3 papers
physics.optics2026
Few-picosecond pulse generation featuring ultrafast spectral dynamics in gain-switched surface-grating DFB lasers via impulsive optical pumping
Yihan Qi, Fuyi Cao, Hidekazu Nakamae +7
To investigate the physics of picosecond gain-switching dynamics in single-mode lasers under femtosecond optical pumping at room temperature, we designed and fabricated first-order…
astro-ph.IM2025
The New Science of Unidentified Aerospace-Undersea Phenomena (UAP)
Kevin H. Knuth, Philippe Ailleris, Hussein Ali Agrama +36
After decades of dismissal and secrecy, it has become clear that a significant number of the world's governments take Unidentified Aerospace-Undersea Phenomena (UAP), formerly know…
physics.ins-det2025
The Intrinsic Energy Resolution of LaBr(Ce) Crystal for GECAM
Pei-Yi Feng, Xi-Lei Sun, Zheng-Hua An +6
This study aims to provide an accurate estimation of the intrinsic resolution of LaBr(Ce) crystal through a combination of experimental and simulation methods. We re-analyzed t…