2009/01/29 by K. R. Chen, Chen, K. R.
Neuroscience · Physics and Astronomy · #FOS: Physical sciences #Optics (physics.optics) #Photoreceptor and optogenetics research #Plasma Physics (physics.plasm-ph) #Quantum Mechanics and Applications #Quantum optics and atomic interactions #physics.optics #physics.plasm-ph
paper · pdf · doi:10.48550/arxiv.0901.4623
16 pages, 4 figures
arxiv created 2009/01/29 · openalex publication_date 2009/01/29 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Diffraction limits the behaviour of light in optical systems and sets the smallest achievable line width at half the wavelength. With a novel subwavelength plasmonic lens to reduce the diffraction via an asymmetry and to generate and squeeze the wave functions, an incident light is focused by the aperture to a single-line with its width beyond the limit outside the near zone. The fields focused are radiative and capable of propagating to the far zone. The light focusing process, besides being of academic interest, is expected to open up a wide range of application possibilities.