2 papers
physics.optics2026
Population-inversion map of the mesospheric sodium ladder: continuous-wave and pulsed pumping schemes for directed emission
Yucheng Yang, Chunyang Lei, Kai Guo +2
Directed mirrorless lasing from the mesospheric sodium layer has been proposed as a way to overcome the isotropy of laser guide star fluorescence, with demonstrated cell-scale anal…
physics.app-ph2026
Optimization of the Repumping Parameters for a Sodium Laser Guide Star Magnetometer
Yucheng Yang, Chunyang Lei, Kai Guo +1
A sodium laser guide star operated as a mesospheric magnetometer modulates a 589 nm laser at the local Larmor frequency and usually diverts a fraction of its power to a repumping l…