Open AccessDemonstration of a PDMS based hybrid grating and Fresnel lens (G-Fresnel) device
Author(s) -
Chuan Yang,
Kebin Shi,
Perry S. Edwards,
Zhiwen Liu
Publication year - 2010
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.023529
Subject(s) - optics , fresnel lens , fresnel number , materials science , fresnel zone , grating , fresnel equations , fresnel diffraction , polydimethylsiloxane , lithography , electron beam lithography , lens (geology) , profilometer , diffraction grating , optoelectronics , refractive index , surface finish , diffraction , physics , resist , nanotechnology , layer (electronics) , composite material
A hybrid device that we term G-Fresnel (i.e., grating and Fresnel) is demonstrated. It fuses the functions of a grating and a Fresnel lens into a single device. We have fabricated the G-Fresnel device by using polydimethylsiloxane (PDMS) based soft lithography. Three-dimensional surface profilometry has been performed to examine the device quality. We have also conducted optical characterizations to confirm its dual focusing and dispersing properties. The G-Fresnel can be useful for the development of miniature optical spectrometers as well as emerging optofluidic applications.