Lightweight Raman spectroscope using time-correlated photon-counting detection. Academic Article uri icon


  • Raman spectroscopy is an important tool in understanding chemical components of various materials. However, the excessive weight and energy consumption of a conventional CCD-based Raman spectrometer forbids its applications under extreme conditions, including unmanned aircraft vehicles (UAVs) and Mars/Moon rovers. In this article, we present a highly sensitive, shot-noise-limited, and ruggedized Raman signal acquisition using a time-correlated photon-counting system. Compared with conventional Raman spectrometers, over 95% weight, 65% energy consumption, and 70% cost could be removed through this design. This technique allows space- and UAV-based Raman spectrometers to robustly perform hyperspectral Raman acquisitions without excessive energy consumption.

published proceedings

  • Proc Natl Acad Sci U S A

altmetric score

  • 17.35

author list (cited authors)

  • Meng, Z., Petrov, G. I., Cheng, S., Jo, J. A., Lehmann, K. K., Yakovlev, V. V., & Scully, M. O.

citation count

  • 16

complete list of authors

  • Meng, Zhaokai||Petrov, Georgi I||Cheng, Shuna||Jo, Javier A||Lehmann, Kevin K||Yakovlev, Vladislav V||Scully, Marlan O

publication date

  • October 2015