Zobrazeno 1 - 10
of 109
pro vyhledávání: '"Anatoliy A. Kosterev"'
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
Publikováno v:
SIAM Journal on Applied Mathematics. 71:309-332
Trace gas sensors that are compact and portable are being deployed for use in a variety of applications including disease diagnosis via breath analysis, monitoring of atmospheric pollutants and greenhouse gas emissions, control of industrial processe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e222a7f6f5b3d36165e6bd1eb6a18a9
https://doi.org/10.1137/100807181
https://doi.org/10.1137/100807181
Publikováno v:
Applied Physics B. 101:649-659
A gas sensor based on quartz-enhanced photoacoustic spectroscopy and using near-infrared, fiber-coupled diode lasers as an excitation source was developed for chemical analysis of gas mixtures containing H2S, CO2, and CH4 at concentrations from 0 to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d1050daa357f9beaa4e228cd3be6c87
https://doi.org/10.1007/s00340-010-4183-7
https://doi.org/10.1007/s00340-010-4183-7
Publikováno v:
Applied Physics B. 100:627-635
The impact of design parameters of a spectrophone for quartz-enhanced photoacoustic spectroscopy on its performance was investigated. The microresonator of spectrophone is optimized based on an experimental study. The results show that a 4.4 mm-long
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d0b53692b87b3c9c29271dfa2b54e34
https://doi.org/10.1007/s00340-010-4072-0
https://doi.org/10.1007/s00340-010-4072-0
Publikováno v:
Applied Physics B. 100:173-180
A quartz enhanced photoacoustic spectroscopy sensor designed for fast response was used in combina- tion with a pulsed external cavity quantum cascade laser to rapidly acquire gas absorption data over the 1196- 1281 cm −1 spectral range. The system
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3cf54bc0c974ede4611de1c9db707c79
https://doi.org/10.1007/s00340-010-3975-0
https://doi.org/10.1007/s00340-010-3975-0
Autor:
Barry McManus, Claire F. Gmachl, Robert F. Curl, Gerard Wysocki, Michael Pusharsky, Rafal Lewicki, Federico Capasso, Frank K. Tittel, Anatoliy A. Kosterev
Publikováno v:
Chemical Physics Letters. 487:1-18
In the short space of 15 years since their first demonstration, quantum cascade lasers have become the most useful sources of tunable mid-infrared laser radiation. This Letter describes these developments in laser technology and the burgeoning applic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::18c1173f61a03373b93f8a85ef11d435
https://doi.org/10.1016/j.cplett.2009.12.073
https://doi.org/10.1016/j.cplett.2009.12.073
Publikováno v:
Applied Physics B. 94:673-680
Quartz-enhanced photoacoustic spectroscopy (QEPAS) sensors are based on a recent approach to photoa- coustic detection which employs a quartz tuning fork as an acoustic transducer. These sensors enable detection of trace gases for air quality monitor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fbfc277129fdcb35159cc75859a2bf3f
https://doi.org/10.1007/s00340-009-3379-1
https://doi.org/10.1007/s00340-009-3379-1
Publikováno v:
Applied Physics B. 95:813-824
A sensor based on quartz-enhanced photoacoustic spectroscopy (QEPAS) was evaluated for the detection of trace levels of ethylene at atmospheric pressure using a fiber coupled DFB diode laser emitting in the 1.62 µm spectral range. A noise-equivalent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0e3ecdab889536c74a15c4dad568d78
https://doi.org/10.1007/s00340-008-3306-x
https://doi.org/10.1007/s00340-008-3306-x
Publikováno v:
SAE International Journal of Aerospace. 1:331-336
A spectroscopic trace gas sensor using a distributed feedback diode laser at λ=1.53 μm and based on quartz enhanced photoacoustic spectroscopy technique is described. The sensor is capable of quasi-simultaneous quantification of trace ammonia, hydr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66b03853655b738a48a4289bf68ffaff
https://doi.org/10.4271/2008-01-2091
https://doi.org/10.4271/2008-01-2091
Publikováno v:
Applied Physics B. 92:103-109
A trace gas sensor based on quartz enhanced photoacoustic spectroscopy (QEPAS) was evaluated using humidified nitrogen samples and ambient air. Relaxation processes following vibrational excitation of 2ν3 state of CH4 were investigated. Sensor perfo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e77ca647fa9234cc91bc7094d4bd5534
https://doi.org/10.1007/s00340-008-3056-9
https://doi.org/10.1007/s00340-008-3056-9