Optical Frequency Comb Calibrated Near Infrared Solar Heterodyne Spectroscopy

Abstract

We perform heterodyne spectroscopy at 1.56 micron with a tunable laser and thermal radiation from the Sun. The laser tuning is calibrated with a frequency comb, providing a simple spectrometer with absolute frequency tracebility and resolving power of 2,000,000

Summary from OSA CLEO Meeting (2020)

References in corpus (1)

• An ${}^{27}$Al${}^{+}$ quantum-logic clock with systematic uncertainty below $10^{-18}$