|
|
|
News from our groupInverse Doppler Effect:
http://www.engr.wisc.edu/news/headlines/2005/May23.html Quantum dots on membranes:
http://www.engr.wisc.edu/news/headlines/2005/May02.html Probing membrane proteins: http://www.engr.wisc.edu/news/headlines/2005/Feb21.html Bill Gates visits campus: Comb-FTIR: RESEARCHERS DEVELOP NEW FTIR SPECTROMETER FOR RAPID, REMOTE CHEMICAL SENSING Although Fourier-transform infrared (FTIR) spectroscopy is a standard tool in many chemical and biological laboratories, its application is limited to the investigation of relatively slow phenomena. With collaborators at the Max Planck Institute of Biochemistry, Electrical and Computer Engineering Professor Dan van der Weide has now developed a new type of frequency-comb FTIR (c-FTIR) spectrometer that acquires IR spectra several orders of magnitude faster than commercial FTIR. In a paper published in the October 31 issue of Optics Express, the researchers also report that the laser-like, infrared probing beam of their c-FTIR spectrometer, with its dramatically improved brightness, allows them to sense chemical vapor fluctuations at distances of 22 meters. These new developments open the way for many more applications, they report. For example, c-FTIR makes possible real-time, remote chemical sensing of transient, non-repeatable phenomena, like combustion, plasmas and explosions, all in environments inhospitable to conventional instrumentation. The technique could also be used to sense non-repetitive phenomena such as those found in protein folding dynamics and pulsed magnetic fields research. Other news items |
|
Send mail to
danvdw@engr.wisc.edu with
questions or comments about this web site.
|
