Our cto michael presented at spie Photonics west our tunable White Dwarf OPCPA from 250-1300 nm2/19/2020
Our CTO Michael presented at the SPIE Photonics West 2020 conference our latest developments: A dual channel laser system with gap-less tuning from 250 to 1300 nm at megahertz repetition rates for time resolved photoelectron emission microscopy and spectroscopy. Based on the success story of our White Dwarf OPCPA with high performance operation at a single wavelength, we now also provide tunable solutions for demanding spectroscopy and microscopy applications. Ultrashort pulses (< 30 fs) are delivered in a spectral range from 650 to 1300 nm. This makes the White Dwarf WD-800-tunable the most flexible non-colinear OPA on the market. Additionally, the wavelength range can be further extended to the UV via second harmonic (SHG) and third harmonic generation (THG). Due to our gap-less approach, material scientists have access to the green wavlength range (500 nm) and can, for example, study the transport of carriers excited by a green pump pulse. Equipped with two outputs, our White Dwarf WD-800-tunable-dual offers two synchronized channels and enables pump-probe studies. Thus, time-resolved ARPES or PEEMS benefit from our very flexible solution while maintaining high temporal resolution to study ultrafast dynamics in materials. Our White Dwarf WD-800-tunable can operate at 1, 2 or 4 MHz for fast image acquisition and to suppress space charge effects. A pulse-picker of the integrated pump laser (Coherent Monaco 60 W incl.) can be used to reduce the repetition rate in alignment mode or for lower average power operation.  |