G. Lawrence (Larry) Carr
Lead Beamline Scientist for MET, FIS and INF, Electronic Structure Technique, National Synchrotron Light Source II

Brookhaven National Laboratory
National Synchrotron Light Source II
Bldg. 741, Room 1L 103
P.O. Box 5000
Upton, NY 11973-5000
(631) 344-2237
carr@bnl.gov
G. Lawrence (Larry) Carr is a physicist at the National Synchrotron Light Source II of Brookhaven National Laboratory. He develops beamlines and instrumentation for extracting and utilizing infrared synchrotron radiation for scientific studies.
Expertise | Research | Education | Appointments | Publications | Awards
Expertise
- Infrared Instrumentation and optical design
- Infrared, THz and optical properties of materials
- Condensed matter physics
- Low-temperature physics
- Accelerator-based sources of infrared
- Synchrotron beamline design
Research Activities
- Detector development for extending nanospectroscopy into the far-IR
- Insertion device development for low-energy photons
- Time-resolved spectroscopy of photoexcitations in solids
Education
B.S. - Physics, Rensselaer Polytechnic Institute
Ph. D. - Physics, the Ohio State University
Professional Appointments
International Advisory Board for Helmholz Zentrum Research
International Advisory Committee for WIRMS Conference Series
Selected Publications
- Carr GL, Martin MC, McKinney WR, et al (2002) High-power terahertz radiation from relativistic electrons. Nature 420:153–156. https://doi.org/10.1038/nature01175
- Carr GL (2001) Resolution limits for infrared microspectroscopy explored with synchrotron radiation. Review of Scientific Instruments 72:1613–1619. https://doi.org/10.1063/1.1347965
- Wehmeier L, Liu M, Park S, et al (2023) Ultrabroadband Terahertz Near-Field Nanospectroscopy with a HgCdTe Detector. ACS Photonics 10:4329–4339. https://doi.org/10.1021/acsphotonics.3c01148
- Khatib O, Bechtel HA, Martin MC, et al (2018) Far Infrared Synchrotron Near-Field Nanoimaging and Nanospectroscopy. ACS Photonics 5:2773–2779. https://doi.org/10.1021/acsphotonics.8b00565
- Shen Y, Watanabe T, Arena DA, et al (2007) Nonlinear Cross-Phase Modulation with Intense Single-Cycle Terahertz Pulses. Physical Review Letters 99:. https://doi.org/10.1103/physrevlett.99.043901
- Xi X, Ma C, Liu Z, et al (2013) Signatures of a Pressure-Induced Topological Quantum Phase Transition in BiTeI. Physical Review Letters 111:. https://doi.org/10.1103/physrevlett.111.155701
- Jamin N, Dumas P, Moncuit J, et al (1998) Highly resolved chemical imaging of living cells by using synchrotron infrared microspectrometry. Proceedings of the National Academy of Sciences 95:4837–4840. https://doi.org/10.1073/pnas.95.9.4837
- Carr GL, Reffner JA, Williams GP (1995) Performance of an infrared microspectrometer at the NSLS. Review of Scientific Instruments 66:1490–1492. https://doi.org/10.1063/1.1145951
Awards & Recognition
Fellow of the American Physical Society

Brookhaven National Laboratory
National Synchrotron Light Source II
Bldg. 741, Room 1L 103
P.O. Box 5000
Upton, NY 11973-5000
(631) 344-2237
carr@bnl.gov