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Quartz-enhanced photoacoustic spectroscopy is a photoacoustic spectroscopy technique which substitutes the conventional microphone by a quartz tuning fork which enables very sensitive detection in small volumes. The piezo-electric properties are used
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______610::45688f74aef8c35b8192bc93d01a4cf6
https://publica.fraunhofer.de/handle/publica/249893
https://publica.fraunhofer.de/handle/publica/249893
Autor:
Orghici, R.1, Willer, U.1,2 u.willer@pe.tu-clausthal.de, Gierszewska, M.1, Waldvogel, S. R.2,3, Schade, W.1,2
Publikováno v:
Applied Physics B: Lasers & Optics. Feb2008, Vol. 90 Issue 2, p355-360. 6p. 2 Diagrams, 1 Chart, 6 Graphs.
Autor:
Willer, U.1,2 ulrike.willer@tu-clausthal.de, Wilk, R.3, Schippers, W.1, Böttger, S.1, Nodop, D.1, Schossig, T.1, Schade, W.1,2, Mikulics, M.3, Koch, M.3, Walther, M.4, Niemann, H.5, Güttler, B.5
Publikováno v:
Applied Physics B: Lasers & Optics. Mar2007, Vol. 87 Issue 1, p13-16. 4p. 1 Color Photograph, 3 Diagrams, 4 Graphs.
Publikováno v:
Applied Physics B: Lasers & Optics. May2006, Vol. 83 Issue 2, p175-179. 5p. 1 Diagram, 6 Graphs.
Publikováno v:
Applied Physics B: Lasers & Optics. Oct2003, Vol. 77 Issue 5, p509-513. 5p.
A QEPAS device is demonstrated where the quartz tuning fork (QTF) is not only excited by a laser-induced acoustic wave but also driven electrically by a CMOS circuit at the same time. The gas absorption is measured as the sum of the optically and ele
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______610::af5ef389c3866d036dfafa90e8b78588
https://publica.fraunhofer.de/handle/publica/240481
https://publica.fraunhofer.de/handle/publica/240481
Molecular rotational states of nitrogen and oxygen molecules at room temperature and atmospheric pressure are excited by femtosecond double- and multi-pulses with variable temporal pulse distances, and quartz-enhanced photoacoustic spectroscopy is us
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______610::2f0aedd9f2e89330bc3be2428e0e24b3
https://publica.fraunhofer.de/handle/publica/235363
https://publica.fraunhofer.de/handle/publica/235363
Autor:
Köhring, M., Huang, S., Jahjah, M., Jiang, W., Ren, W., Willer, U., Caneba, C., Yang, L., Nagrath, D., Schade, W., Tittel, F.K.
The development of a sensitive sensor for detecting nitric oxide (NO) emissions from biological samples is reported. The sensor is based on tunable diode laser absorption spectroscopy (TDLAS) using a continuous wave, thermoelectrically cooled quantum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______610::ae4fb843122148836046d8a06d939c26
https://publica.fraunhofer.de/handle/publica/237214
https://publica.fraunhofer.de/handle/publica/237214
In this work, we report the synthesis of ZnO nanowalls and nanocombs by the vapor-liquid-solid (VLS) method. ZnO nanocombs are applied in nanoscale functional devices such as nanocantilevers, UV nanolaser arrays, optical nanogratings, and nanopolariz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______610::aa51b2d2c3341f7ab65f8e63f776173c
https://publica.fraunhofer.de/handle/publica/233891
https://publica.fraunhofer.de/handle/publica/233891