Results 161 to 170 of about 10,934,899 (375)
3D Printed Optics Achieves Broadband Structured Light
Advanced Optical Materials, EarlyView.The arbitrary creation of structured light often requires complex design and fabrication steps and is largely limited to single wavelength. By leveraging off the toolkit for digital holograms, how complex amplitude modulation can be implemented as 3D printed optics in a manner that is broadband is shown, for the creation of multiwavelength forms ...
Leerin Perumal +4 more
wiley +1 more source
Approximation of Convex Functions
Real Analysis Exchange, 2004 In this note we give an elementary proof that an arbitrary convex function can be uniformly approximated by a convex \cinf-function on any closed bounded subinterval of the domain. An interesting byproduct of our proof is a global equation for a polygonal (piecewise affine) function.
openaire +3 more sources
Support, convergence, and differentiability properties of generalized convex functions [PDF]
, 1953 John W. Green
openalex +1 more source
Driving Micro‐Objects Using Optical Force due to Fluorescence Emission From Molecules
Advanced Optical Materials, EarlyView.Emission of fluorescence from a micro‐object in a specific direction is expected to generate an optical force driving the object in the opposite direction of the emission, like a rocket. To demonstrate this ‘photon‐driven micro‐rocket’, we prepared dye‐doped polymer micro‐object (PMO) one surface of which was covered with metallic film; the PMO ...
Syoji Ito +5 more
wiley +1 more source
Improvement of Jensen, Jensen-Steffensen's, and Jensen's functionals related inequalities for various types of convexity [PDF]
arXivIn this paper we deal with improvement of Jensen, Jensen-Steffensen's and Jensen's functionals related inequalities for uniformly convex, phi-convex and superquadratic functions.
arxiv
Linear estimation of the mean value of a stationary random process with convex correlation function [PDF]
, 1956 Jaroslav Hájek
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Chiral Sensing of Amino Acids under Visible Light via Hydroxypropyl Cellulose Gels
Advanced Optical Materials, EarlyView.Hydroxypropyl cellulose gels enable visible‐light‐based chiral detection of amino acid enantiomers. This study showcases their structural color properties for distinguishing phenylalanine and alanine enantiomers. The gels exhibit pH‐responsive color changes, high sensitivity at low concentrations (0.2 wt.%), and long‐term stability, offering ...
Luyao Huang +6 more
wiley +1 more source
Advanced Optical Materials, EarlyView.Lowering the barrier for researchers to explore polariton physics: A fully solution‐processed dielectric polariton microcavity incorporating Rhodamine 6G with tunable Rabi splitting up to 400 meV and photoluminescence. Abstract Planar microcavity polaritons have recently emerged as a promising technology for improving several performance ...
Hassan A. Qureshi +7 more
wiley +1 more source
Locking in Color: Stable RGB Perovskite Nanocrystal Films via UV Cross‐Linking
Advanced Optical Materials, EarlyView.Combining block copolymer stabilized lead halide nanocrystals with a UV light‐based cross‐linking procedure yields ultra‐stable nanocrystal thin films, which are resistant to dissolution by organic solvents and impervious to interlayer ion exchange. This allows for the fabrication of stacked layer RGB all‐perovskite white light‐emitting phosphors with ...
Patrick Ganswindt +8 more
wiley +1 more source