Laser Pulse Shaping Method

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This invention describes a method and apparatus for the time-based and two-dimensional spatial shaping (modulation) of laser pulses, used in microscopic observation or modification of samples, especially with nanometer-scale resolution. By modulating laser pulse parameters such as phase, amplitude, and polarization in both space and time, the system allows precise manipulation of how the laser interacts with the sample. The technique improves upon existing methods (such as STED microscopy), enabling high-resolution imaging and material modification without the need to perfectly align multiple laser beams.

Use CasesContent extracted from patent full text and abstract with AI.

• Super-resolution fluorescence microscopy (e.g., STED microscopy) for life sciences and materials science
• Nanofabrication or microstructuring of polymers and other materials with features below the optical diffraction limit
• Precise initiation or control of chemical reactions at the nanoscale
• Observation and tracking of fast molecular processes within cells or materials
• Advanced spectroscopy techniques to selectively interrogate molecules in complex environments
• Optimizing or tuning photo-induced processes in research or industrial applications

BenefitsContent extracted from patent full text and abstract with AI.

• Enables high spatial resolution well below the traditional optical diffraction limit, down to nanometer scales
• Greater flexibility and simpler operation compared to methods requiring perfect alignment of multiple lasers
• Independent and precise control over phase, amplitude, and polarization at each point in the sample, allowing customizable pulse profiles
• Can improve fluorescence efficiency and molecular selectivity in microscopy
• Reduces system complexity by using pulse shaping instead of multiple separate beams
• Supports iterative, computer-optimized modulation schemes for best performance
• Adaptable to existing optical and microscope systems, including confocal setups

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The invention relates inter alia to a laser pulse shaping method for microscopically viewing and modifying an object (5), in which a temporal modulation and a two-dimensional spatial modulation of laser pulses (P) are carried out, wherein at least the phase of the laser pulses is modulated dependent on the location, the modulated laser pulses (P"1-P"n) being directed at the object (5).