Publications by authors named "Dien Wang"
Article Synopsis
- High-throughput fabrication techniques are needed for creating complex 3D structures with tiny features across various fields.
- Two-photon lithography (TPL) is a potential solution but suffers from slow speeds due to its point-by-point approach.
- Researchers improved TPL by using a focused ultrafast laser for a projection-based method, significantly boosting production speed and enabling the creation of nanowires under 175 nanometers wide in just milliseconds.
Two-photon polymerization (TPP) is the most precise 3-D printing process that has been used to create many complex structures for advanced photonic and nanoscale applications. However, to date the technology still remains a laboratory tool due to its high operation cost and limited fabrication rate, i.e.
View Article and Find Full Text PDFIn this Letter, we present an ultrafast nonmechanical axial scanning method for two-photon excitation (TPE) microscopy based on binary holography using a digital micromirror device (DMD), achieving a scanning rate of 4.2 kHz, scanning range of ∼180 μm, and scanning resolution (minimum step size) of ∼270 nm. Axial scanning is achieved by projecting the femtosecond laser to a DMD programmed with binary holograms of spherical wavefronts of increasing/decreasing radii.
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