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Laser Applications to Chemical, Security and Environmental Analysis (2012)

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  • Laser Applications to Chemical, Security and Environmental Analysis (LACSEA) 2012 paper: JW1A.1
  • OSA Technical Digest (CD)
  • Speiser, Jochen
  • Fifteen years after first commercialization, the Thin Disk Laser covers a broad spectrum of applications. Nevertheless, a lot of challenges remain, e.g. further scaling of power and...

  • Laser Applications to Chemical, Security and Environmental Analysis (LACSEA) 2012 paper: JW1A.2
  • OSA Technical Digest (CD)
  • Fan, Tso Yee
  • Beam combining of laser arrays with high efficiency and good beam quality for power and radiance scaling is a long-standing problem in laser technology. Recently, significant progress...

  • Laser Applications to Chemical, Security and Environmental Analysis (LACSEA) 2012 paper: JW2A.1
  • OSA Technical Digest (CD)
  • Russell, Philip
  • Single-mode hollow core PCF provides an ideal environment for studying pressure-controlled nonlinear interactions between laser light and gases. An recent success is the efficient...

  • Laser Applications to Chemical, Security and Environmental Analysis (LACSEA) 2012 paper: JW2A.2
  • OSA Technical Digest (CD)
  • Gord, James R
  • Optical measurement techniques are powerful tools for detailed study of combustion chemistry and physics. Ultrafast (picosecond- and femtosecond-pulsed) lasers are driving the...

  • Laser Applications to Chemical, Security and Environmental Analysis (LACSEA) 2012 paper: LM1B.2
  • OSA Technical Digest (CD)
  • Dogariu, Arthur; Pidwerbetsky, Alex
  • We demonstrate fast and efficient detection of trace explosives using backscattered collinear CARS. Vibrational fingerprints of sub-microgram targets are analyzed in real-time....

  • Laser Applications to Chemical, Security and Environmental Analysis (LACSEA) 2012 paper: LM1B.3
  • OSA Technical Digest (CD)
  • Dantus, Marcos
  • Sensitivity and selectivity of CARS signal from a single-beam laser setup are evaluated under real-time imaging conditions. Practical implementation would require ...

  • Laser Applications to Chemical, Security and Environmental Analysis (LACSEA) 2012 paper: LM1B.4
  • OSA Technical Digest (CD)
  • Diddams, Scott
  • Various implementations of optical frequency combs will be presented. Recent applications of frequency combs to spectroscopic problems in scientific and ...

  • Laser Applications to Chemical, Security and Environmental Analysis (LACSEA) 2012 paper: LM1B.5
  • OSA Technical Digest (CD)
  • Ma, Lin; Li, Xuesong; Roy, Sukesh; Caswell, Andrew; Gord, James R; Plemmons, David; An, Xinliang; Sanders, Scott T
  • This paper reports the demonstration of a 30-laser-beam tomography system in a J85 turbojet engine for the imaging of temperature and water vapor concentration at an overall repetition...

  • Laser Applications to Chemical, Security and Environmental Analysis (LACSEA) 2012 paper: LM2B.1
  • OSA Technical Digest (CD)
  • Geiser, Peter; Dang, Dung D; Bohman, Axel F; Kaspersen, Peter L
  • Mid-infrared measurements of sulfur dioxide at gas-temperatures up to 400 °C have been performed using a continuous-wave room-temperature quantum cascade laser and second harmonic...

  • Laser Applications to Chemical, Security and Environmental Analysis (LACSEA) 2012 paper: LM2B.2
  • OSA Technical Digest (CD)
  • Gmachl, Claire
  • Quantum Cascade laser performance continues to increase rapidly based on new understanding of materials and interfaces, quantum designs, and optical cavities/waveguides. We review...

  • Laser Applications to Chemical, Security and Environmental Analysis (LACSEA) 2012 paper: LM2B.3
  • OSA Technical Digest (CD)
  • Fill, Matthias; Felder, Ferdinand; Rahim, Mohamed; Khiar, Amir; Zogg, Hans
  • Continuously tunable Vertical External Cavity Surface Emitting Lasers (VECSEL) have been realized, emitting in the 3-5 µm range. Pulsed output power at room temperature operation is...

  • Laser Applications to Chemical, Security and Environmental Analysis (LACSEA) 2012 paper: LM2B.4
  • OSA Technical Digest (CD)
  • Gomez, Anthony; Silver, Joel A
  • A high-precision isotopic CO<sub>2</sub> measurement system is being developed that removes effects from pressure, temperature and moisture, and that has characteristics...

  • Laser Applications to Chemical, Security and Environmental Analysis (LACSEA) 2012 paper: LM2B.5
  • OSA Technical Digest (CD)
  • Meyer, Jerry R; Merritt, Chalres D; Bewley, William W; Canedy, Chadwick L; Kim, Chul Soo; Abell, Joshua; Vurgaftman, Igor; Kim, Mijin
  • We report cw interband cascade lasers operating to 109 C, which at room temperature emit at wavelengths > 5.5 microns with output powers > 150 mW, wallplug efficiencies > 13%,...

  • Laser Applications to Chemical, Security and Environmental Analysis (LACSEA) 2012 paper: LM2B.6
  • OSA Technical Digest (CD)
  • Fuchs, Frank; Hugger, Stefan; Yang, Quankui; Kinzer, Michel; Bronner, Wolfgang; Lösch, Rainer; Aidam, Rolf; Degreif, Kai; Konz, Werner; Rademacher, Sven; Schnürer, Frank; Schweikert, Wenka
  • Based on broadly tunable external cavity quantum lasers (EC-QCL) an imaging system has been developed for stand-off detection of traces of explosives. A similar EC-QCL serves for...

  • Laser Applications to Chemical, Security and Environmental Analysis (LACSEA) 2012 paper: LM3B.1
  • OSA Technical Digest (CD)
  • Emmenegger, Lukas; Manninen, Albert; Tuzson, Bela; Köster, Jan-Reent; Wunderlin, Pascal; Mohn, Joachim
  • We report the first continuous measurements of 15N in N<sub>2</sub>O (?15N? and ?15N?) by QCL absorption spectroscopy at elevated and ambient mixing ratios with a 0.1‰...

  • Laser Applications to Chemical, Security and Environmental Analysis (LACSEA) 2012 paper: LM3B.2
  • OSA Technical Digest (CD)
  • Dutta, Prashanta
  • “Lab-on-a-chip” microfluidic devices can be used for various bioanalytical experiments such as sensing single molecules, separation of cells, and purification of proteins.

  • Laser Applications to Chemical, Security and Environmental Analysis (LACSEA) 2012 paper: LM3B.4
  • OSA Technical Digest (CD)
  • Somesfalean, Gabriel; Lou, Xiutao; Svanberg, Sune; Zhang, Zhiguo
  • A method for elemental mercury detection was demonstrated by employing multimode laser radiation at 254 nm in combination with correlation spectroscopy. The UV light was generated by...

  • Laser Applications to Chemical, Security and Environmental Analysis (LACSEA) 2012 paper: LM3B.5
  • OSA Technical Digest (CD)
  • Fjodorow, Peter; Leal, Luis; Loehden, Benjamin; Kuznetsova, Svetlana; Sengstock, Klaus; Baev, Valery M
  • Intracavity absorption spectroscopy with a broadband Er-doped fiber laser is applied for real time monitoring of the CO<sub>2</sub> concentration in human...

  • Laser Applications to Chemical, Security and Environmental Analysis (LACSEA) 2012 paper: LM3B.6
  • OSA Technical Digest (CD)
  • Mandon, Julien; Högman, Marieann; Merkus, Peter J F M; van Amsterdam, Jan; Harren, Frans J M; Cristescu, Simona M
  • Exhaled Nitric Oxide is considered as an indicator of asthma diagnostic. We present a QCL-based sensor for sub-ppbv detection and compare its sensitivity and selectivity with...

  • Laser Applications to Chemical, Security and Environmental Analysis (LACSEA) 2012 paper: LM5.1B.1
  • OSA Technical Digest (CD)
  • Fink, Manfred; Varghese, Philip; Borysow, Jacek
  • A novel Raman spectral analyzer will be used to measure the concentrations of dilute species in complex systems with high resolutions (0.3 cm<sup>-1</sup>),...
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