Buchumschlag

Challenges and opportunities in 3D laser printing based on (1+1)-photon absorption

Most light-based 3D printing methods rely on optical or chemical nonlinearities to spatially confine the polymerization reaction. In 3D micro- and nanoprinting, this nonlinearity can be provided by two-photon absorption, which describes the simultaneous absorption of two photons. To achieve comparab...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Hahn, Vincent (VerfasserIn) , Bojanowski, N. Maximilian (VerfasserIn) , Rietz, Pascal (VerfasserIn) , Feist, Florian (VerfasserIn) , Kozlowska, Mariana (VerfasserIn) , Wenzel, Wolfgang (VerfasserIn) , Blasco, Eva (VerfasserIn) , Bräse, Stefan (VerfasserIn) , Barner-Kowollik, Christopher (VerfasserIn) , Wegener, Martin (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 18 January 2023
In: ACS photonics
Year: 2023, Jahrgang: 10, Heft: 1, Pages: 24-33
ISSN:2330-4022
DOI:10.1021/acsphotonics.2c01632
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1021/acsphotonics.2c01632
Volltext
Verfasserangaben:Vincent Hahn, N. Maximilian Bojanowski, Pascal Rietz, Florian Feist, Mariana Kozlowska, Wolfgang Wenzel, Eva Blasco, Stefan Bräse, Christopher Barner-Kowollik, and Martin Wegener
Beschreibung
Zusammenfassung:Most light-based 3D printing methods rely on optical or chemical nonlinearities to spatially confine the polymerization reaction. In 3D micro- and nanoprinting, this nonlinearity can be provided by two-photon absorption, which describes the simultaneous absorption of two photons. To achieve comparable absorption cross sections for two-photon as in one-photon absorption, short and intense laser pulses with intensities in the range of 1 TW/cm2 are typically required. Herein, we review three emerging excitation processes that provide a quadratic nonlinearity versus intensity without relying on two-photon absorption: upconversion luminescence, two-step absorption, and triplet-triplet annihilation. We term these “(1 + 1)-photon absorption”. Such processes allow for using continuous-wave lasers at much lower peak laser powers and at much lower cost than those typical for two-photon absorption. We review recent progress, describe current challenges, and outline future perspectives.
Beschreibung:Online veröffentlicht 14 Dezember 2022
Gesehen am 20.03.2023
Beschreibung:Online Resource
ISSN:2330-4022
DOI:10.1021/acsphotonics.2c01632

Ähnliche Einträge