The Mac
@TheMac
22 November, 04:35
What good is a mask unless it is a photomask?
...as the vaccine is activated through the eyes?
Bastards.
...as the vaccine is activated through the eyes?
Bastards.
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Lisa Daigle
@Quarkfear
22 November, 05:03
In response The Mac to his Publication
woukd ray bans help??
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The Mac
@TheMac
22 November, 05:09
In response Lisa Daigle to her Publication
Optoelectronic effects differentiating absorption of right and left circularly polarized photons in thin films of chiral materials are typically prohibitively small for their direct photocurrent observation. Chiral metasurfaces increase the electronic sensitivity to circular polarization, but their out-of-plane architecture entails manufacturing and performance trade-offs. Here, we show that nanoporous thin films of chiral nanoparticles enable high sensitivity to circular polarization due to light-induced polarization-dependent ion accumulation at nanoparticle interfaces. Self-assembled multilayers of gold nanoparticles modified with L-phenylalanine generate a photocurrent under right-handed circularly polarized light as high as 2.41 times higher than under left-handed circularly polarized light.
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The strong plasmonic coupling between the multiple nanoparticles producing planar chiroplasmonic modes facilitates the ejection of electrons, whose entrapment at the membrane–electrolyte interface is promoted by a thick layer of enantiopure phenylalanine. Demonstrated detection of light ellipticity with equal sensitivity at all incident angles mimics phenomenological aspects of polarization vision in marine animals. The simplicity of self-assembly and sensitivity of polarization detection found in optoionic membranes opens the door to a family of miniaturized fluidic devices for chiral photonics.
😎
😎
05:09 AM - Nov 22, 2022
In response The Mac to his Publication
Only people mentioned by TheMac in this post can reply
The Mac
@TheMac
22 November, 05:12
In response The Mac to his Publication
A beam of light has radial polarization if at every position in the beam the polarization (electric field) vector points towards the centre of the beam. In practice, an array of waveplates may be used to provide an approximation to a radially polarized beam. In this case the beam is divided into segments (eight, for example), and the average polarization vector of each segment is directed towards the beam centre.
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The Mac
@TheMac
22 November, 05:13
In response The Mac to his Publication
Radial polarization can be produced in a variety of ways. It is possible to use so-called q-devices[2] to convert the polarization of a beam to a radial state. The simplest example of such devices is inhomogeneous anisotropic birefringent waveplate that performs transversally inhomogeneous polarization transformations of a wave with a uniform initial state of polarization.
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