High-efficient tunable infrared laser from monatomic carbon chains
Applied Ion Beam Physics Laboratory, Institute of Modern Physics, Department of Nuclear Science and Technology, Fudan University - Shanghai 200433, China
2 Department of Optics Science and Engineering, Fudan University - Shanghai 200433, China
Accepted: 9 December 2011
Based on ab initio calculations, short B-doped monatomic carbon chains (MCCs) are suggested to serve as working medium for tunable infrared lasers. The MCCs derived from single-layer graphene in vacuum are proved to be very stable at room temperature, and their band gap is quite stretching-controllable with corresponding laser wavelength varying in the range 870–4590 nm, which is not easy to be implemented via previous techniques. High electro-optical conversion efficiency can be achieved by simply applying electric voltage on the chain ends and the MCC lasers are naturally polarized.
PACS: 73.63.Nm – Quantum wires / 42.60.By – Design of specific laser systems / 42.60.Pk – Continuous operation
© EPLA, 2012