Note: Folded optical system for narrow forward looking probe

作者：Hou Hsuan Chao; Hah Dooyoung; Kim Jeonghwan; Feldman M^*

来源：Review of Scientific Instruments, 2014, 85(2): 026114.

DOI：10.1063/1.4864149

An optical system is described in which a laser beam makes three passes through a single graded index lens, forming a focus along the optic axis. It has important applications in endoscopic probes, where the forward looking characteristic permits the avoidance of obstacles and the narrow structure makes it minimally invasive.

• 出版日期2014-2