Heavy noble gas (Kr, Xe) irradiated (111) InP nanoporous honeycomb membranes with enhanced ultrafast all-optical terahertz emission
作者： K. Radhanpura , S. Hargreaves , R. A. Lewis , L. Sirbu , I. M. Tiginyanu
DOI: 10.1063/1.3509404
关键词: Ion 、 Excitation 、 Terahertz radiation 、 Noble gas 、 Nanoporous 、 Honeycomb structure 、 Membrane 、 Analytical chemistry 、 Optoelectronics 、 Optical rectification 、 Materials science
摘要: Nanoporous honeycomb membranes on InP (111) surfaces emit ultrafast coherent terahertz pulses under near-infrared optical excitation. Irradiating the with heavy noble gas Kr or Xe ions enhances emission. The emission does not vary in-plane magnetic field rotation and exhibits three-cycle dependence azimuthal-angle rotation. Both suggest source is transient currents but rectification enhanced by heavy-ion irradiation.
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