Hybrid Faraday rotation spectrometer for subppm detection of atmospheric O2

Eric J. Zhang; Brian Brumfield; Gerard Wysocki

doi:10.1364/OE.22.015957

Hybrid Faraday rotation spectrometer for subppm detection of atmospheric O₂

Eric J. Zhang, Brian Brumfield, Gerard Wysocki

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

33 Scopus citations

Abstract

Faraday rotation spectroscopy (FRS) of O₂ is performed at atmospheric conditions using a DFB diode laser and permanent rare-earth magnets. Polarization rotation is detected with a hybrid-FRS detection method that combines the advantages of two conventional approaches: balanced optical-detection and conventional FRS with an optimized analyzer offset angle for maximum sensitivity enhancement. A measurement precision of 0.6 ppmv·Hz-^1/2 for atmospheric O₂ has been achieved. The theoretical model of hybrid detection is described, and the calculated detection limits are in excellent agreement with experimental values.

Original language	English (US)
Pages (from-to)	15957-15968
Number of pages	12
Journal	Optics Express
Volume	22
Issue number	13
DOIs	https://doi.org/10.1364/OE.22.015957
State	Published - Jun 30 2014

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

Access to Document

10.1364/OE.22.015957

Cite this

@article{7b64394ce2ea41c6b12b0840ebd7f9bc,

title = "Hybrid Faraday rotation spectrometer for subppm detection of atmospheric O2",

abstract = "Faraday rotation spectroscopy (FRS) of O2 is performed at atmospheric conditions using a DFB diode laser and permanent rare-earth magnets. Polarization rotation is detected with a hybrid-FRS detection method that combines the advantages of two conventional approaches: balanced optical-detection and conventional FRS with an optimized analyzer offset angle for maximum sensitivity enhancement. A measurement precision of 0.6 ppmv·Hz-1/2 for atmospheric O2 has been achieved. The theoretical model of hybrid detection is described, and the calculated detection limits are in excellent agreement with experimental values.",

author = "Zhang, {Eric J.} and Brian Brumfield and Gerard Wysocki",

year = "2014",

month = jun,

day = "30",

doi = "10.1364/OE.22.015957",

language = "English (US)",

volume = "22",

pages = "15957--15968",

journal = "Optics Express",

issn = "1094-4087",

publisher = "The Optical Society",

number = "13",

}

TY - JOUR

T1 - Hybrid Faraday rotation spectrometer for subppm detection of atmospheric O2

AU - Zhang, Eric J.

AU - Brumfield, Brian

AU - Wysocki, Gerard

PY - 2014/6/30

Y1 - 2014/6/30

N2 - Faraday rotation spectroscopy (FRS) of O2 is performed at atmospheric conditions using a DFB diode laser and permanent rare-earth magnets. Polarization rotation is detected with a hybrid-FRS detection method that combines the advantages of two conventional approaches: balanced optical-detection and conventional FRS with an optimized analyzer offset angle for maximum sensitivity enhancement. A measurement precision of 0.6 ppmv·Hz-1/2 for atmospheric O2 has been achieved. The theoretical model of hybrid detection is described, and the calculated detection limits are in excellent agreement with experimental values.

AB - Faraday rotation spectroscopy (FRS) of O2 is performed at atmospheric conditions using a DFB diode laser and permanent rare-earth magnets. Polarization rotation is detected with a hybrid-FRS detection method that combines the advantages of two conventional approaches: balanced optical-detection and conventional FRS with an optimized analyzer offset angle for maximum sensitivity enhancement. A measurement precision of 0.6 ppmv·Hz-1/2 for atmospheric O2 has been achieved. The theoretical model of hybrid detection is described, and the calculated detection limits are in excellent agreement with experimental values.

UR - http://www.scopus.com/inward/record.url?scp=84903689459&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84903689459&partnerID=8YFLogxK

U2 - 10.1364/OE.22.015957

DO - 10.1364/OE.22.015957

M3 - Article

C2 - 24977851

AN - SCOPUS:84903689459

SN - 1094-4087

VL - 22

SP - 15957

EP - 15968

JO - Optics Express

JF - Optics Express

IS - 13

ER -

Hybrid Faraday rotation spectrometer for subppm detection of atmospheric O₂

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this