Integrated Nanophotonic Waveguide-Based Devices for IR and Raman Gas Spectroscopy

On-chip devices for absorption spectroscopy and Raman spectroscopy have been developing rapidly in the last few years, triggered by the growing availability of compact and affordable tunable lasers, detectors, and on-chip spectrometers. Material processing that is compatible with mass production has...

Full description

Saved in:
Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2021-10, Vol.21 (21), p.7224
Main Authors: Alberti, Sebastián, Datta, Anurup, Jágerská, Jana
Format: Article
Language:English
Subjects:
Absorption spectroscopy
Cladding
Fysikk: 430
gas sensing
Gases
Infrared absorption
Infrared spectroscopy
integrated sensors
Lasers
Light emitting diodes
Light sources
Mass production
Matematikk og Naturvitenskap: 400
Mathematics and natural science: 400
Miniaturization
Photonics
Physics: 430
Power
Quantum dots
Radiation
Raman spectroscopy
Review
Selectivity
Sensitivity analysis
Sensors
Silicon nitride
Sorbents
Spectrometers
Spectrum analysis
Tunable lasers
Unmanned aerial vehicles
VDP
Waveguides
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:On-chip devices for absorption spectroscopy and Raman spectroscopy have been developing rapidly in the last few years, triggered by the growing availability of compact and affordable tunable lasers, detectors, and on-chip spectrometers. Material processing that is compatible with mass production has been proven to be capable of long low-loss waveguides of sophisticated designs, which are indispensable for high-light-analyte interactions. Sensitivity and selectivity have been further improved by the development of sorbent cladding. In this review, we discuss the latest advances and challenges in the field of waveguide-enhanced Raman spectroscopy (WERS) and waveguide infrared absorption spectroscopy (WIRAS). The development of integrated light sources and detectors toward miniaturization will be presented, together with the recent advances on waveguides and cladding to improve sensitivity. The latest reports on gas-sensing applications and main configurations for WERS and WIRAS will be described, and the most relevant figures of merit and limitations of different sensor realizations summarized.
ISSN:1424-8220
1424-8220
DOI:10.3390/s21217224