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David, Nate, and Prof. Rieker travel to JPL in Pasadena to work on their latest high temperature absorption spectroscopy data.

Prof. Rieker gave an invited talk at the EUCI Methane Emissions Stakeholder meeting in San Diego California.

Caroline Alden's paper "Single-Blind Quantification of Natural Gas Leaks from 1 km Distance Using Frequency Combs" has been published in Environmental Science & Technology, ACS Publications

Anthony Torres and Prof. Rieker head to AIAA Scitech, where Anthony presented his paper: “Progress Toward Dual Frequency Comb Spectroscopy in a Rapid Compression Machine.”

Broadband coherent cavity-enhanced dual-comb spectroscopy - paper published in��.

The Rieker lab presents three papers at the OSA Light and Energy Congress on Sentosa Island in Singapore.

That sure looks like the diffuser section of a wind tunnel. What are Sean, Alex, and Amanda are up to?

Professor Rieker wins the 2018��Peter Werle Early Career Scientist Award��at the FLAIR 2018 Conference.

Amanda Makowiecki, Ryan Cole, and Professor Rieker attended the 2018 Field Laser Applications in Industry and Research (FLAIR) conference in Assisi, Italy. Amanda and Prof. Rieker presented research posters, and Ryan gave a talk.

Torrey Hayden and Prof. Rieker travel the 37th International Symposium on Combustion in Dublin, Ireland. Torrey presented her paper that is now published in the proceedings of the combustion institute “Characterization of OH, H2O, and temperature profiles in industrial flame treatment systems interacting with polymer films.” Here is the only photo that did not feature a Guiness.

Jason Christopher’s paper titled “Parameter estimation for complex thermal-fluid flows using approximate Bayesian computation” was accepted for publication at��

Jason Christopher successfully defended his dissertation, “Approximate Bayesian Computation for Parameter Estimation in Complex Thermal-Fluid Systems” and is off to the Air Force to operationally test multi-billion dollar space systems.

Ryan Cole’s poster titled “Improving Optical Absorption Models for Harsh Planetary Atmospheres: Laboratory Spectroscopy at Venus Surface Conditions” won a Chambliss Astronomy Achievement Student Award at the 232nd meeting of the American Astronomical Society in Denver.

Congrats to Torrey Hayden on the successful defense of her dissertation “Wavelength modulation spectroscopy of industrial flame systems.” She is off to a position at Zolo Technologies in Louisville, CO!

The Rieker lab goes to DC. Prof. Rieker, Robbie Wright, and LongPath CEO Ted Weaver meet with Colorado Senator Michael Bennet to discuss the lab’s methane leak detection technology at the ARPA-E showcase in DC.

Check out Greg Rieker and Caroline Alden appearing on����They discuss the significant scale and business of methane leak detection and the advantages of continuous monitoring systems like the those utilized by��

Sean Coburn's paper on field based trace gas measurement using a mobile dual frequency comb spectrometer is published in��.

Caroline Alden's paper on atmospheric inversions for trace gas detection and quantification using long open-path laser measurements is published in��.

Paul Schroeder's paper on a high temperature H2O Voigt lineshape database utilizing dual frequency comb measurements is published in��.

A new company is born! LongPath Technologies, the laboratory’s first spin-out, is official. Watch a video on the technology��.

Professor Rieker presents a Ted-style talk at the����at Colorado State.

Torrey Hayden and Ryan Cole made a great showing at the annual Colorado Photonics Industry Association () annual meeting. Torrey took home her second CPIA best poster award, becoming the reining Rieker lab poster award champion.

Eleanor Waxman’s paper comparing simultaneous measurements using the NIST and CU dual-comb systems over the same path is published in��.

California or bust! Robbie Wright and Amanda Makowiecki packed up a dual frequency comb system and drove it to California where it is now doing continuous and remote-controlled (from Colorado) monitoring of methane from an oil and gas facility.

Best wishes to Jinyu Yang, who completed his Master’s degree with the Rieker lab working on high-temperature spectroscopy of water vapor.

Congratulations to Doctor��Paul Schroeder for the successful defense and acceptance of his PhD dissertation: "Dual comb spectroscopy of high temperature environments”!!!

Go team! The Rieker lab celebrates the beginning of the new academic year with a fierce game of kickball.

Congratulations to Paul Schroeder (and co-authors Jinyu Yang and Prof. Rieker) on the recent publication of their paper "Broadband, high-resolution investigation of advanced absorption line shapes at high temperature". The article is out now in Physical Review A.

Professor Greg Rieker and PhD students Amanda Makowiecki and Ryan Cole traveled to the Gordon Research Conference on Laser Diagnostics in Combustion. Amanda and Ryan presented posters and Greg gave an invited talk. The three also got to do some downhill mountain biking in the local Vermont mountains!

Congratulations to new PhD student Liz Strong on her selection for an NSF graduate research fellowship. This highly selective fellowship will allow Liz to pursue independent, out-of-the-box ideas over the next several years.

Kevin Cossel’s paper on laser spectroscopy between a ground-based frequency comb and a quadcopter appears in��, and gets highlighted in several news sources, including the��.

Paul Schroeder’s paper testing the HITRAN and HITEMP databases to high temperature water vapor absorption measurements is published in the��!

Huge congratulations to Ryan Cole, who won a highly coveted NASA Earth and Space Science Fellowship to use dual frequency comb absorption spectroscopy to study water vapor and carbon dioxide mixtures in conditions identical to Venus atmosphere. His proposal was titled "A High Temperature, High Pressure Optical Absorption Model for Water Vapor in the Venus Atmosphere". Out of this world, Ryan!

Prof. Julie Steinbrenner and Greg Rieker finish the inaugural offering of their new Thermofluids Capstone course. The course is designed to give undergraduates the opportunity for hands-on laboratory experience, and analysis of real-world thermofluids systems that bring together their knowledge in thermodynamics, heat transfer, and fluid dynamics.

Rieker lab field trip! Robbie Wright, Caroline Alden and Sean Coburn took a trip to Platteville, Colorado, to attend the CDPHE Air Pollution Control Division's open house and onsite demonstrations for inspections of atmospheric condensate storage tank facilities.

Professor Greg Rieker and Robbie Wright field questions from fellow attendees at the 2017��. At the Summit Technology Showcase the ARPA-E team presented new field results, demonstrating the location and sizing of small, controlled methane leaks with dual frequency comb spectroscopy.

The Rieker lab is featured in a��CU news release, that is picked up by various outlets, including��.

Congratulations to Torrey Hayden on the publication of her first paper "Large amplitude wavelength modulation spectroscopy for sensitive measurements of broad absorbers".��.

The work of our DOE ARPA-E technology-to-market advisor Nate Gorence was highlighted��. The article features this photo of Nate during his latest visit to our field test site.

The Rieker group goes big! Barney Ellison in the CU Chemistry department donated a 15' optical table to our group. Campus moving services told us they did not have the capability to move such a behemoth. So, PhD students Ryan Cole and Paul Schroeder, together with Mechanical Engineering facilities coordinator George Carter, organized a group of students and equipment for the move. 1 hour and 5 pizzas is all it took!

Prof. Rieker travelled to Leipzig, Germany for the��. In total the group contributed to four talks, including two talks led by our collaborators at NIST and two talks led by PhD students Paul Schroeder ("Dual frequency comb spectroscopy of high temperature water vapor: absorption model development for combustion sensors") and Torrey Hayden ("Ultra-large amplitude wavelength modulation spectroscopy"). This photo is of the statue at the entrance to Auersbachs Keller, a historic wine bar and restaurant dating back to 1438 and the first place that Mephistopheles took Faust in the famous Goethe play "Faust."

Congratulations to PhD student Jason Christopher who was selected for promotion from the rank of captain to the rank of major in the United States Air Force!

Congratulations to the Rieker group! Together with a team from UC-Davis, Scientific Aviation, and NIST, they won a grant from the Department of Energy to study emissions from methane storage facilities. The grant announcement and description of the investigation they'll lead can be found in the��. Special thanks to Caroline Alden and Sean Coburn for their organizational efforts at the proposal stage.

Professor Rieker traveled to Aix-Les-Bains, France for an invited talk at��: "Combustion and Environmental Science Applications of Fieldable Frequency Combs." In addition to hearing engaging talks by fellow researchers, he also learned that one should not mix charcuterie and hot dishes on the same plate (at least according to one annoyed French chef).

The Rieker lab goes to Seoul! PhD student Paul Schroeder presented new research at the����in Seoul, Korea this month. Paul's talk was titled: Dual Frequency Comb Laser Absorption Spectroscopy in a 16MW Gas Turbine Exhaust.

Greg Rieker leads a team of incoming first-year College of Engineering and Applied Science students through projects and skills development as part of the CU BOLD Center's��.

Congratulations to PhD student Torrey Hayden, who was accepted to and attended the OSA Foundation����in Barcelona this July! The program hosted graduate students from around the world for a week of education advancement, building new collaborations, and promoting research and engineering for the optical community.

The Rieker lab goes mobile! Our new 16’ mobile laboratory heads out to the field. Thanks to ARPA-E support and dedicated work from many members of the team (Sean Coburn and Robbie Wright in particular), we now have an extension of our lab located in the fields of eastern Colorado. This platform is currently aimed at detecting methane emissions with unprecedented sensitivity and accuracy.

Congratulations to PhD student Paul Schroeder on his recent��. The paper represents the first application of frequency comb spectroscopy in an industrial environment (the 16 MW gas turbine in the CU power plant!). Visit the��for more info.

Profs. Peter Hamlington, John Daily, and Greg Rieker won a 3 year grant from the Strategic Environmental Research and Development Program (SERDP), a strategic partnership between the DoD, DoE, and EPA. The focus of the grant is to study wildfire combustion.

Congrats to Torrey Hayden on her best poster award at this year’s Colorado Photonics Industry Association annual meeting! She puts pressure on next year’s posters to extend our lab’s streak at this event.

Prof. Rieker and the lab deliver an interactive workshop for CU’s BOLD ASPIRE summer program for incoming engineers: “Fire, Lasers, and Saving the World — How Engineering Led Me to the Coolest Job Ever.”��

Torrey Hayden volunteers her time for CU Science Discovery, a program that challenges young students to solve engineering problems.

Prof. Rieker and Prof. Jun Ye (JILA) are awarded a grant from DARPA to develop sensitive frequency comb-based diagnostics.

The Precision Laser Diagnostics Laboratory is awarded a grant from Air Force Research Laboratories to aid in diagnostic development for microthrusters.

The Precision Laser Diagnostics Lab has a good showing at CLEO 2015! Torrey Hayden presented her work on Wavelength Modulation Spectroscopy for Broad Absorbers, and Esther Baumann of NIST presented on our work with NIST on measurements of absorption lineshapes and spectroscopic parameters in the open atmosphere.

Paul Schroeder wins 'The People's Choice Award' at the poster session of the 2015 CU Energy Frontiers Conference for his poster titled 'Combining Science and Engineering: Spectroscopy of Water Vapor in a Coal Gasifier Using Dual Frequency Comb Spectroscopy.'

Prof. Rieker receives a CAREER award from the Combustion and Fire Systems program of the National Science Foundation! The $507k award will fund a joint research and educational program over the next 5 years. The research will focus on establishing powerful frequency comb-based diagnostics for combustion systems. The educational component will establish a new hands-on thermal systems capstone course, and translate portions of this course into workshops aimed at helping high school and undergraduate students explore career options related to energy.

Prof. Rieker and collaborators from the National Institute of Standards and Technology and the National Oceanic and Atmospheric Administration are awarded $2.1M to develop frequency comb-based technologies for methane leak detection through the Department of Energy's Advanced Research Projects Agency, ARPA-E. View the .

Undergraduate Jaylen Hinds wins first prize at the You're@CU poster session for his work: “Design of a Pressure Vessel for High Temperature and High Pressure Spectroscopy.”

Prof. Rieker's paper “Frequency Comb-Based Remote Sensing of Greenhouse Gases over Kilometer Air Paths,” is published in����and featured on the����and����websites.

Paul Schroeder wins Colorado Photonics Industry Association award for his poster: “Combining Science and Engineering: Spectroscopy of Water Vapor in a Coal Gasifier Using Frequency Comb Lasers. ”

The Rieker group is featured in the ME Times newsletter:��.