PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
2-photon absorption mediated by short laser pulses provides an optical nonlinearity that is highly desirable or even mandatory for various forms of volumetric (3D) laser printing. Here, we review and compare different approaches that replace 2-photon absorption by some sort of cascaded 1-photon absorption processes. Such “(1+1)-photon absorption” processes can be accomplished by inexpensive continuous-wave lasers at comparably low powers. We present recently published and unpublished results, including screening of molecules suitable for one-color and two-color 2-step absorption. In addition, we investigate the possibility of optical depletion processes at a laser wavelength that is distinct from the excitation wavelength.
Martin Wegener
"(1+1)-photon absorption for 3D laser printing", Proc. SPIE PC12433, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XVI, PC124330J (17 March 2023); https://doi.org/10.1117/12.2645444
ACCESS THE FULL ARTICLE
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
The alert did not successfully save. Please try again later.
Martin Wegener, "(1+1)-photon absorption for 3D laser printing," Proc. SPIE PC12433, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XVI, PC124330J (17 March 2023); https://doi.org/10.1117/12.2645444