It is well known that cats have fascinating eyes with various colors,such as green,blue,and brown.In addition,they posse......

It is well known that cats have fascinating eyes with various colors, such as green, blue, and brown. In addition, they ......

针对由平面或球面反射镜构成的传统激光谐振腔调节要求精度高、允许转动失调角度小的缺点,将Luneburg lens与球形全反射面组合作为......