据海军研究所光学部激光物理组负责人W. B. Watt说,该所已第一次试验成功质子束泵浦的气体激光器。在该部和等离子体物理部的共同努力下,在氟化氙中观察到和353毫微米的激光作用、在氩氮系统中观察到358和353毫微米的激光作用。Watt说,根据初步测量,“质子束泵浦”可能比电子束泵浦更有效,因为质子束与稀有气体的碰撞截面大。
In this Letter the problem of optimization of speckle patterns in a ghost imaging (GI) system is addressed. The mutual coherence between the measuring matrix and the sparsifying dictionary matrix is minimized to obtain the required speckle patterns. Simul
Effects of self-steepening (SS) of chirped Gaussian pulses on optical fiber communication system using midway optical phase conjugation (OPC) are analyzed. Dynamic evolution of the ultrashort pulses is simulated numerically. It is found that OPC cannot co
The performances of two liquid level sensors based on long-period fiber gratings are studied. The long-period gratings (LPGs) have similar characteristics (length and period), but are fabricated with two photosensitive B-Ge co-doped fibers with different