Proceedings ArticleDOI
Practical implementation of broadband diffractive optical elements
Junoh Choi,A. A. Cruz-Cabrera,Anthony A. Tanbakuchi +2 more
- Vol. 8612, pp 110-121
TLDR
In this article, the authors proposed a method to increase the working bandwidth of diffractive optical elements (DOEs) by extending the wavelength of the optical path to a single wavelength.Abstract:
Diffractive optical elements (DOEs), with their thin profile and unique dispersion properties, have been studied and
utilized in a number of optical systems, often yielding smaller and lighter systems. Despite the interest in and study of
DOEs, the application of DOEs has been limited to narrow spectral bands. This is due to DOEs depths, which are
optimized for optical path differences of only a single wavelength, consequently leading to rapid decline in efficiency as
the working wavelength shifts away from the design wavelength. Various broadband DOE design methodologies have
recently been developed that improve spectral diffraction efficiency and expand the working bandwidth of diffractive
elements. Two such extended bandwidth diffractive designs have been modeled and fabricated. The diffraction
efficiency test result for one broadband DOE design is presented.read more
Citations
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Extra-thin infrared camera for low-cost surveillance applications
TL;DR: A cheap broadband uncooled microimager operating in the long-wavelength infrared range using only one lens at a minimal cost for the manufacturing process using a Fresnel lens on a thin silicon substrate is designed.
Dissertation
Etude de l'apport des lentilles de Fresnel pour la vision
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Proceedings ArticleDOI
Conception of a cheap infrared camera using a Fresnel lens
TL;DR: It is shown that working in a high diffraction order can significantly reduce chromatism, and therefore inexpensive unconventional materials can be used because some absorption can be tolerated.
Journal ArticleDOI
Design of a hybrid refractive-diffractive telescope for observations in UV
TL;DR: In this paper, a hybrid refractive-diffractive telescope design working in a 200-nm -300-nm spectral range with a field of view 10°×10° is proposed.
Journal ArticleDOI
Assessing fabrication tolerances for a multilevel 2D binary grating for 3D multifocus microscopy.
TL;DR: A comprehensive theoretical assessment of fabrication tolerances for a 2D eight-level binary phase grating that is the central element of a multi-focal plane 3D microscopy apparatus and performs broadband spectroscopic diffraction pattern measurements on a fabricated grating.
References
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Journal ArticleDOI
Spectral properties of multiorder diffractive lenses
Dean Faklis,G. Michael Morris +1 more
TL;DR: It is shown that blazing the surface-relief diffractive lens for higher diffraction orders enables the design of achromatic and apochromatic singlets and the wavelength-dependent optical transfer function and the associated Strehl ratio are derived for multiorder diffractive lenses.
Journal ArticleDOI
Design concepts for broadband high-efficiency DOEs
TL;DR: In this paper, several design concepts are presented for efficiency achromatized diffractive optical elements (EA-DOEs) possessing diffraction efficiency larger than 97% over a broad spectral range.