Science Instruments



Cheers to 20 years with Picarro

If you’ve collaborated with Picarro in the last two decades, there’s a good chance you’ve worked with -- or at least heard of -- Chris Rella. Chris joined Picarro as employee #41, in the year 2000, back when the company name was Informed Diagnostics. He was here in 2003, when Picarro created its first commercial product, 488-nm Cyan laser, a biomedical laser. He also helped to develop our first commercial CRDS product, Gen 1 CRDS, in 2005. Since then, Chris has continued to make enormous contributions to Picarro’s technology and user community.  Basically, he’s one of the Picarro originals, and we couldn’t be more honored to have him with us all these years. 

Chris joined Picarro after establishing an early reputation as a promising researcher.  After earning his Bachelor’s degree in Mathematical Physics at Case Western Reserve University, Chris moved west to Stanford University, where he earned his Master’s degree in Physics in 1992. During that time, Chris was also awarded a graduate research fellowship by the National Science Foundation. After earning his Ph.D. from Stanford in 1997, Chris conducted post-doctoral research in Physics at the FOM Instituut AMOLF in Amsterdam (1997-99) and then as a research fellow at Stanford’s W.W. Hansen Experimental Physics Laboratory (HEPL).

At Picarro, Chris has continued to advance our scientific understanding and technologies with his research and publications.  Chris is an inventor on 38 issued Picarro U.S. patents, with more pending.  His first patents were filed back in 2002, and his most recent patent issued earlier this year.  Chris’s inventions include basic CRDS technologies and optimizations, valuable application technologies used in most Picarro analyzer products, and new technologies on Picarro’s advanced R&D roadmap.  Chris has also continued to contribute to the research literature by co-authoring many published articles, including some selected peer-reviewed articles listed here.

Cheers to Dr. Chris Rella for 20 years of excellence at Picarro!


Selected peer-reviewed publications:

  1. Miles, N. L., Martins, D. K., Richardson, S. J., Rella, C. W., Arata, C., Lauvaux, T., ... & Sweeney, C. (2018). Calibration and field testing of cavity ring-down laser spectrometers measuring CH4, CO2, and δ13 CH4 deployed on towers in the Marcellus Shale region. Atmospheric Measurement Techniques, 11(3), 1273-1295.

  2. Johnson, J. E., & Rella, C. W. (2017). Effects of variation in background mixing ratios of N2, O2, and Ar on the measurement of δ18O-H2O and δ2H-H2O values by cavity ring-down spectroscopy. Atmospheric measurement Techniques, 10(8), 3073-3073.

  3. Rella, C. W., Tsai, T. R., Botkin, C. G., Crosson, E. R., & Steele, D. (2015). Measuring Emissions from Oil and Natural Gas Well Pads Using the Mobile Flux Plane Technique. Environmental science & technology, 49(7), 4742-4748.

  4. Rella, C. W., Hoffnagle, J., He, Y., & Tajima, S. (2015). Local and regional scale measurements of CH4, δ13CH4, and C2H6 in the Uintah Basin using a mobile stable isotope analyzer.

  5. Mѳnster, J. G., Samuelsson, J., Kjeldsen, P., Rella, C. W., & Scheutz, C. (2014). Quantifying methane emission from fugitive sources by combining tracer release and downwind measurements-A sensitivity analysis based on multiple field surveys. Waste Management.

  6. Yver-Kwok, C. E., Müller, D., Caldow, C., Lebegue, B., Mѳnster, J. G., Rella, C. W., Scheutz, C., Schmidt, M., Ramonet, M., Warneke, T., Broquet, G., and Ciais, P. (2013): Estimation of waste water treatment plant methane emissions: methodology and results from a short campaign, Atmos. Meas. Tech. Discuss., 6, 9181-9224, doi:10.5194/amtd-6-9181-2013.

  7. Willi A. Brand, Heike Geilmann, Eric R. Crosson, and Chris W. Rella, (2009): "Cavity ring-down spectroscopy versus high-temperature conversion isotope ratio mass spectrometry; a case study on δ2H and δ18O of pure water samples and alcohol/water mixtures”, Rapid Communications in Mass Spectrometry 23, 1879-1884.