Terahertz-wave generation in quasi-phase-matched GaAs

K. L. Vodopyanov, M. M. Fejer, X. Yu, J. S. Harris, Y.-S. Lee, W. C. Hurlbut, V. G. Kozlov, D. Bliss, C. Lynch

doi:10.1063/1.2357551

Terahertz-wave generation in quasi-phase-matched GaAs

DOI PDF 被引用文献1件

K. L. Vodopyanov

Stanford University Edward L. Ginzton Laboratory, , Stanford, California 94305
M. M. Fejer

Stanford University Edward L. Ginzton Laboratory, , Stanford, California 94305
X. Yu

Stanford University Solid State Photonics Laboratory, , Stanford, California 94305
J. S. Harris

Stanford University Solid State Photonics Laboratory, , Stanford, California 94305
Y.-S. Lee

Oregon State University Department of Physics, , Corvallis, Oregon 97331
W. C. Hurlbut

Oregon State University Department of Physics, , Corvallis, Oregon 97331
V. G. Kozlov

Microtech Instruments, Inc. , Eugene, Oregon 97403
D. Bliss

Hanscom Air Force Research Laboratory , Bedford, Massachusetts 01731
C. Lynch

Hanscom Air Force Research Laboratory , Bedford, Massachusetts 01731

説明

<jats:p>The authors demonstrate an efficient room temperature source of terahertz radiation using femtosecond laser pulses as a pump and GaAs structures with periodically inverted crystalline orientation, such as diffusion-bonded stacked GaAs and epitaxially grown orientation-patterned GaAs, as a nonlinear optical medium. By changing the GaAs orientation-reversal period (504–1277μm), or the pump wavelength (2–4.4μm), we were able to generate narrow-bandwidth (∼100GHz) terahertz wave packets, tunable between 0.9 and 3THz, with the optical-to-terahertz photon conversion efficiency of 3.3%.</jats:p>