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Laser OpticsAxicons

Plano-Convex Axicons

Laser OpticsAxicons

Plano-Convex Axicons

Material

UVFS

Type

Regular, precision

Dimensions

Ø25.4 mm

Surface quality, S-D

40-20

Surface irregularity, RMS

<λ/4 @ 632.8 mm

Apex angle

90 – 179°

Apex angle tolerance

±0.02 – 0.5°

AR coatings

UV, VIS, NIR, uncoated

Metrology Services Typical Items: Axicons

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Plano-convex axicons (conical lenses) are used for a variety of applications.

Altechna offers two types of plano-convex axicons: regular and precision. Regular axicons create an annular beam in a far-field, while precision-type axicons also transform a Gaussian beam into a non-diffractive Bessel beam in the near field.

The quality of the generated ring and Bessel beam as well as all mechanical tolerances are fully evaluated in our metrology laboratory using different measurement methods. Please feel free to contact our support team with any questions you may have.

Main features Regular Precision
Production method: Conventional polishing CNC polishing
Tip accuracy: Medium Very high
Performance: Ring generation Ring + Bessel beam generation
Apex angle: 90 - 179° 170 - 179°
Apex angle tolerance: ± 0.5° ± 0.05°
Application: Laser drilling, microscopy, medical applications Scanning imaging systems, atom or molecule guiding, microfabrication
Typical Items for Non-Precision (Ring generation)
Apex Angle Apex Angle Tolerance Edge Thickness AR Coatings Product ID Apex Angle Apex Angle Tolerance Edge Thickness AR Coatings Product ID
90 ±0.5 3.5 UV 1-APX-2-UV-A254 170 ±0.5 3.5 NIR 1-APX-2-NIR-E254
90 ±0.5 3.5 VIS 1-APX-2-VIS-A254 170 ±0.5 3.5 Uncoated 1-APX-2-E254
90 ±0.5 3.5 NIR 1-APX-2-NIR-A254 175 ±0.5 3.5 UV 1-APX-2-UV-F254
90 ±0.5 3.5 Uncoated 1-APX-2-A254 175 ±0.5 3.5 VIS 1-APX-2-VIS-F254
130 ±0.5 3.5 UV 1-APX-2-UV-B254 175 ±0.5 3.5 NIR 1-APX-2-NIR-F254
130 ±0.5 3.5 VIS 1-APX-2-VIS-B254 175 ±0.5 3.5 Uncoated 1-APX-2-F254
130 ±0.5 3.5 NIR 1-APX-2-NIR-B254 176 ±0.5 3.5 UV 1-APX-2-UV-G254
130 ±0.5 3.5 Uncoated 1-APX-2-B254 176 ±0.5 3.5 VIS 1-APX-2-VIS-G254
140 ±0.5 3.5 UV 1-APX-2-UV-C254 176 ±0.5 3.5 NIR 1-APX-2-NIR-G254
140 ±0.5 3.5 VIS 1-APX-2-VIS-C254 176 ±0.5 3.5 Uncoated 1-APX-2-G254
140 ±0.5 3.5 NIR 1-APX-2-NIR-C254 178 ±0.5 3.5 UV 1-APX-2-UV-H254
140 ±0.5 3.5 Uncoated 1-APX-2-C254 178 ±0.5 3.5 VIS 1-APX-2-VIS-H254
160 ±0.5 3.5 UV 1-APX-2-UV-D254 178 ±0.5 3.5 NIR 1-APX-2-NIR-H254
160 ±0.5 3.5 VIS 1-APX-2-VIS-D254 178 ±0.5 3.5 Uncoated 1-APX-2-H254
160 ±0.5 3.5 NIR 1-APX-2-NIR-D254 179 ±0.5 3.5 UV 1-APX-2-UV-J254
160 ±0.5 3.5 Uncoated 1-APX-2-D254 179 ±0.5 3.5 VIS 1-APX-2-VIS-J254
170 ±0.5 3.5 UV 1-APX-2-UV-E254 179 ±0.5 3.5 NIR 1-APX-2-NIR-J254
170 ±0.5 3.5 VIS 1-APX-2-VIS-E254 179 ±0.5 3.5 Uncoated 1-APX-2-J254
Typical Items for Precision (Ring + Bessel beam generation)
Apex Angle Apex Angle Tolerance Edge Thickness AR Coatings Product ID Apex Angle Apex Angle Tolerance Edge Thickness AR Coatings Product ID
170 ±0.05 5 UV 1-APX-2-UV-E254-P 176 ±0.05 5 NIR 1-APX-2-NIR-G254-P
170 ±0.05 5 VIS 1-APX-2-VIS-E254-P 176 ±0.05 5 Uncoated 1-APX-2-G254-P
170 ±0.05 5 NIR 1-APX-2-NIR-E254-P 178 ±0.05 5 UV 1-APX-2-UV-H254-P
170 ±0.05 5 Uncoated 1-APX-2-E254-P 178 ±0.05 5 VIS 1-APX-2-VIS-H254-P
175 ±0.05 5 UV 1-APX-2-UV-F254-P 178 ±0.05 5 NIR 1-APX-2-NIR-H254-P
175 ±0.05 5 VIS 1-APX-2-VIS-F254-P 178 ±0.05 5 Uncoated 1-APX-2-H254-P
175 ±0.05 5 NIR 1-APX-2-NIR-F254-P 179 ±0.05 5 UV 1-APX-2-UV-J254-P
175 ±0.05 5 Uncoated 1-APX-2-F254-P 179 ±0.05 5 VIS 1-APX-2-VIS-J254-P
176 ±0.05 5 UV 1-APX-2-UV-G254-P 179 ±0.05 5 NIR 1-APX-2-NIR-J254-P
176 ±0.05 5 VIS 1-APX-2-VIS-G254-P 179 ±0.05 5 Uncoated 1-APX-2-J254-P

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