Assistant Professor Education: B. S. University of New Mexico (1995); Ph.D. Havard University (2000); Postdoctoral Fellow, Stanford University (2001). Awards: J. L. Riebsomer Memorial Award (1993); John D. Clark Memorial Award (1994); Paul Mozley Award (1995); Finalist for the Hertz Fellowship (1996); Gordon Fellowship (1997). Email: Manish.Gupta@oregonstate.edu Office: 249 Gilbert Hall Lab: 218 Gilbert Hall Phone: 541-737-6704 FAX: 541-737-2062 Research Group Website: http://www.chemistry.oregonstate.edu/gupta/ Bioanalytical and Enviromental Chemistry Website: http://www.chemistry.oregonstate.edu/analytical/

Our research efforts involve the development of innovative, laser-based analytical techniques and their application to studying a variety of environmental issues.  An especial research focus is global climate change with projects that include:

• The real-time quantification of stable isotopes in atmospheric samples, water reservoirs, and ice core gases.
• Fabricating and deploying miniaturized instrumentation for in-situ measurements aboard Unmanned Aerial Vehicles and Autonomous Underwater Vehicles.
• Development of next-generation laser sensing technologies for aerosol characterization, trace metal quantification, and threat detection.

• High-Frequency Field Deployable Isotope Analyzer for Hydrological Applications. Water Resources Res. 2009, in press.
  
• An isolated line-shape model based on the Keilson-Storer function for velocity changes. II. Molecular Dynamics Simulations and the Q(1) lines for pure H₂. J. Chem. Phys. Submitted.
  
• Microwave Plasma Generation and Filtered Transport of O₂(a¹D_g). Plasma Sources Sci. Technol. 2009, in press.
• Development of a Rapid On-Line Acetylene Sensor for Industrial Hydrogenation Reactor Optimization Using Off-Axis Integrated Cavity Output Spectroscopy. Appl. Spectrosc, 2008, 62 (1), 59-65.
• Off-axis Cavity Ringdown Measurements of Trace Iodine. Sens. and Actuat. B, 2008, 129 (1), 158-162.
• Quantitative Determination of the O(3P) Density via Visible Cavity-Enhanced Spectroscopy. Appl. Phys. Lett. 2006 89 (24) 241503 - 24505.
• Quantitative Determination of the Q(1) Quadrupole Hydrogen Absorption in the Near-Infrared via Off-Axis ICOS. Chem. Phys. Lett. 2005, 418 (1-3), 11.
• Cavity-Enhanced Quantum-Cascade Laser-Based Instrument for Carbon Monoxide Measurements. Appl. Opt. 2005, 44 (31), 6712-6717.
• Quantitative Determination of Singlet Oxygen Density and Temperature for Oxygen-Iodine Laser Applications. Chem. Phys. Lett. 2004, 400, 42-46.
• Multiplex Integrated Cavity Output Spectroscopy of Cold PAH Cations. Chem. Phys. Lett. 2004, 387 (4-6), 287-294.
• Recent Advances in Off-Axis Integrated Cavity Output Spectroscopy. Iinvited paper in Diode Lasers and Applications, A. Fried, ed., Proc. SPIE 2002, 4817.
• Cavity-Enhanced Spectroscopy in Optical Fibers,” Opt. Lett. 2002, 27 (21), 1878-1880.
• Sensitive Absorption Measurements in the Near-Infrared Region Using Off-Axis Integrated Cavity Output Spectroscopy. Appl. Phys. B. 2002, 75 (2-3) 261-265.