Design and manufacture of diffractive
optical elements

Elongated Focus


Holo/Or's elongated depth of focus is a new solution achieving extended depth of focus as well as high lateral resolution (small beam waist).
Optical elements that present these two conflicting characteristics simultaneously are needed for a variety of applications, including:
  • Laser drilling and cutting in transparent materials (Glass, silica, …)
  • Microscopy
  • Profile measurements
  • Precision alignment
Conventional optical elements (spherical lenses, mirrors, etc.) cannot achieve these two goals simultaneously; high lateral resolution requires high numerical apertures (NA), whereas long depth of focus requires low NA.
Our novel method achieves a focal "cylinder" with sharp edges and extended depth of focus, while keeping the laser spot size very small.
The new solution completes the existing family of multifocal products. The benefit of the extended focus, vs. Multifocal products, is that it produces a continuous intensity profile along the DOF, and doesn't suffer from areas with low energy between neighboring focal spots
Extended Depth of FocusIntensity distribution in z-x plane
Please enter your laser wavelength and use the filter products below.
Moreover, for a quick quotation for products you see in the table, please check all the desired PNs at the last column of the table and click on the RFQ calculator icon at the column title.
Need shorter lead time? Lead time of uncoated DOE is 5 weeks shorter!
Click here for RFQ and questions


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Alternatively


example: EF-001-I-Y-A

Materials:Fused Silica, ZnSe
Wavelength range:193nm to 10.6um
DOE design:2-level (binary) to 16-level
Diffraction efficiency:86% - 96%
Element size:Few mm to 100mm
Coating (optional):AR/AR Coating
Custom Design:Almost any size
Features:
  • High efficiency > 95%
  • Depth of Focus – customable
  • Spot size along focal "cylinder" – close to diffraction limit
  • High damage threshold (Fused Silica)
  • Optional Ar/Ar coating
  • Available for different wavelength
Applications:
  • Cutting
  • Drilling
  • Microscopy
@Copyright 2017, Holo/Or Ltd. P.O.B 1051, Rehovot, 7611001 Israel
Phone: +972-89409687/8, Fax: +972-89409606

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