Huaguo Zang

TL;DR: The authors demonstrate the first in-orbit atomic clock using cold Rb atoms operating in microgravity and opening possibilities of space surveys and tests of fundamental physics.

TL;DR: Based on the correlation theories of heterodyne detection, a laser Doppler vibrometer (LDV) was developed to detect the sound signal through the vibration of glass as mentioned in this paper.

TL;DR: In this paper, a duplex optical communication link has been verified in orbit between a LEO satellite and a optical ground station (OGS), the down link used Differential Phase Shift Keying (DPSK) modulation format and allowed to transmit data with data rate of 5.12Gbps, without error correction coding, the bit error rate (BER) was better than 10−6 with the link distance exceeded 1500 km, and an average BER of 1.9×10−9 was realized in 306s.

TL;DR: In this article, a conductively cooled, laser diode (LD) end-pumped, injection-seeded single-frequency Nd:YAG laser is designed and implemented.

TL;DR: In this paper, a double-pulse integrated path differential absorption (IPDA) instrument for carbon dioxide (CO2) concentration measurements at 1572nm has been developed and a ground experiment was implemented under different conditions with a known wall located about 1.17 km away acting as the scattering hard target.