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13 May 2011 Highly tunable corrugated metal nano-grating laser using current injection
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In this paper we designed a highly tunable laser with a corrugated metallic nano-grating. The design leverages the free electron laser design based on either the transit of an e-beam in the vicinity of a metallic grating or the transit of an ebeam through a periodic, transverse magnetic field produced by arranging magnets with alternating poles. Our design consists of a nano-film that is evaporated over a PMMA nano-grating. Current is injected into the nano-grating thin film. The electrons in the injected current experience an oscillating motion due to the corrugated grating structure. If the mean free path of the electrons within the nano-grating is long enough compared to the nano-grating spacing, the electron wave emits electromagnetic radiation. We developed the electromagnetic emission theory by solving Maxwell's equations for a current injected into a nano-wave grating, taking into consideration the electron mean free path. A corrugated nano-grating device with an area of 300 μm × 300 μm and a 30 nm grating spacing was fabricated.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jed Khoury, Charles L. Woods, John Kierstead, and John Donoghue "Highly tunable corrugated metal nano-grating laser using current injection", Proc. SPIE 8031, Micro- and Nanotechnology Sensors, Systems, and Applications III, 80312L (13 May 2011);

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