Essays about: "spatial-light modulator"

Found 5 essays containing the words spatial-light modulator.

  1. 1. Focal Spot Optimization Using Spatial Light Modulation and a Phase Retrieval Algorithm

    University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

    Author : Robert Petersen; [2023]
    Keywords : Spatial Light Modulation; Phase Retrieval Algorithm; Focal Spot Optimization; Adaptive Optics; Wavefront Sensing; Lasers; Physics and Astronomy; Technology and Engineering;

    Abstract : Aberrations to the wavefront of a laser beam reduce the quality of the focal spot and are generally undesired. This project is aimed at determining the aberrations of laser beams by using a phase retrieval algorithm and to show that it is possible to correct the aberrations with a spatial light modulator to optimize the focal spot. READ MORE

  3. 2. Phase control with spatial-light modulators towards application for opto-optical modulation

    University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

    Author : Isa Hendriks; [2020]
    Keywords : phase control; spatial-light modulator; simulation; spatial phase profile; opto-optical modulation; Physics and Astronomy;

    Abstract : This project is about focusing a Gaussian laser beam that has a spatial phase profile applied by a spatial light modulator. The goal is to be able to control the shape, position and phase of the peak at the focus and to split up the peak at the focus into several peaks. READ MORE

  4. 3. Development of Next-Generation Optical Tweezers : The New Swiss Army Knife of Biophysical and Biomechanical Research

    University essay from Umeå universitet/Institutionen för fysik

    Author : Daniel Nilsson; [2020]
    Keywords : optical tweezers; optical fiber tweezers; optical fiber; optical trapping; manipulation; optical force; cell trapping; biophysical; physicochemical; biomechanical; research; next-generation; raman spectroscopy; holographic optical tweezers;

    Abstract : In a time when microorganisms are controlling the world, research in biology is more relevant than ever and this requires some powerful instruments. Optical tweezers use a focused laser beam to manipulate and probe objects on the nano- and microscale. READ MORE

  5. 4. Manipulation and application of laser light using spatial light modulation

    University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

    Author : Albin Hedse; [2020]
    Keywords : spatial light modulation; wavefront correction; high harmonic generation; harmonic divergence; Physics and Astronomy;

    Abstract : Attosecond pulses obtained via high harmonic generation often suffer from chromatic aberration. This is inherent from the generation process as a consequence of the spatial profile of the driving laser pulses. READ MORE

  6. 5. Compression and Shaping of Femtosecond Laser Pulses for Coherent Two-Dimensional Nanoscopy

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Synkrotronljusfysik

    Author : Lukas Wittenbecher; [2016]
    Keywords : Femtosecond pulse shaping; Ultrafast optics; Liquid crystal spatial light modulator; Coherent two-dimensional nanoscopy; Dispersion compensation; Physics and Astronomy;

    Abstract : Femtosecond pulse shaping is a versatile tool that enables the generation of ultrashort laser pulses with nearly arbitrary temporal shapes. Among others, the technique is of use in ultrafast spectroscopy experiments where it can be employed for dispersion control and the generation of well-defined laser pulse sequences. READ MORE