Design and fabrication of the diffractive phase element that synthesizes three-color pseudo-nondiffracting beams
نویسندگان
چکیده
Jyh-Rou Sze Mao-Hong Lu, MEMBER SPIE National Chiao-Tung University Institute of Electro-Optical Engineering 1001 Ta-Hsueh Road, Hsin-Chu 300 Taiwan, Republic of China (ROC). E-mail: [email protected] Abstract. The experimental implementation of the diffractive phase element (DPE) that synthesizes three-color psudo-nondiffracting beams (PNDBs) is described. This DPE is designed with the amplitude-phase retrieval method and fabricated by using optical contact lithography and reactive-ion etching (RIE). Measurements demonstrate that the fabricated DPE has the desired function, i.e., it forms a six-segment PNDB over a finite axial region and is monochromatic in each segment. © 2002 Society of Photo-Optical Instrumentation Engineers. [DOI: 10.1117/1.1517287]
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تاریخ انتشار 2002