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Now showing items 11-18 of 18
Generation of 1.5-octave intense infrared pulses by nonlinear interactions in DAST crystal
(2015)
Infrared pulses with large spectral width extending from 1.2 to 3.4 μm are generated in the organic crystal DAST (4-N, N-dimethylamino-4'-N'-methylstilbazolium tosylate). The input pulse has a central wavelength of 1.5 μm ...
High-energy bow tie multi-pass cells for nonlinear spectralbroadening applications
(2022-01-24)
Multi-pass cells (MPCs) have emerged as very attractive tools for spectral broadening and
post-compression applications. We discuss pulse energy limitations of standard MPCs considering
basic geometrical scaling principles ...
Multi-watt, multi-octave, mid-infrared femtosecond source
(2018)
Spectroscopy in the wavelength range from 2 to 11 μm (900 to 5000 cm−1) implies a multitude of applications in fundamental physics, chemistry, as well as environmental and life sciences. The related vibrational transitions, ...
Multi-gigawatt peak power post-compression in a bulk multi-pass cell at a high repetition rate
(2022-09-27)
The output of a 200 kHz, 34 W, 300 fs ytterbium amplifier
is compressed to 31 fs with >88% efficiency to reach a peak
power of 2.5 GW, which to date is a record for a singlestage bulk multi-pass cell. Despite operation ...
Ultrafast Pulse Compression in Bulk with > 20 Times Spectral Broadening Factor from a Single Stage
(2021-11-01)
We introduce the combination of multi-pass cell and multi-plate spectral broadening. We demonstrate the compression of 110-μJ pulses from 900-fs to 60-fs in a single stage and report broadening to 38-fs transform-limit by ...
CEP-stable few-cycle pulses with more than 190 μJ of energy at 100 kHz from a noncollinear optical parametric amplifier
(2017)
Noncollinear optical parametric amplifiers (NOPAs) have become the leading technique for the amplification of carrier-envelope phase (CEP)-stable, few-cycle pulses at high repetition rate and high average power. In this ...
Combined range ambiguity resolution and noise reduction in lidar signal processing
(2018)
When the interval between transmitted pulses is shorter than the time of flight, it is not straightforward for a lidar to determine the distance uniquely. We present a method that uses varying pulse intervals, constructs ...
Few-cycle pulse generation by double-stage hybrid multi-pass multi-plate nonlinear pulse compression
(2023-02-10)
Few-cycle pulses present an essential tool to track ultrafast dynamics in matter and drive strong field effects. To address photon-hungry applications, high average power lasers are used which, however, cannot directly ...