20Low-loss%20hollow-core%20waveguide%20using%20high-contrast.pdf
Alternate Webpage(s)	https://doi.org/10.1117/12.909773
Volume Number	8270
Journal	Other Conferences
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

Central Library (ISO-9001:2015 Certified)
Indian Institute of Technology Kharagpur
Kharagpur, West Bengal, India | PIN - 721302

See location in the Map
03222 282435
Mail: support@ndl.gov.in

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in