Aside from the classical Gaussian intensity profiles, unconventional laser beam shapes open up new perspectives for technologically relevant areas such as deep-hole drilling, photopolymerization, and nanopatterning.
Optics
Near-Field Enhancements along Ring-Shaped Nanostructures
The near-field enhancement on the surface of ring-shaped gold nanostructure becomes homogeneous through circularly polarized light.
Plasmon Bands in Gold-Silver Nanorods
Researchers from The Chinese University of Hong Kong have shown that there are four plasmon bands in (Au core)−(Ag shell) nanorods.
Large-Area Low-Cost Gold Nanostructures through Colloidal Nanolithography
Double split-ring resonators with optimized Fano resonances for refractive index sensing could be realised by hole-mask colloidal nanolithography.
Tunable Organic Distributed Feedback Lasers
The emission of polymer distributed feedback lasers can be tuned by integrating nonlinear optical organic molecules.
Broadband Plasmonic Response of Semiconductor Disks
The plasmonic behavior of touching semiconductor disks shows a highly efficient broadband response in the terahertz regime as predicted by theoretical studies.
Electrochromic Bragg mirror
Researchers report the first example of an electrochromic Bragg mirror based on nanoporous multilayers of nickel oxide and tungsten trioxide nanoparticles.
Laser and Photonics Reviews Now Accepting Communications
Laser & Photonics Reviews will now accept original papers and letters, with immediate effect.
Slab-nanocrystal nanolasers
Low-threshold nanolasers based on slab-nanocrystals of H-aggregated organic semiconductors are reported by researchers at the Chinese Academy of Sciences.
Nanoantenna-enhanced lanthanide upconversion
3D plasmonic nanoantennas produce a 300 times enhancement in the conversion efficiency of lanthanide-based upconversion luminescence materials.
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