0
Physical Optics, Diffractive Optics

Dual wavelength photon sieves

[+] Author Affiliations
Hsiu-Hsin Chung

University of Florida, Department of Materials Science and Engineering, Gainesville, Florida 32611-6400

Narada M. Bradman

University of Florida, Department of Materials Science and Engineering, Gainesville, Florida 32611-6400

Mark R. Davidson

University of Florida, Department of Materials Science and Engineering, Gainesville, Florida 32611-6400

Paul H. Holloway

University of Florida, Department of Materials Science and Engineering, Gainesville, Florida 32611-6400

Opt. Eng. 47(11), 118001 (November 21, 2008). doi:10.1117/1.3029672
History: Received June 19, 2008; Revised October 08, 2008; Accepted October 09, 2008; Published November 21, 2008
Text Size: A A A

Photon sieves (PSs) are diffractive lenses with an array of pinholes that are capable of focusing light with either short, visible, or long wavelengths. PSs were fabricated using electron-beam lithography to pattern opaque silver films on a glass substrate (3mm diam, 51.7mm focal length). The size and spacing of pinholes was varied to create single and dual-wavelength PSs to focus 500 and/or 600nm light, and the pinholes for the dual wavelength design were arranged in sectors, concentric with one another, or randomly. Single wavelength PSs produced focused images of a 100μm source aperture with full width at half maximum (FWHM) of 100μm and high relative intensities at the design wavelength. Chromatic aberration resulted in no focused image and very low intensities when monochromatic light was 100nm from the designed wavelength. Dual wavelength PSs produced focused images of the 100μm source aperture with FWHMs of 100μm but lower relative intensities at both design wavelengths of 500 and 600nm. The background “secondary maxima” were higher for dual wavelength designs, especially when the PS was illuminated by white light. The FWHM was smaller and the intensities higher for the random or concentric dual wavelength designs as compared to the sector design.

Figures in this Article
© 2008 Society of Photo-Optical Instrumentation Engineers

Citation

Hsiu-Hsin Chung ; Narada M. Bradman ; Mark R. Davidson and Paul H. Holloway
"Dual wavelength photon sieves", Opt. Eng. 47(11), 118001 (November 21, 2008). ; http://dx.doi.org/10.1117/1.3029672


Access This Article
Sign In to Access Full Content
Please Wait... Processing your request... Please Wait.
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
 
Your Session has timed out. Please sign back in to continue.
Sign In to Access Full Content

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement


Buy this article ($18 for members, $25 for non-members).
Sign In