Method and device for multi photon excitation of a sample

Details Method and device for multi photon excitation of a sample Method and device for multi photon excitation of a sample

2006-10-03

2006-10-03

Luu, Thanh X. (Department: 2878)

Radiant energy

Luminophor irradiation

Methods

C356S035500, C356S318000

Reexamination Certificate

active

07115885

ABSTRACT:
In a method for multi photon excitation of a sample a laser beam is split into at least two coherent partial beams each having a beam axis and a same intensity distribution about its beam axis. The partial beams are directed from different directions towards a common measuring plane running transversely to the beam axes at an inclination angle <1 between the beam axes of the partial beams; and the partial beams are projected onto the measuring plane by means of a common lens system. Thus, an interference pattern formed by the coherent partial beams within the measuring plane provides areas of maximum light intensity adjacent to areas of minimum light intensity.

REFERENCES:
patent: 6020591 (2000-02-01), Harter et al.
patent: 6028686 (2000-02-01), Mirell
patent: 6107637 (2000-08-01), Watanabe
patent: 6262423 (2001-07-01), Hell
patent: 678108 (1991-07-01), None

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