Article ID Journal Published Year Pages File Type
9586129 Journal of Luminescence 2005 4 Pages PDF
Abstract
Terahertz radiation from CdxHg1-xTe samples excited by femtosecond pulses generated by Ti:sapphire laser was measured by using an ultrafast photoconductive antenna. The radiated terahertz field magnitude was nearly the same for all three investigated alloy compositions with x= 0, 0.2 and 0.3. No azimuthal angle dependence of the radiated signal was detected, which evidences that a linear current surge effect is dominating over nonlinear optical rectification. Experimental observations are discussed in terms of the energy band structure of the investigated compound semiconductors.
Related Topics
Physical Sciences and Engineering Chemistry Physical and Theoretical Chemistry
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