Year: 2017
Type: article
Abstract: We present a method by which the spectral intensity of an ultrafast laser pulse can be accumulated at selected frequencies by a controllable amount. Using a 4-f pulse shaper we modulate the phase of the frequency components of a femtosecond laser. By inducing femtosecond filamentation with the modulated pulse, we can concentrate the spectral amplitude of the pulse at various frequencies. The phase mask applied by the pulse shaper determines the frequencies for which accumulation occurs, as well as the intensity of the spectral concentration. This technique provides a way to obtain pulses with adjustable amplitude using only phase modulation and the nonlinear response of a medium. This provides a means whereby information which is encoded into spectral phase jumps may be decoded into measurable spectral intensity spikes.
Source: Scientific Reports
DOI: 10.1038/srep43367
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,690
Awards: G1410957969, G1523888516, G1527163402, G3392305090, G361644143, G3760052028, G4243936892, MRI: Development of a microfluidic flow cytometer for high-throughput noninvasive single-cell physio-chemical analysis, G4608631916, G4792606201, Crystal-Based Molecular Modulation for Arbitrary Spatio-Temporal Optical Waveform Synthesis, G6098521345, Shedding new light on cell-matrix interactions: instrumentation development for non-invasive, real-time microscopic elasticity imaging, G7872090265, G8876996369, Facilitating remote chemical sensing with random Raman lasing
OpenAlex ID: W2592441637