![High-aspect 3D two-photon polymerization structuring with widened objective working range (WOW-2PP) | Light: Science & Applications High-aspect 3D two-photon polymerization structuring with widened objective working range (WOW-2PP) | Light: Science & Applications](https://media.springernature.com/m685/springer-static/image/art%3A10.1038%2Flsa.2013.72/MediaObjects/41377_2013_Article_BFlsa201372_Fig1_HTML.jpg)
High-aspect 3D two-photon polymerization structuring with widened objective working range (WOW-2PP) | Light: Science & Applications
![Femtosecond-laser induced two-photon absorption of GaN and AlxGa1-xN thin films: Tuning the nonlinear optical response by alloying and doping - ScienceDirect Femtosecond-laser induced two-photon absorption of GaN and AlxGa1-xN thin films: Tuning the nonlinear optical response by alloying and doping - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S0925838820301912-fx1.jpg)
Femtosecond-laser induced two-photon absorption of GaN and AlxGa1-xN thin films: Tuning the nonlinear optical response by alloying and doping - ScienceDirect
![Challenges and Opportunities in 3D Laser Printing Based on (1 + 1)-Photon Absorption | ACS Photonics Challenges and Opportunities in 3D Laser Printing Based on (1 + 1)-Photon Absorption | ACS Photonics](https://pubs.acs.org/cms/10.1021/acsphotonics.2c01632/asset/images/large/ph2c01632_0005.jpeg)