Generation and control of femtosecond pulses by molecular modulation
| Autor: | D. R. Walker, A. M. Burzo, M. Y. Shverdin, Guang-Yu Yin, Stephen E. Harris, Alexei V. Sokolov, Deniz Yavuz |
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| Rok vydání: | 2005 |
| Předmět: | |
| Zdroj: | Journal of Modern Optics. 52:285-304 |
| ISSN: | 1362-3044 0950-0340 |
| Popis: | We have demonstrated that coherent molecular modulation can result in the collinear generation of mutually-coherent spectral sidebands that extend in frequency from the infrared to the far ultraviolet. Our technique is based on adiabatic preparation of a highly coherent molecular superposition-state, which is achieved by using narrow-linewidth lasers slightly detuned from a Raman resonance. The phases of the resultant Stokes and anti-Stokes sidebands are adjusted in order to synthesize desired single-cycle pulse trains at the target. In this article we review recent improvements and developments in this area, including: techniques for increasing the number of generated sidebands; synchronization of the pulse trains with the molecular motion in the given molecular system; laser self-focusing and spatial soliton formation due to the coherent interaction of light with oscillating molecules. In the future, this Raman source may produce sub-cycle optical pulses, and allow synthesis of waveforms where the elect... |
| Databáze: | OpenAIRE |
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