Concepedia

Terahertz radiation induced by subband-gap femtosecond optical excitation of GaAs

Physical Review Letters · 1991 · 109 citations · 11 references

Concepts

PhotonicsTerahertz SpectroscopyEngineeringPhysicsRadiation GenerationOptical PropertiesApplied PhysicsSurface Depletion FieldTerahertz ScienceTerahertz TechniqueTerahertz RadiationTerahertz PhotonicsOptoelectronicsVirtual Photocarriers

Abstract

We have observed terahertz radiation induced by subband-gap femtosecond optical excitation from GaAs. We belive this is due to screening of the surface depletion field by virtual photocarriers (the inverse Franz-Keldysh effect).

References

11

Semiconducting and other major properties of gallium arsenide

J. S. Blakemore · Journal of Applied Physics · 1982 · 2.5K citations

Wide-bandgap Semiconductor, Optical Materials, Engineering +17

Third-derivative modulation spectroscopy with low-field electroreflectance

D. E. Aspnes · Surface Science · 1973 · 1.2K citations

Engineering, Physics, Optical Properties +8

Subpicosecond photoconducting dipole antennas

P. R. Smith, D. H. Auston, M. C. Nuss · IEEE Journal of Quantum Electronics · 1988 · 792 citations

Thz Photonics, Engineering, Mid-infrared Laser Technology +19

Generation of femtosecond electromagnetic pulses from semiconductor surfaces

X.-C. Zhang, B. B. Hu, J. T. Darrow et al. · Applied Physics Letters · 1990 · 535 citations

Semiconductors, Photonics, Pulse Generation +14

Terahertz beams

Ch. Fattinger, D. Grischkowsky · Applied Physics Letters · 1989 · 404 citations

Photonics, Thz Photonics, Diffraction-limited Beams +9