Frequency conversion by means of Kerr nonlinearity is one of the most common and exploited nonlinear optical processes in the UV, visible, IR, and mid-IR spectral regions. Here we show that wave mixing of an optical field and a terahertz wave can be achieved in diamond, resulting in the frequency conversion of the terahertz radiation either by sum- or difference-frequency generation. In the latter case, we show that this process is phase matched and most efficient in a counterpropagating geometry.
Clerici, M., Caspani, L., Rubino, E., Peccianti, M., Cassataro, M., Busacca, A., et al. (2013). Counterpropagating frequency mixing with terahertz waves in diamond. OPTICS LETTERS, 38(n. 2), 178-180 [10.1364/OL.38.000178].
Counterpropagating frequency mixing with terahertz waves in diamond
BUSACCA, Alessandro;
2013-01-01
Abstract
Frequency conversion by means of Kerr nonlinearity is one of the most common and exploited nonlinear optical processes in the UV, visible, IR, and mid-IR spectral regions. Here we show that wave mixing of an optical field and a terahertz wave can be achieved in diamond, resulting in the frequency conversion of the terahertz radiation either by sum- or difference-frequency generation. In the latter case, we show that this process is phase matched and most efficient in a counterpropagating geometry.
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