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White Dwarf TPA

Most Powerful Laser for Two-Photon Absorption (TPA) Nanolithography.
  • Wavelength: 800 nm
  • Repetition rate: 2 MHz
  • Average power: >8 W
  • Pumped by industry-grade Yb-femtosecond laser

Introduction

Most Powerful Lasers for Two-Photon Absorption (TPA) Nanolithography.

The White Dwarf TPA is a femtosecond laser system specifically designed for two-photon absorption (TPA) maskless nanolithography, offering unparalleled performance and precision.

The exceptional average power and repetition rate of the White Dwarf TPA enables researchers and engineers to scale nano-resolution and production speed, reaching new horizons of nanofabrication. Its compact, one-box solution ensures robustness and ease of machine integration.

Enhanced pulse control allows you to match your pulse intensity and dispersion management to the sample – for ultimate nanofabrication productivity.

Features

Highest Average Power

more than 8 W at 2 MHz repetition rate.

One-Box Design

an integrated temperature stabilized one-box design enhancing compactness and robustness.

Enhanced Pulse Control

optional dispersion compensation for optimal pulse intensity at the sample.

Specs

WD-TPA WD-TPA-pro
Central wavelength 800 nm 800 nm
Average power > 5 W > 8 W
Pulse duration
FWHM
< 50 fs < 50 fs
Dispersion compensation
optional
Up to -6000 fs² up to -6000 fs²
Pulse energy
compressed
> 2.5 µJ > 4 µJ
Repetition rate 2 MHz 2 MHz
Beam quality M2 < 1.3 < 1.3
Power stability
12 hrs
< 0.5% < 0.5%
Dimensions 95 cm x 65 cm 95 cm x 65 cm


Applications

  • Maskless TPA Nanolithography
  • Opto-couplers
  • Microlenses
  • Metamaterials
  • Surface functionalization
  • Multi-photon imaging

Downloads


FAQ

What distinguishes the White Dwarf TPA from other laser systems used in TPA Nanolithography

The White Dwarf TPA delivers more than 8 W of average power at microjoule-level pulse energies, while maintaining an ultrashort pulse duration of 50 fs in a compact system. In contrast, common laser systems used in TPA provide either only a few Watts at nanojoule pulse energies, or higher power, but with few-100 femtoseconds. Thus, the White Dwarf TPA provides the highest peak power at high repetition rate to drastically improve productivity in TPA maskless nanolithography.

How can I improve my nanoprinting throughput using the higher laser power of the White Dwarf TPA?

Typically, various multiplexing strategies are being implemented in the materials processing system. Those include spatial multiplexing using microlens arrays, light beads multiplexing, or advanced fast-scanning techniques. Contact us for more information.


Publications