Publications Details

A Tunable Unidirectional Source for GUSTO's Local Oscillator at 4.74 THz

Khalatpour, Ali; Paulsen, Andrew; Addamane, Sadhvikas J.; Deimert, Chris; Reno, J.L.; Wasilewski, Zbig R.; Hu, Qing

The Galactic/Extra Ultra long Duration Balloon Spectroscopic-Stratospheric Terahertz Observatory (GUSTO), is a NASA balloon-borne project and is scheduled for launch in late 2022. The balloon will carry a spectroscopic telescope that will detect three brightest emission lines from interstellar medium. GUSTO measurements will shed light on the life-cycle of the gases in the Milky Way and Large Magellanic Cloud (LMC). In this study, we will discuss the details of a quantum cascade laser used in the local oscillator for detecting the oxygen line at 4.74 THz.