About PhaseTech

PhaseTech Spectroscopy is the source of cutting-edge femtosecond spectroscopy solutions, specializing in femtosecond pulse shaping, 2D spectoscopy and other ultrafast technology.

PhaseTech Spectroscopy was founded in 2012.

PhaseTech Spectroscopy, Inc.

4916 East Broadway, Suite 125
Madison, WI 53716-4139
+1 608 712-1857

Martin Zanni, PhD

Founder & President


Martin is a founder of PhaseTech Spectroscopy, Inc and its President. He is also the Meloche-Bascom Professor of Chemistry at the University of Wisconsin-Madison. He attended the University of Rochester for his bachelors degrees and the University of California at Berkeley for his PhD. He has co-authored more than 160 papers on 2D IR and 2D visible spectrospectroscopy as well as the book, Concepts and Methods of 2D Infrared Spectroscopy. He is co-inventor on two patents related to multidimensional spectroscopy. Learn more about Marty's research at his group's website.

Chris Middleton, PhD

Founder & Chief Technology Officer


Chris is a founder of PhaseTech Spectroscopy, Inc. and its CTO. He has over 20 years experience with femtosecond spectroscopy including pulse shaping, transient absorption, and multidimensional spectroscopy. He at received his BS from Syracuse University and his PhD from Ohio State University. Learn more about Chris at chrismiddleton.com.

Baichhabi Yakami, PhD

Ultrafast Scientist


Baichhabi is an ultrafast scientist with PhaseTech. He has expertise in femtosecond transient absorption spectroscopy, 2D spectroscopy with pulse shaping and time-resolved photoluminescence spectroscopy, including studies on seminconductor quantum dots and nanowires with solar cell applications.

Tom Brinzer, PhD

Ultrafast Scientist


Tom started as an ultrafast scientist with PhaseTech in 2019. He attended Franklin & Marshall College for his bachelor's degree and the University of Pittsburgh for his PhD with Sean Garrett-Roe. His doctoral research using 2D IR spectroscopy focused on understanding the ultrafast dynamics and solvent interactions of small molecules dissolved in soft materials of interest for carbon capture.

Roxy Witzke

Operations Manager


Roxy has many years of diverse experience including computer programming, project management, accounting, purchasing - anything and everything as needed. She keeps the day-to-day operations running smoothly. Roxy has been with PhaseTech since August of 2017.