AI Article Synopsis
- The study examined how a photochromic pyrrylfulgide/PMMA film responds to light when exposed to two linearly polarized beams.
- When illuminated with polarized light, the film develops an optical axis that aligns with the light's polarization, affecting how it transmits and polarizes light.
- The findings reveal that the film can display different patterns based on the polarization of the light used to read the matrix, suggesting potential applications in camouflage technology.
Article Abstract
Photoinduced anisotropy of a photochromic pyrrylfulgide/PMMA film was investigated by using two linearly polarized beams. Excitation by linearly polarized light induces into the film an optical axis that has the same polarization as the excitation beam. This causes a change of the transmittance and of the polarization state of the detection beam. With a microscope a matrix of 4x4 light spots with different polarizations were recorded in the pyrrylfulgide/PMMA film. If readout with non-polarized light, the matrix of light spots show no information pattern. However, when readout with differently polarized lights, different patterns can be displayed. The experiment demonstrates that pyrrylfulgide/PMMA films can be used to hide two differently polarized patterns, which may be applied in camouflage technology.
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| http://dx.doi.org/10.1364/opex.13.000020 | DOI Listing |
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