Perfect Light Absorption: Discovery Could Lead to Even Smaller Devices
“This equation contains answers to all of the questions we have regarding the properties of the particle and the beam,” explains Alexey Proskurin, a PhD student at ITMO University. “One feature of this equation is that it contains non-zero solutions only for certain values of the particle’s parameters. In our case, that means that the effect of perfect absorption manifests only with specific combinations of the particle’s size and material at a specific distance to the surface and wavelength. These combinations correspond to a certain shape of the incident beam. Having solved the Fredholm equation, we found all the parameters of the particle and the incident field. And after we conducted the numerical experiments, we were able to confirm the discovered effect of perfect absorption.”
(Itmo)
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:quality(80)/images.vogel.de/vogelonline/bdb/1844000/1844068/original.jpg "“This equation contains answers to all of the questions we have regarding the properties of the particle and the beam,” explains Alexey Proskurin, a PhD student at ITMO University. “One feature of this equation is that it contains non-zero solutions only for certain values of the particle’s parameters. In our case, that means that the effect of perfect absorption manifests only with specific combinations of the particle’s size and material at a specific distance to the surface and wavelength. These combinations correspond to a certain shape of the incident beam. Having solved the Fredholm equation, we found all the parameters of the particle and the incident field. And after we conducted the numerical experiments, we were able to confirm the discovered effect of perfect absorption.” (Itmo)")
