Results 41 to 50 of about 1,120,417 (313)
Photonics, 2022 We consider a version of the supporting quadric method for designing freeform mirrors that generate prescribed irradiance distributions in the near field. The method is derived for a general case of an incident beam with an arbitrary wavefront.
Leonid L. Doskolovich +7 more
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Tackling misconceptions in geometrical optics
The Physical Educator, 2018 To improve the teaching and learning materials for a curriculum it is important to incorporate the findings from educational research. In light of this, we present creative exercises and experiments to elicit, confront and resolve misconceptions in ...
S. Ceuppens +3 more
semanticscholar +1 more source
Orthogonally coupled geometrical constraints in optics design
Journal of the European Optical Society-Rapid Publications, 2019 Modern optical multi-camera systems require integrating many camera modules in a small volume. A new space-saving concept for such imaging systems is presented, based on intersecting optical paths that utilize one or more common elements for the ...
Jyrki Kimmel
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Extending geometrical optics: A Lagrangian theory for vector waves [PDF]
, 2016 Even when neglecting diffraction effects, the well-known equations of geometrical optics (GO) are not entirely accurate. Traditional GO treats wave rays as classical particles, which are completely described by their coordinates and momenta, but vector ...
D. E. Ruiz, I. Dodin, I. Dodin
semanticscholar +1 more source
The classical limit of quantum optics: not what it seems at first sight
New Journal of Physics, 2013 What light is and how to describe it has always been a central subject in physics. As our understanding has increased, so have our theories changed: geometrical optics, wave optics and quantum optics are increasingly sophisticated descriptions, each ...
Yakir Aharonov +5 more
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A solution to the complement of the generalized Luneburg lens problem
Communications Physics, 2021 Spherically-symmetric lenses can create sharp virtual images, but a general expression for their refractive index profiles had not yet been developed.
Nelson J. G. Fonseca +2 more
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SmallTalk: a novel small‐sized fusion tag for peptide expression and purification
FEBS Open Bio, EarlyView.The SmallTalk fusion tag allows for the efficient expression and purification of soluble recombinant proteins or peptides in Escherichia coli. Testing with SmallTalk‐GFP confirmed that the proteins were soluble and folded correctly, while SmallTalk‐Bin1b maintained its antimicrobial activity against various bacterial isolates. This streamlined workflow
Atika Tariq +3 more
wiley +1 more source
Shaping caustics into propagation-invariant light
Nature Communications, 2020 Propagation-invariant beams have been up to now only available in a few realizations or for specific applications. Here, the authors demonstrate two methods for generating propagation-invariant beams with fully customizable intensity profiles in a ...
Alessandro Zannotti +3 more
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Silicon integrated multi-mode ring resonator
Nanophotonics, 2021 Ring resonator is an essential element in silicon integrated circuit, it is widely used as filter, wavelength multiplexer and switch in single-mode operation regime.
Ye Mengyuan +4 more
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