Chip-based spectroscopy using microresonator frequency combs
Loading...
No Access Until
Permanent Link(s)
Collections
Other Titles
Authors
Abstract
The development of a spectroscopy device on a chip that could realize real-time, label-free and high-throughput detection of trace molecules presents one of the biggest challenges in sensing. This is particularly challenging in the mid-infrared (mid-IR) domain where strong and characteristic molecular absorption occurs but optical sources are still in full development. In the past decade, there has been a remarkable development of a miniaturized optical frequency comb source using parametric nonlinear interactions in microresonators. Such integrated devices present as unique tools for direct generation of broadband mid-IR light and ultrafast acquisition speed of molecular absorption information. In this thesis, we address the microresonator technology for the generation of a broadband modelocked frequency comb in the mid-IR. The properties of such microcombs can be precisely controlled, tuned, and characterized. We show that microresonator-based combs is not only an ideal testbed for studying a variety of nonlinear dynamics but, more importantly, can be used to realize a silicon-based platform for vibrational spectroscopy. We demonstrate two different types of mid-IR microcomb-based spectroscopy, dual-comb spectroscopy, and scanning comb spectroscopy which are suitable for condensed phase study and trace gas sensing, respectively.
Journal / Series
Volume & Issue
Description
Sponsorship
Date Issued
2018-08-30
Publisher
Keywords
Applied physics; integrated optics; mid-infrared optics; nonlinear photonics; optical frequency combs; Infrared Spectroscopy; Silicon Photonics; Optics
Location
Effective Date
Expiration Date
Sector
Employer
Union
Union Local
NAICS
Number of Workers
Committee Chair
Lipson, Michal
Committee Co-Chair
Committee Member
Rana, Farhan
Gaeta, Alexander L.
Gaeta, Alexander L.
Degree Discipline
Electrical and Computer Engineering
Degree Name
Ph. D., Electrical and Computer Engineering
Degree Level
Doctor of Philosophy
Related Version
Related DOI
Related To
Related Part
Based on Related Item
Has Other Format(s)
Part of Related Item
Related To
Related Publication(s)
Link(s) to Related Publication(s)
References
Link(s) to Reference(s)
Previously Published As
Government Document
ISBN
ISMN
ISSN
Other Identifiers
Rights
Attribution 4.0 International
Rights URI
Types
dissertation or thesis