Quartic-phase-limited grism-based ultrashort pulse shaper.
By replacing the dispersive element in a zero-dispersion pulse shaper with a grism, we have constructed a quartic-phase-limited pulse shaper. We demonstrate compensation of 4500 fs2 without the use of a dynamic element in the pulse shaping line, which is approximately the amount of dispersion induced by a typical multiphoton microscope. We also demonstrate that detuning the pulse shaper to compensate for quadratic phase induces negligible spatial chirp, thereby maintaining a high-quality focal spot for a microscopy setup.
Field
Jeffrey J
JJ
Center for Microintegrated Optics for Advanced Bioimaging and Control, Department of Physics, Colorado School of Mines, Golden 80401, USA. jjfield@mines.edu
Durfee
Charles G
CG
Squier
Jeff A
JA
Kane
Steve
S
D004867:Equipment Design; D036641:Microscopy, Fluorescence, Multiphoton / Q000295:instrumentation* / Q000379:methods