Laser control with metasurfaces.
Harvard University researchers have developed a single metasurface that can effectively tune the different properties of laser light, including wavelength, without requiring additional optical components. The metasurface can split light into multiple beams with controlled shape and intensity in an independent, precise, efficient manner.
Their work is published in Nature Communications: https://www.nature.com/articles/s41467-021-24071-2
#sciencenews #photonics
Harvard University researchers have developed a single metasurface that can effectively tune the different properties of laser light, including wavelength, without requiring additional optical components. The metasurface can split light into multiple beams with controlled shape and intensity in an independent, precise, efficient manner.
Their work is published in Nature Communications: https://www.nature.com/articles/s41467-021-24071-2
#sciencenews #photonics
Nature
Multifunctional wide-angle optics and lasing based on supercell metasurfaces
Nature Communications - The angular dependence is a well-known issue in metasurface engineering. Here the authors introduce a supercell metasurface able to implement multiple independent functions...
Nanoscale thermoplasmonics.
Research from Kazan Federal University demonstrates a new approach using plasmon-assisted optical heating to determine the glass transition temperature in polymers. The optical heating is controllable by adjusting the substrate conformation to probe the temperature in a broad range.
Their results are available in ACS Photonics: https://pubs.acs.org/doi/10.1021/acsphotonics.1c00256
#sciencenews #physics #photonics
Research from Kazan Federal University demonstrates a new approach using plasmon-assisted optical heating to determine the glass transition temperature in polymers. The optical heating is controllable by adjusting the substrate conformation to probe the temperature in a broad range.
Their results are available in ACS Photonics: https://pubs.acs.org/doi/10.1021/acsphotonics.1c00256
#sciencenews #physics #photonics
ACS Publications
Nanoscale Sensing Vitrification of 3D Confined Glassy Polymers Through Refractory Thermoplasmonics
Advances in plasmonics have been fundamentally rooted in minimizing ohmic losses in metallic nanostructures. However, the losses at resonance can play a positive role; for instance, in optical heating, there are two sides to every story. Under laser illumination…