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Dipole pulse theory: Maximizing the field amplitude from 4 pi focused laser pulses

MPS-Authors
http://pubman.mpdl.mpg.de/cone/persons/resource/persons200999

Aiello,  Andrea
Optical Quantum Information Theory, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons201085

Heugel,  Simon
4pi Photon Atom Coupling, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;
International Max Planck Research School, Max Planck Institute for the Science of Light, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons201115

Leuchs,  Gerd
Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Gonoskov, I., Aiello, A., Heugel, S., & Leuchs, G. (2012). Dipole pulse theory: Maximizing the field amplitude from 4 pi focused laser pulses. PHYSICAL REVIEW A, 86(5): 053836. doi:10.1103/PhysRevA.86.053836.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002D-6857-0
Abstract
We present a class of exact nonstationary solutions of Maxwell equations in vacuum from dipole pulse theory: electric and magnetic dipole pulses. These solutions can provide for a very efficient focusing of electromagnetic field and can be generated by 4 pi focusing systems, such as parabolic mirrors, by using radially polarized laser pulses with a suitable amplitude profile. The particular cases of a monochromatic dipole wave and a short dipole pulse with either quasi-Gaussian or Gaussian envelopes in the far-field region are analyzed and compared in detail. As a result, we propose how to increase the maximum field amplitude in the focus by properly shaping the temporal profile of the input laser pulses with given main wavelength and peak power.