Abstract
Abstract Design, fabrication and optical characterization of micro Fresnel Zone Plates (FZP) are successfully demonstrated. These micro FZPs are composed of circular rings that have a maximum size of 9.4 mm in diameter and a minimum ring width of 2 μm. The absorber material is sputtered tungsten with a thickness of 0.5 μm that is deposited on top of a 2.5 μm thick low-stress nitride membrane. An optical system that is composed of a He-Ne laser, a pin-hole, various lenses and a CCD camera, is setup to measure the optical characteristics of micro FZPs. It is found that the relative intensity can be magnified about 100% higher by using these FZPs. These FZPs are powerful tools for forming images in the spectral region of infrared light, X- and gamma-rays where regular glass lenses can not be functional.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
