Hydrogel-based diffractive optical elements (hDOEs) using rapid digital photopatterning.
Sign Up to like & getrecommendations! Published in 2021 at "Advanced optical materials"
DOI: 10.1002/adom.202001217
Abstract: Hydrogels, due to their optical transparency and biocompatibility, have emerged as an excellent alternative to conventional optical materials for biomedical applications. Advances in microfabrication techniques have helped convert conventional hydrogels into optically functional materials such… read more here.
Keywords: hydrogel based; digital photopatterning; optical elements; diffractive optical ... See more keywords
Terahertz Diffractive Optics—Smart Control over Radiation
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Infrared, Millimeter, and Terahertz Waves"
DOI: 10.1007/s10762-019-00581-5
Abstract: Over the last 20 years, thin and lightweight optical elements have become very desirable, especially for the terahertz (THz) range. Reduction of the volume of optical elements alongside an increase in their effective efficiency has… read more here.
Keywords: terahertz diffractive; optical elements; control; radiation ... See more keywords
3D sol–gel printing and sol–gel bonding for fabrication of macro- and micro/nano-structured photonic devices
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Sol-Gel Science and Technology"
DOI: 10.1007/s10971-020-05270-7
Abstract: Abstract Photonic integrated circuits (PIC) can be mass-produced by 3D-printing technologies in combination with advanced hybrid inorganic–organic materials. In this work we present the development of hybrid inorganic–organic materials based on the fast sol–gel process… read more here.
Keywords: optical elements; fabrication; gel; fast sol ... See more keywords
Stokes parameters polarization scattering properties of optical elements surface of different material
Sign Up to like & getrecommendations! Published in 2019 at "Optik"
DOI: 10.1016/j.ijleo.2019.03.092
Abstract: Abstract The micro-morphology and refractive index of the optical element surface not only affect the quality of the transmitted beam in the optical system, but also cause the polarization modulation of the beam. To characterize… read more here.
Keywords: properties optical; optical elements; surface; polarization scattering ... See more keywords
Thermally Triggered Multilevel Diffractive Optical Elements Tailored by Shape-Memory Polymers for Temperature History Sensors.
Sign Up to like & getrecommendations! Published in 2023 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.2c18901
Abstract: The morphological transitions induced by external stimuli in shape-memory polymers (SMPs) can be exploited with the real-time response of far-field diffraction patterns in diffractive optical elements (DOEs). In this paper, we combine the temperature characteristics… read more here.
Keywords: temperature history; diffractive optical; temperature; shape memory ... See more keywords
A Computational Design Framework for Efficient, Fabrication Error-Tolerant, Planar THz Diffractive Optical Elements
Sign Up to like & getrecommendations! Published in 2019 at "Scientific Reports"
DOI: 10.1038/s41598-019-42243-5
Abstract: We demonstrate ultra-thin (1.5-3λ0), fabrication-error tolerant efficient diffractive terahertz (THz) optical elements designed using a computer-aided optimization-based search algorithm. The basic operation of these components is modeled using scalar diffraction of electromagnetic waves through a… read more here.
Keywords: computational design; optical elements; thz; fabrication error ... See more keywords
Roller nanoimprint lithography for low-cost nanoscale random lattice diffractive optical elements
Sign Up to like & getrecommendations! Published in 2020 at "AIP Advances"
DOI: 10.1063/1.5137755
Abstract: In this paper, effective fabrication of high-resolution diffractive optical elements on a polymer substrate is demonstrated using roller nanoimprint lithography. A nanoscale diffraction grating mold, which can generate a random laser pattern, is fabricated by… read more here.
Keywords: diffractive optical; optical elements; fabrication; roller nanoimprint ... See more keywords
Curved holographic optical elements and applications for curved see-through displays
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Information Display"
DOI: 10.1080/15980316.2019.1570978
Abstract: ABSTRACT Holographic optical elements (HOEs) have been used as important tools for implementing augmented reality (AR) and see-through displays because they are transparent and thin. Moreover, as HOEs usually come in the shape of a… read more here.
Keywords: curved see; holographic optical; optical elements; method ... See more keywords
Design of a waveguide eye-tracking system operating in near-infrared with holographic optical elements
Sign Up to like & getrecommendations! Published in 2021 at "Optical Engineering"
DOI: 10.1117/1.oe.60.8.085101
Abstract: Recent research in augmented reality (AR) eyewear has prompted interest in using volume holographic optical elements for this application. However, many sensing operations in AR systems require the use of wavelengths in the near-infrared (NIR)… read more here.
Keywords: system; holographic optical; optical elements; near infrared ... See more keywords
Design and fabrication of freeform holographic optical elements
Sign Up to like & getrecommendations! Published in 2020 at "ACM Transactions on Graphics"
DOI: 10.1145/3414685.3417762
Abstract: Holographic optical elements (HOEs) have a wide range of applications, including their emerging use in virtual and augmented reality displays, but their design and fabrication have remained largely... read more here.
Keywords: holographic optical; optical elements; design fabrication; fabrication freeform ... See more keywords
Origination of free-form micro-optical elements using one- and two-photon grayscale laser lithography.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.448897
Abstract: We discuss and describe the development of an origination process for planar free-form micro-optical elements from a given optical design. The targeted masters serve as origination structures for a roll-to-roll mass fabrication process. Specifically targeted… read more here.
Keywords: form micro; free form; micro; optical elements ... See more keywords