0
Sales engineer
Arminas Butkus +370 5 219 4884
Axicons (conical lenses)
INQUIRY FORM
please fill this field
please fill this field
please fill this field
please fill this field
please fill this field
close
close
Success!

One of our 4Lasers team members will contact you as soon as possible.

GO BACK TO HOMEPAGE

Axicons (conical lenses)

Main features

 

  • Fabricated from high-quality UV grade fused silica, BK7 glasses
  • Plano-convex and plano-concave designs
  • Regular and advanced grade axicons
  • Wide axicon apex angle selection
  • Antireflective coatings, customization available upon request

 

Application examples

 

  • Corneal surgery
  • Optical coherence tomography
  • Atom trapping
Request custom View stock
  • Description
  • Specifications

Axicons (conical lenses) are famous due ability to transform collimated Gaussian beam into approximation of non-difracting Bessel beam in the near-field and ring-shaped beam in the far-field. Most often they are used in tandem with other types of lenses. 4Lasers provide plano-convex and plano-concave design conical lenses. These lenses feature one convex surface or one concave conical surface, respectively, while second surfaces are plano in both cases.

Axicons
Type Plano-convex Plano-concave
Substrate material BK7, UVFS UVFS
Wavelength range Uncoated BK7 axicons: 350 nm - 2 μm
Uncoated UVFS axicons: 185 nm - 2,1 μm
Clear aperture >90% >90%
Diameter tolerance +0/-0,1 mm +0/-0,1 mm
Apex rounding Regular: <⌀1 mm
Advanced: <⌀0,4 mm
N/A
Angle tolerance Regular: ±0,5°
Advanced: ±0,1°
Regular: ±0,5
Central hole N/A Regular: ~⌀1 mm,
depth ~2 mm
Protective chamfers <0,35 mm at 45° <0,35 mm at 45°
Coatings Uncoated Uncoated
Surface quality Regular: 60-40 S-D
Advanced: 40-20 S-D
60-40 S-D
Surface irregularity Regular: <1λ@632,8 nm
Advanced: <λ/[email protected],8 nm
<1λ@632,8 nm
Coatings Uncoated Uncoated
Order your item
Material Shape Grade Diameter Apex angle Angle SKU price quantity
UVFS
Plano-convex
Advanced
⌀25,4 mm
130°
25°
7632
360 €
UVFS
Plano-convex
Advanced
⌀25,4 mm
140°
20°
7633
360 €
UVFS
Plano-convex
Advanced
⌀25,4 mm
160°
10°
7634
360 €
UVFS
Plano-convex
Advanced
⌀25,4 mm
170°
7635
360 €
UVFS
Plano-convex
Advanced
⌀25,4 mm
175°
2,5°
7636
360 €
UVFS
Plano-convex
Advanced
⌀25,4 mm
176°
7637
360 €
UVFS
Plano-convex
Advanced
⌀25,4 mm
178°
7638
360 €
UVFS
Plano-convex
Advanced
⌀25,4 mm
179°
0,5°
7639
360 €
BK7
Plano-convex
Regular
⌀25,4 mm
140°
20°
7640
160 €
BK7
Plano-convex
Regular
⌀25,4 mm
160°
10°
7641
160 €
BK7
Plano-convex
Regular
⌀25,4 mm
170°
7642
160 €
BK7
Plano-convex
Regular
⌀25,4 mm
175°
2,5°
7643
160 €
BK7
Plano-convex
Regular
⌀25,4 mm
178°
7644
160 €
UVFS
Plano-concave
Regular
⌀25,4 mm
140°
20°
7645
480 €
UVFS
Plano-concave
Regular
⌀25,4 mm
160°
10°
7646
480 €
UVFS
Plano-concave
Regular
⌀25,4 mm
170°
7647
480 €
UVFS
Plano-concave
Regular
⌀25,4 mm
175°
2,5°
7648
480 €
UVFS
Plano-concave
Regular
⌀25,4 mm
179°
7649
480 €