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SUMMARY:Middle infrared tunable laser spectroscopy for molecular sensing: 
 from space to terrestrial applications - Dr Damien Weidmann (STFC)
DTSTART:20140519T131500Z
DTEND:20140519T143000Z
UID:TALK51722@talks.cam.ac.uk
CONTACT:Dr Amanda Maycock
DESCRIPTION:Fundamental rotational-vibrational absorption bands of molecul
 es have long been recognized as ideal to carry out quantitative\, sensitiv
 e\, and selective probing of molecular concentrations. As such\, the spect
 ral range covered by these bands is often referred as the “fingerprint
 ” region. Within this region\, atmospheric windows (3-5 µm and 8-12 µm
 ) where water vapour spectral interferences remain minimal are of particul
 ar interest for the development of practical spectroscopy-based sensors. T
 he advent\, and subsequent maturation\, of novel continuously tunable semi
 conductor laser sources operating in the fingerprint region has unlocked a
  wide breadth of applications spanning from fundamental ro-vibrational spe
 ctroscopy studies to deployment of operational molecular sensors.\nThe las
 er spectroscopy team at the space science and technology department of the
  Rutherford Appleton laboratory undertakes a wide portfolio of research an
 d development projects towards novel molecular sensing methods and instrum
 ents\, primarily using quantum cascade lasers. Whilst science drivers and 
 applications underpinning this activity have primarily belonged to the spa
 ce and atmospheric science areas\, increasingly\, many applications for wh
 ich compact\, deployable\, real time sensing is needed are spun off. A rev
 iew of the team activity covering coherent passive and active remote sound
 ing\, open-path\, and in-situ molecular sensing will be presented\, as wel
 l as insights on technological developments towards operational field depl
 oyment of middle infrared tunable laser spectrometers.\n
LOCATION:Unilever Lecture Theatre\, Department of Chemistry
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