Diffraction in optical devices with subwavelength features presents a largely unsolved problem in optical design. New calculational methods are being developed to solve the vector Maxwell equations near the surface of metallic and dielectric media. The figure shows the amplitude and phase of the electric field being reflected and absorbed near the surface of a metallic grating with index n=1.5 +6i, and subwavelength groove width and height [see article by A. Rahman for details].
- Jul 30 2014 : OSA Journal Portfolio Continues to Lead Optics Category in Total Citations and Articles in Thomson Reuters 2014 Journal Citation Reports - The Optical Society (OSA) is pleased to announce its full portfolio... more
- Jul 28 2014 : Wearable Device for the Early Detection of Common Diabetes-related Neurological Condition - A group of researchers in Taiwan has developed a new optical... more
- Jul 22 2014 : Self-cooling Solar Cells Boost Power, Last Longer - Scientists at Stanford University may have overcome one of the major... more
- Jul 22 2014 : The Optical Society Launches Optica, New Open-Access Journal for Highest-Impact Research in the Science of Light - The Optical Society (OSA) today published the first issue of Optica,... more
- Making smart phones smarter with photonics
- A 3D integral imaging optical see-through head-mounted...
- All-digital wavefront sensing for structured light beams
- Ptychographic microscope for three-dimensional imaging
- Nanoplasmonics: past, present, and glimpse into future
- Nonlinear optics in daily life
- Giant all-optical tunable group velocity dispersion in an...
- Real-time integral imaging system for light field microscopy
- Photoluminescence emission and Raman response of monolayer...
- Optical phase imaging using a synthetic aperture phase...