Applied Physics Letters · 1992 · 27 citations · 6 references
High Conversion EfficiencyEngineeringLaser ScienceConversion EfficiencyLaser ApplicationsSuper-intense LasersHigh-power LasersOptical AmplifierQuantum MaterialsOptical PumpingQuantum SciencePhotonicsPhysicsQuantum DeviceSecond-harmonic GenerationApplied PhysicsQuantum Photonic DeviceOptoelectronicsGaas/alxga1−xas Step
Second-harmonic generation due to intersubband transitions in GaAs/AlxGa1−xAs step quantum well structures has been studied with a tunable TEA CO2 laser. The maximum value of χ(2)(2ω) is found to be ∼9×10−7 m/V. Using a multipass or ‘‘waveguide’’ structure, a conversion efficiency of more than 3×10−4 has been obtained.
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M. M. Fejer, SeungRan Yoo, Robert L. Byer et al. · Physical Review Letters · 1989 · 374 citations
Categoryquantum Electronics, Quantum Science, Wide-bandgap Semiconductor +9