This paper describes a photoelectric device that is intended to serve as a replacement for degenerated photoreceptor cells in the retina. The device is a kind of silicon based micro-photodiode arrays. The final implant devices were approximately 100 micro
This study presents an eye-safe, single-mode, nanosecond-pulsed, and all-fiber laser source with master-oscillator-power-amplifier configuration at 1 550 nm that is suitable for high-resolution three-dimensional (3D) imaging light detection and ranging (L
自五年前发明了注入式(半导体)激光器后,它们得到了迅速发展,在应用(例如空间卫星通讯、计算机信息转移,甚至作为其他类型激光器的泵浦源)中显示出相当大的潜力。巴特耳(Battelle)纪念研究所哥伦布实验室的里德(F. J. Reid)认为,目前似乎有可能按需要制出能发射从紫外到红外区各种不同波长的注入式激光器。
A dual-blue light-emitting diode (LED) with asymmetric AlGaN composition-graded barriers but without an AlGaN electron blocking layer (EBL) is analyzed numerically. Its spectral stability and efficiency droop are improved compared with those of the conven