Stimulated terahertz stokes emission of silicon crystals doped with antimony donors.
Stimulated Stokes emission has been observed from silicon crystals doped by antimony donors when optically excited by radiation from a tunable infrared free electron laser. The photon energy of the emission is equal to the pump photon energy reduced by the energy of the intervalley transverse acoustic (TA) g phonon in silicon (approximately 2.92 THz). The emission frequency covers the range of 4.6-5.8 THz. The laser process occurs due to a resonant coupling of the 1s(E) and 1s(A1) donor states (separation approximately 2.97 THz) via the g-TA phonon, which conserves momentum and energy within a single impurity center.
Pavlov
S G
SG
Institute of Planetary Research, German Aerospace Center (DLR), 12489 Berlin, Germany.
Hübers
H-W
HW
Hovenier
J N
JN
Klaassen
T O
TO
Carder
D A
DA
Phillips
P J
PJ
Redlich
B
B
Riemann
H
H
Zhukavin
R Kh
RKh
Shastin
V N
VN