Higher-order S-waveplate converts linear polarization to higher-order polarization patterns.
Fabrication of higher-order S-Waveplate is based on the inscription of self-organized nanograting’s inside fused silica glass using a femtosecond laser. The inscription of these self-organized nanogratings inside the glass sets a new standard for precision and performance.
Main features
Converts linear polarization to higher-order polarization patterns.
Converts circular polarization to an optical vortex.
Can generate higher topological charge optical vortices.
High damage threshold: 63,4 J/cm² @1064 nm, 10 ns and 2,2 J/cm² @1030 nm, 212 fs.
94% transmission @ 1st harmonic, 85% @ 3rd harmonic, 92% @ 2nd harmonic, of most SS lasers, no AR coating | 99% with AR.
100% polarization conversion.
A large aperture (up to 15 mm; the standard is 6 mm).
Higher-order S-waveplate converts linear polarization to higher-order polarization patterns.
The fabrication of s-waveplates is based on the inscription of self-organized nanograting’s inside fused silica glass using a femtosecond laser. The inscription of these self-organized nanogratings inside the glass sets a new standard for precision and performance.
LIDT measurements at fs regime (full report) and ns regime (full report) show our S-waveplates have laser irradiation resistance similar to uncoated fused silica substrates. LIDT value measured at 1064 nm, ~10 ns is 63,4 J/cm² and it is not dropping while increasing exposure time. It proves, our waveplates are very high performance and suitable for high power laser applications.
Examples of fast axis patterns for 2nd (left), 3rd (center), and 4th (right) order S-Waveplates (measured with Hinds Instruments Exicor MicroImager).
Technical higher-order S-Waveplate features
High damage threshold | LIDT – 63.4 J/cm² @ 1064 nm, 10 ns; 2.2 J/cm² @ 1030 nm, 212 fs
High transmission (no AR coating) – 94% @ 1030 nm, 92% @ 515 nm, 85% @ 343 nm of most SS lasers | 99% with AR coating
Combining HOS with an axicon enables vector Bessel beams (VBBs) to be obtained that can be used for the efficient drilling of transparent materials.
Beam spatial intensity profiles of the 1'st, 4'th and 6'th order vector Bessel-Gauss beams.
Transparent material modification on the D263t glass sample surface.
Main higher-order S-Waveplate benefits
Allows focusing into smaller spot size (using NA > 0.9)
Ensures the same machining properties in all directions
Ensures the same cutting speed in all directions
Enable ring-shaped intensity distribution in focus (at NA <0.8)
Increases cutting speed
Suitable for high LIDT applications
Suitable for high power lasers
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Higher-order S-Waveplate application examples
STED microscopy
Micromachining
Micro drilling high-aspect-ratio channels
Generate any cylindrical vector vortex
Multiple particle trapping
Micro-mill is driven by optical tweezers
Use as an intracavity polarization-controlling element in cladding-pumped ytterbium-doped fiber laser for radially polarized output beam generation
Combining HOS with an axicon enables vector Bessel beams (VBBs) to be obtained that can be used for the efficient drilling of transparent materials.
Beam spatial intensity profiles of the 1’st, 4’th and 6’th order vector Bessel-Gauss beams (a, d, g) and their single polarization component spatial intensity distribution when polarizer was rotated at two different angles.
Transparent material modification on the D263t glass sample surface with higher order VBB‘s and their transverse polarization components. 1’st, 4’th and 6’th order VBB damages are depicted in a, d, and g respectively.
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Mendoza-Hernández, J., Ferrer-Garcia, M. F., Rojas-Santana, J. A., & Lopez-Mago, D. (2019). Cylindrical vector beam generator using a two-element interferometer. Optics express, 27(22), 31810-31819.
Justas Baltrukonis, Orestas Ulcinas, Pavel Gotovski, Sergej Orlov, Vytautas Jukna, “Realization of higher order vector Bessel beams for transparent material processing applications,” Proc. SPIE 11268, Laser-based Micro- and Nanoprocessing XIV, 112681D (2 March 2020); doi: 10.1117/12.2545093
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All items listed on the website are custom-made after we receive your order and payment. The fabrication process typically takes 2 to 4 weeks, depending on the specific item ordered. If you choose the AR coating option, an additional 2 weeks will be added to the delivery timeframe. The final delivery date will be provided in the quotation.
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