Zobrazeno 1 - 10
of 188
pro vyhledávání: '"Gerhard J. Mueller"'
Autor:
Matthias Kessler, J. Goebel, Gerhard J. Mueller, Carola Oberhuettinger, Andreas Langmeier, H. Oberpriller
Publikováno v:
SPIE Proceedings.
Trace detection of toxic industrial compounds has been investigated with the help of a laser ion mobility spectrometer (LIMS). The LIMS was equipped with a tuneable UV laser source for enabling two-photon ionization of the analyte gases and an ion dr
Autor:
C. Oberhuettinger, Matthias Kessler, Gerhard J. Mueller, W. Heep, Andreas Langmeier, J. Goebel, H. Oberpriller
Publikováno v:
SPIE Proceedings.
Detection of explosives by ion mobility spectroscopy has become common in recent years. We demonstrate explosive detection with a novel Laser Ion Mobility Spectrometer (LIMS) developed at EADS Innovation Works. A Laser operating at 266nm was used for
Autor:
Andreas Langmeier, Gerhard J. Mueller, W. Heep, J. Goebel, C. Oberhuettinger, S. Beer, Matthias Kessler, H. Oberpriller
Publikováno v:
Proceedings SENSOR 2009, Volume II.
Ion Mobility Spectrometers (IMS) are frequently used to screen airline passengers and their luggage for explosives and explosive by-products. Traditionally, in IMS technology different kinds of molecules are distinguished on account of their differen
Autor:
C. Oberhuettinger, Andreas Langmeier, Matthias Kessler, H. Oberpriller, J. Goebel, Gerhard J. Mueller
Publikováno v:
Proceedings OPTO 2009 & IRS² 2009.
Trace detection of hydrocarbons has been investigated using a laser ion mobility spectrometer (LIMS). The LIMS instrument used employs resonant two-photon ionization as a mechanism for the generation of analyte gas ions. We find that LIMS easily ioni
Publikováno v:
Fourth International Symposium on Laser Precision Microfabrication.
A new field in laser processing is opened by the method of modifying the optical properties, i.e. the refractive index, absorption- and scattering-coefficient, at minimal mechanical stress inside the material. Focusing ultra short laser pulses inside
Publikováno v:
SPIE Proceedings.
A diagnostic method is described to detect differences between diseased and normal tissue from bladder carcinoma by FTIR-microspectroscopy and fiber-optics methods. Regions of interest on 10 μm thin tissue sections were mapped using an IR-microscope
Autor:
Klaus W. Berndt, Victor I. Masychev, Yuri N. Bulkin, Pavel Kapustin, Juergen Lademann, Wolfram Sterry, Martina C. Meinke, Heike Richter, Gerhard J. Mueller
Publikováno v:
SPIE Proceedings.
A two wavelengths CO2 laser was used to determine the glucose concentration in whole blood samples. For this purpose, the first laser wavelength λ1 was tuned to the maximum of the glucose absorption band at 1080 cm-1 and the second laser wavelength
Publikováno v:
SPIE Proceedings.
A new field in laser processing is opened by this method of modifying the optical properties, i.e. the refractive index, absorption- and scattering-coefficient, inside the material. Focusing ultra short laser pulses inside the transparent media allow
Autor:
Thomas Metzger, David Ashkenasi, Hans Joachim Eichler, Thomas Riesbeck, Gerhard J. Mueller, Holger Kern, Alexander Binder
Publikováno v:
SPIE Proceedings.
To meet the industry's demand for reducing machine cycle lengths concerning laser-drilling a Nd:YAG Master-Oscillator Power-Amplifier (MOPA)-system was developed at the LMTB-laboratories that emits high-power peak-pulses at excellent beam-quality. Pr
Autor:
Thomas Riesbeck, Alexander Binder, David Ashkenasi, Gerhard J. Mueller, Enrico Risse, Hans Joachim Eichler
Publikováno v:
SPIE Proceedings.
High beam quality is one of the most important properties for micro material processing with lasers. It facilitates slight focus diameters and due to high Raleigh length even at strong focusing drilling of holes with high aspect ratio. Together with