Abstract
We consider a two-dimensional liquid crystal spatial light modulator (SLM) for femtosecond pulse shaping. Novel shaping schemes enabling a drastic speed increase (about four orders of magnitude as compared with conventional liquid-crystal SLM-based pulse shapers) and complex (phase and amplitude) femtosecond pulse shaping are discussed and experimentally demonstrated. In the first case, while a horizontal resolution of 1920 addressable pixels provided superior fidelity for generating complex waveforms, scanning across the vertical dimension (1080 pixels) has been used to facilitate an update rate in excess of 100 kHz. In the second case, we use the pixel count redundancy in the vertical direction and encode a spectrally-dependent diffraction grating for modulation of both spectral phases and amplitudes.
Original language | English |
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Pages (from-to) | 2049-2054 |
Number of pages | 6 |
Journal | Journal of Modern Optics |
Volume | 56 |
Issue number | 18-19 |
DOIs | |
State | Published - 1 Oct 2009 |
Externally published | Yes |
Keywords
- Coherent control
- Femtosecond pulse shaping
- Non-linear microscopy/spectroscopy
- Spatial light modulators
- Ultrafast science
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics