Sampling a terahertz dipole transition with subcycle time resolution
Optics Letters, Vol. 25, Issue 4, pp. 272-274 (2000)
http://dx.doi.org/10.1364/OL.25.000272
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Abstract
We present a time-resolved technique to measure optical excitation processes with a time resolution shorter than the oscillation period of the exciting light. Our terahertz (THz) experiments fully resolve the polarization dynamics of electrons in semiconductor heterostructures when they are excited by a THz pulse. The time resolution of the polarization enables us to deduce the population dynamics of the excited state, which includes the dynamics of a virtual population in the case of off-resonant excitation.
© 2000 Optical Society of America
OCIS Codes
(270.1670) Quantum optics : Coherent optical effects
(300.6240) Spectroscopy : Spectroscopy, coherent transient
(320.7130) Ultrafast optics : Ultrafast processes in condensed matter, including semiconductors
(320.7150) Ultrafast optics : Ultrafast spectroscopy
Citation
R. Kersting, R. Bratschitsch, G. Strasser, K. Unterrainer, and J. N. Heyman, "Sampling a terahertz dipole transition with subcycle time resolution," Opt. Lett. 25, 272-274 (2000)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-25-4-272
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