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Focal Shaping
![[ Holo-or ]<br>Bessel Beam Elongated Focus](/thum_img/mjct/goods_img3/de6b034deb8eeaaa98f997364e14bafe_water_4de0b559c44a49f5f544fca08f3bc282_c0_w300_h300.jpg)
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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 trasparent 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.
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
GENERAL SPECIFICATONS:
| MATERIALS | Fused Silica, ZnSe, Germanium |
|---|---|
| WAVELENGTH RANGE | 193nm to 10.6um |
| DOE DESIGN | 2-level (binary) to 16-level |
| DIFFRACTION EFFICIENCY | 86% - 96% |
| ELEMENT SIZE | Few mm to 150mm |
| COATING (OPTIONAL) | AR/AR Coating |
| CUSTOM DESIGN | Almost any size |
DETAILED SPECIFICATIONS:
| PN | λ [nm] | Depth Of Focus [um] | Beam Dia [mm] | Remarks |
| EF-007-I-Y-A | 1064 | 53 | 9 | Double EF |
| EF-008-I-Y-A | 1064 | 120 | 6 | Double EF |
| EF-010-I-Y-A | 1064 | 43 | 10 | Double EF |
| EF-011-I-Y-A | 1064 | 949 | 2 | Double EF |
| EF-015-I-Y-A | 1064 | 17159-618 ** | 1-15 | |
| EF-016-I-Y-A | 1064 | 126831-1440 ** | 1-15 | |
| EF-017-I-Y-A | 1064 | 47072-1031 ** | 1-15 | |
| EF-019-I-Y-A | 1064 | 386-97 ** | 4-15 | |
| EF-020-I-Y-A | 1064 | 7405-3145 ** | 1-15 | |
| EF-022-I-Y-A | 1064 | 7645-1179 ** | 1-15 | |
| EF-023-I-Y-A | 1064 | 631-255 ** | 3-7 | |
| EF-027-I-Y-A | 1064 | 2950-743 ** | 2-7 | |
| EF-002-I-Y-A | 1064 | 270 | 4 | Double EF |
| EF-006-I-Y-A | 1064 | 93 | 7 | Double EF |
| EF-009-I-Y-A | 1064 | 68 | 8 | Double EF |
| EF-014-I-Y-A | 1064 | 454 | 3 | Double EF |
| EF-030-I-Y-A | 1064 | 496 | 3 | Double EF |
| EF-021-I-Y-A | 1064 | 8060-1529 ** | 1-15 | |
| EF-024-I-Y-A | 1064 | 1544-183 ** | 2-15 | |
| EF-025-I-Y-A | 1064 | 1996-513 ** | 2-7 | |
| EF-026-I-Y-A | 1064 | 893-364 ** | 3-7 | |
| EF-028-I-Y-A | 1064 | 1544-183 ** | 2-15 | |
| EF-029-I-Y-A | 1064 | 6818-851 ** | 1-15 | |
| EF-031-I-Y-A | 1064 | 7913-2538 ** | 1-15 |
