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HASO™ UV Shack-Hartmann wavefront sensors
 
  HASO-UVOur HASO UV Hartmann wavefront sensor is the ideal tool for customers working in the ultraviolet spectrum (190 - 300 nm).  They provide fast, accurate and reliable measurements by taking advantage of the HASO family's standard functionalities that customers have come to rely on, including absolute measurement, unequalled accuracy and insensitivity to vibration at speeds up to 20 Hz.

HASO UV is the ideal tool for UV optical component metrology (mirrors, lenses, flat windows, etc.) and are equally perfect for aligning and characterizing optical systems used in microlithography, measuring thermal and gravitational effects, and mechanical deformities. HASO UV is delivered with HASOv3, our industry leading wavefront analysis software. With just a few clicks, you can perform both zonal and modal wavefront reconstruction as well as visualize the spot image and raw camera data. Optional add-ons enable you to go even further and calculate the PSF, MTF, Strehl ratio and obtain the M² parameter.

Technical specifications are detailed in the table below. If you would like more information on our HASO UV wavefront sensors, please call +33 (0)1 64 86 15 60 or e-mail us by clicking here.

Aperture dimension 7.8 x 7.8 mm²
Number of sub-apertures dedicated for analysis 50 x 50
Tilt dynamic range till ± 1.5°
Focus dynamic range1 ± 0.030 m to ± ∞
Maximum operating aperture (half angle sinα) 0.1 (max)
Repeatability (rms) ∼ 1.5 nm
Wavefront measurement accuracy in absolute mode (rms)2 ∼ 3.5 nm
Wavefront measurement accuracy in relative mode (rms)3 ∼ 2.5 nm
Tilt measurement sensitivity (rms) 0.5 μrad
Focus measurement sensitivity (rms) 2.5.10-4m-1
Spatial resolution ~ 160 μm
Acquisition frequency / processing frequency ~ 20 Hz / ~ 3 Hz
Working wavelength range 193 – 300 nm
Working temperature 15 – 30° C / 5 – 45° C
Interface CamLink
(1) For the central wavelength: 470 λ for the HASO UV 50. (2) Wavefront directly measurement by the wavefront sensor (no added lens). (3) Difference between a referenced wavefront and the measured wavefront, in a range < 10 λ.
 
Companion software
 

HASOv3, delivered with all HASO sensors and available as an SDK, lets you get the most out of your wavefront sensor with wide-ranging functionalities. Click here to learn more.

Stitchwave is a unique software that complements HASOv3's move & measure option to enable you to characterize large surfaces. Click here to learn more.

 

Key HASO family features
 

Phase & intensity simultaneously and independently – Our patented sensor design enables you to measure both phase and intensity simultaneously and independently, in real time.

Absolute measurement Our proprietary calibration technology and meticulous quality controls protocols eliminate the need for a reference beam and allow you to perform true absolute measurement.

Dynamic Spot Tracking™, Auto Spot Finder™ & Rotated Square™ technology combined with the quality of our refractive microlens arrays provide superior accuracy and eliminate crossing spots, without comprising dynamic range.

 

Documentation
 

PDFProduct brochure - click the PDF icon to download.

 

Application notes
 

PDFTrue absolute measurement - This document talks about absolute measurement, what it is and how you can test your current wavefront sensor to see if it is capable. Click here to read the note.

 
 

PDFUsing your HASO with a beam profiler - In this application note, we discuss the utility and limitations of beam profilers and why HASO is the ideal complement. Click here to read the note.

 
 

PDFAdaptive optics for high-power lasers and the next generation of optical fuses - In this application note, we discuss how adaptive optics is currently used in high-power lasers and its future applications. Click here to read the note.

 
 

PDFAdaptive optics for high-power femtosecond lasers - In this application note, we discuss how we worked with the Max Plank Institute to implement an adaptive-optics closed-loop system into their femtosecond laser. Click here to read the note.

 
 
 
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