Imagine Optic’s HASO EUV wavefront sensor is a key instrument to understand the amplitude and phase transfer parameters from a femtosecond (fs) laser beam to high-order harmonic generation and also Wavefront analysis. It delivers a single-shot EUV wavefront measurements of HHG.
In addition, thanks to adaptive optics control of the fs beam, researchers at Lund University and LOA demonstrated drastic improvement of harmonic wavefront, energy and beam profile.
Designed and built in collaboration with our customers and with their needs as the top priority, the HASO EUV incorporates our patented rotated square technology to offer high spatial sampling and wide dynamic range. It is the ideal choice for HHG, EUV lithography, synchrotron and EUV-FEL beam analysis. When used for adaptive optics, the EUV becomes a powerful tool for that provides you with micro and nano-beam focusing, a high Strehl ratio and precise control of the focal spot shape.
So a paper was published by H. DACASA, et al Optics Express 27(3) 2656
Single-shot extreme-ultraviolet wavefront measurements of high-order harmonics
<< First of all, we perform wavefront measurements of high-order harmonics. Above all, we use an extreme-ultraviolet (XUV) Hartmann sensor. And we also study how their spatial properties vary with different generation parameters, such as pressure in the nonlinear medium, fundamental pulse energy and duration as well as beam size. In some conditions, excellent wavefront quality (up to ?/11λ/11) was obtained.
In addition the high throughput of the intense XUV beamline at the Lund Laser Centre allows us to perform single-shot measurements of both the full harmonic beam. As a result, It is generated in argon and individual harmonics selected by multilayer mirrors. In conclusion, we theoretically analyze the relationship between the spatial properties of the fundamental and those of the generated high-order harmonics.
Thus gaining insight into the fundamental mechanisms involved in high-order harmonic generation (HHG).>>
If you’re interested in finding out more about our X-EUV line of wavefront sensors, you can reach us at sales@imagine-optic.com or through the contact form (red enveloppe on the side).