Self-focusing: Past and Present pp 481-506

Part of the Topics in Applied Physics book series (TAP, volume 114)

Self-focusing and Self-defocusing of Femtosecond Pulses with Cascaded Quadratic Nonlinearities

  • Frank W. Wise
  • Jeffrey Moses


Nonlinear phase shifts, either self-focusing or self-defocusing, can be impressed on pulses that propagate in quadratic nonlinear media. The issues that arise in the extension of these phase shifts to the femtosecond regime are outlined in this chapter, and applications to femtosecond pulse generation and propagation are reviewed. Quadratic media appear to be unique in offering a means of impressing self-defocusing nonlinear phase shifts on ultrashort pulses. Ongoing work that extends the investigation of controllable nonlinear phase shifts to pulses with a duration of a few optical cycles will be introduced.


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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Frank W. Wise
    • 1
  • Jeffrey Moses
    • 1
  1. 1.Department of Applied and Engineering PhysicsCornell UniversityIthacaUSA

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