Results 211 to 220 of about 2,960 (258)

Diffractive optical elements in glass

2003
Diffractive optical elements (DOE) in glass are achieved by the means of the thermal ion exchange in a substrate glass. We report about the technical advantages and limitations for the design of DOEs in respect of this new technology. A first application has been worked out for a Nd:YAG laser cutting Station.
Thoma, C., Schütte, H., Vahrenkamp, T., Kreitlow, H.   +3 more
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Programmable Diffractive Optical Elements

Spatial Light Modulators and Applications, 1993
Diffractive optical elements can be written onto spatial light modulators (SLM's) yielding several advantages.
Jeffrey A. Davis, Don M. Cottrell, Robert M. Bunch, Werner V. Brandt, Heidi M. Schley-Seebold, Jarod Guertin   +5 more
openaire   +1 more source

Optical Coupler Using Diffractive Optical Elements

The International Photonics and Optoelectronics Meeting (POEM), 2018
Diffractive optical element (DOE) is employed as optical coupler used in optical interconnection. A modified GS algorithm using smaller sampling size with high intensity uniformity and well suppressed side lobes is proposed to design DOE.
Weidong Qu, Qiong Gao, Jianguo Xue, Yanxiu Zhang, Xinyuan Liu, Bing Wang   +5 more
openaire   +1 more source

Diffractive optical elements in single crystal diamond

Optics Letters, 2020
We demonstrate the design, fabrication, and experimental characterization of near-field binary phase transmission diffractive optical elements (DOEs) in single crystal diamond. Top-hat and arbitrary pattern DOE beam shapers were numerically optimized using an iterative Fourier transform algorithm (IFTA).
Thibault Wildi, Marcell Kiss, Niels Quack   +2 more
openaire   +2 more sources

Design of Diffractive Optical Elements

2017
Diffractive optical elements tailor optical fields via diffraction. The diffraction patterns of standard apertures such as single slit, double slit, circular aperture, and square slit are well known. However, for applications, apertures with higher levels of complexity may be required. A DOE can be thought of as a special aperture and can be engineered
A. Vijayakumar, Shanti Bhattacharya
openaire   +1 more source

Diffractive optical element for optical data storage

SPIE Proceedings, 2013
The diffractive optical element (DOE) has the transformation function of wavefront, and its applications are forming or homogenization of beam, and aberration correction, and so on. In this study, we evaluate possibility as storage application of the DOE. The optical data storage using the DOE is thought of as a kind of holographic data storage (HDS)
S. Yoshida, N. Unno, H. Akamatsu, K. Yamada, J. Taniguchi, M. Yamamoto   +5 more
openaire   +1 more source

Crossed phase gratings with diffractive optical elements

Applied Optics, 1998
Orienting two identical or complementary diffractive gratings with a small angle between the grating grooves allows a new crossed-grating device to be constructed. This device has an effective profile that varies locally. For understanding the effects of this variation and the diffraction efficiency of the gratings, the local profiles were correlated ...
W S, Rockward, D C, O'Shea
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Micro- and Diffractive Optical Elements

2018
With the rapid development of modern optics and optoelectronic technology, optoelectronic components have also changed greatly. Optical elements are not only limited in refractive lenses, prisms, and mirrors. New optical components such as micro-lens arrays, holographic lenses, and diffractive elements are also used in various optoelectronic devices ...
Xiujian Li, Zhengzheng Shao, Mengjun Zhu, Junbo Yang   +3 more
openaire   +1 more source

Diffractive optical elements for optoelectronics

Diffractive Optics: Design, Fabrication, and Applications, 1992
Diffractive optical elements (DOEs) rely on the deflection of light waves by diffraction on microstructures rather than on refraction by smooth surfaces. They are well-suited for applications involving monochromatic light and lasers: They are flexible in design (synthetic holograms are designed by CAD), it is possible to fabricate array-optics (several
openaire   +1 more source

Fabrication of Diffractive Optical Elements

2017
In earlier chapters, the design and analysis of simple and multifunctional DOEs using different techniques are presented. In this chapter, pre-fabrication techniques such as designing the lithography files, etc., and fabrication techniques with basic fabrication recipes are presented. The fabrication of micro-optical elements using photolithography has
A. Vijayakumar, Shanti Bhattacharya
openaire   +1 more source