Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Joshua B. Paul"'
Publikováno v:
Optical Sensors and Sensing Congress (ES, FTS, HISE, Sensors).
A new, ultrasensitive lunchbox-sized middle infrared laser-based commercial gas sensor is described, with examples of monitoring key pullutants (CO, HCHO), greenhouse gases (CH4, N2O) with 1ppb accuracy levels in a variety of field applications. Comm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e76a678be2df74d5793bd3e4211ccf1
https://doi.org/10.1364/es.2019.etu2a.1
https://doi.org/10.1364/es.2019.etu2a.1
Publikováno v:
Applied Physics B: Lasers and Optics. 75:261-265
A novel instrument that employs a high-finesse optical cavity as an absorption cell has been developed for sensitive measurements of gas mixing ratios using near-infrared diode lasers and absorption-spectroscopy techniques. The instrument employs an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff4583795dc8f6a3c5da5e28e39d6d1e
https://doi.org/10.1007/s00340-002-0971-z
https://doi.org/10.1007/s00340-002-0971-z
Publikováno v:
Chemical Physics Letters. 307:343-349
A new approach is described in which continuous, narrow band laser sources are employed with the recently developed integrated cavity output spectroscopy technique to obtain sensitive, quantitative absorption spectra in a simple experimental configur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e127f6260b4105f277712832b5f6236
https://doi.org/10.1016/s0009-2614(99)00547-3
https://doi.org/10.1016/s0009-2614(99)00547-3
Publikováno v:
Applied optics. 48(13)
The demonstration of continuous wave intracavity difference-frequency generation in the mid-infrared (mid-IR) is presented. A cavity for pump laser enhancement is constructed around a periodically poled lithium niobate crystal, and the cavity length
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83210a60a4620695d789c4bbf9b3367d
https://pubmed.ncbi.nlm.nih.gov/19412221
https://pubmed.ncbi.nlm.nih.gov/19412221
Publikováno v:
Applied optics. 40(36)
A new technique that enables frequency-resolved cavity ringdown absorption spectra to be obtained over a large optical bandwidth by a single laser shot is described. The technique, ringdown spectral photography (RSP), simultaneously employs two key p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0558ed2f911b448c6df56c79749ad502
https://pubmed.ncbi.nlm.nih.gov/18364983
https://pubmed.ncbi.nlm.nih.gov/18364983
Publikováno v:
Digital Holography and Three-Dimensional Imaging.
Difference frequency generation lasers offer immediate access to the O-H, N-H and CH stretch region between 3-4 micron that is particularly suited for sensing of key greenhouse and other atmospheric trace gases. Article not available.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80be906113218ea1dd510baee4dd0e57
https://doi.org/10.1364/dh.2008.pdpjma13
https://doi.org/10.1364/dh.2008.pdpjma13
Publikováno v:
Fiber Lasers IV: Technology, Systems, and Applications.
Broadly tunable fiber laser system has been demonstrated at room temperature. The IR fiber laser system consists of two high peak power individual pulse fiber lasers and their difference frequency generation (DFG) in Periodically Poled Lithium Niobat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65fbeeef508356a6b73c197ef5ee7db8
https://doi.org/10.1117/12.696736
https://doi.org/10.1117/12.696736
Publikováno v:
SPIE Proceedings.
A novel instrument that employs a high-finesse optical cavity as an absorption cell has been developed for sensitive measurements of gas mixing ratios using near-infrared diode lasers and absorption-spectroscopy techniques. The instrument employs an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dde2daf434f5dded44cb83dffe539994
https://doi.org/10.1117/12.451461
https://doi.org/10.1117/12.451461
Autor:
Janelle R. Anderson, Alfred Y. Cho, Federico Capasso, Anthony O'Keefe, L. B. Lapson, James J. Scherer, Joshua B. Paul, Claire F. Gmachl
Publikováno v:
SPIE Proceedings.
Although the ability of high finesse optical cavities to provide effective absorption path-lengths exceeding 10 km. has been known for quite some time, attempts to utilize this property for the purposes of high-resolution spectroscopy have often resu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c25186467911874c5eacad101f85e11
https://doi.org/10.1117/12.455722
https://doi.org/10.1117/12.455722
Publikováno v:
Laser Applications to Chemical and Environmental Analysis.
A novel laser-based absorption diagnostic technique based on off-axis paths in high-finesse optical cavities provides high measurement sensitivities (~2×10−10 cm−1). Applications to environmental monitoring and industrial process control using n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7468379e0565166bed7101ae5a80dd2a
https://doi.org/10.1364/lacea.2002.fd3
https://doi.org/10.1364/lacea.2002.fd3