Research Studies on Electromagnetically Induced Transparency
Final rept. 1 Feb 2001-31 Jan 2004
LELAND STANFORD JUNIOR UNIV STANFORD CA
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The final report describes progress in the use of electromagnetically induced transparency for the realization of new types of nonlinear interactions and processes. We have worked in two areas 1 The generation of femtosecond pulses by phased and anti-phased molecular states and the use of this radiation for new types of physical processes, and 2 The demonstration of elementary nonlinear optical processes at low-light-levels. Highlights of the work on this program include the suggestion and first demonstration of the use of an EIT-like Raman process to produce a spectrum with a width over 50,000 cm-1 of bandwidth, and the compression of this radiation to pulses of several femtoseconds in length. By using a technique, which we call multiplicative, we are able to obtain over 200 sidebands. In the future this should allow the synthesis of sub-cycle waveforms of arbitrary shape. In other work under this contract, we have observed an efficient nonlinear optical process at an energy of several pJ.
- Electromagnetic Pulses