Zobrazeno 1 - 9
of 9
pro vyhledávání: '"J. H. Doty"'
Autor:
Frank K. Tittel, David Thomazy, Lei Dong, Anatoliy A. Kosterev, J. H. Doty, Vincenzo Spagnolo
Publikováno v:
Applied Physics B. 103:735-742
A novel spectroscopic technique based on modulation spectroscopy with two excitation sources and quartz enhanced photoacoustic spectroscopy is described. We demonstrated two potential applications of this detection technique. First, we investigated t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e94e205aa1fb49f5b26468637fcab2d2
https://doi.org/10.1007/s00340-011-4494-3
https://doi.org/10.1007/s00340-011-4494-3
Autor:
David Thomazy, Anatoliy A. Kosterev, Frank K. Tittel, J. H. Doty, Vincenzo Spagnolo, Lei Dong
Publikováno v:
SPIE Proceedings.
An innovative spectroscopic technique based on balancing and cancellation of modulated signals induced by two excitation sources. We used quartz enhanced photoacoustic spectroscopy (QEPAS) in a 2f wavelength modulation mode as an absorption sensing t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6cd1224a2526fa477faeab559dc4aed
https://doi.org/10.1117/12.886272
https://doi.org/10.1117/12.886272
Autor:
Lei Dong, Frank K. Tittel, Rafal Lewicki, Anatoliy A. Kosterev, David Thomazy, R. F. Curl, J. H. Doty, Gerard Wysocki
Publikováno v:
NATO Science for Peace and Security Series B: Physics and Biophysics ISBN: 9789400707689
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05cd367d2e453314fb56dcb71238a8e7
https://doi.org/10.1007/978-94-007-0769-6_24
https://doi.org/10.1007/978-94-007-0769-6_24
Novel methods and laser spectroscopic systems for accurately measuring the concentration of compounds are disclosed herein. The disclosed methods utilize a modulation cancellation technique resulting in a significantly increase in the sensitivity and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3eaa08a0f36da10c464a41d320a3486d
http://hdl.handle.net/11589/16806
http://hdl.handle.net/11589/16806
Autor:
R. F. Curl, Anatoliy A. Kosterev, David Thomazy, Rafal Lewicki, Lei Dong, J. H. Doty, Gerard Wysocki, Frank K. Tittel
Publikováno v:
2009 International Workshop Terahertz and Mid Infrared Radiation: Basic Research and Practical Applications.
Recent advances in the development of sensors based on the use of quantum cascade lasers (QCLs) for the sensitive, selective detection, quantification and monitoring of both small and large molecular gas species with resolved and unresolved spectrosc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30ac867ecbc399c9512191cf407a17d8
https://doi.org/10.1109/teramir.2009.5379659
https://doi.org/10.1109/teramir.2009.5379659
Autor:
J. H. Doty, Timothy Day, Steven F. Solga, David Thomazy, Y.A. Bakhirkin, Deborah Kane, Lei Dong, Frank K. Tittel, Terence H. Risby, Anatoliy A. Kosterev, Rafal Lewicki
Publikováno v:
Conference on Lasers and Electro-Optics/International Quantum Electronics Conference.
Quantum cascade laser based breath sensor platform for medical applications employing a quartz-enhanced photoacoustic spectroscopy technique is reported. The detection sensitivity for exhaled ammonia is at ≪10 ppbv level with 1 s time resolution.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f32997f0ec8703e7238664b1d80ec3ec
https://doi.org/10.1364/cleo.2009.cms6
https://doi.org/10.1364/cleo.2009.cms6
Publikováno v:
2008 Conference on Lasers and Electro-Optics.
Magnetic rotation spectroscopy of nitric oxide at most favorable Q(3/2) transition at 1875.8 cm-1 is reported. Detection limit (1sigma) at 5 ppb level was obtained for a ~44 cm long active optical path with 1s lock-in time constant.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87b476a2d94f222a320d1ccad16bd7ae
https://doi.org/10.1109/cleo.2008.4551192
https://doi.org/10.1109/cleo.2008.4551192
Publikováno v:
Laser Applications to Chemical, Security and Environmental Analysis.
The selection of the specific molecular transition is of great importance to achieve best sensitivity with Faraday rotation spectroscopy. Application of broadly-tunable external-cavity quantum cascade laser allowed targeting the optimum NO-Q(3/2) tra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a124b089ac64a30fed4fd692e5e9e30
https://doi.org/10.1364/lacsea.2008.lmb3
https://doi.org/10.1364/lacsea.2008.lmb3
Autor:
R G, Orlando, J H, Doty
Publikováno v:
Journal of the American Optometric Association. 67(2)
Ocular sports trauma is a leading cause of permanent vision loss in the United States. Various studies have examined the nature of injury, based on retrospective emergency room data. Knowledge of the epidemiology of ocular sports trauma will help the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::f9f0e2c4bdcb896be9a1bcc33fa6d910
https://pubmed.ncbi.nlm.nih.gov/9120205
https://pubmed.ncbi.nlm.nih.gov/9120205