In:
Optics Express, Optica Publishing Group, Vol. 31, No. 2 ( 2023-01-16), p. 2833-
Kurzfassung:
Here, we unlock the properties of the recently introduced on-chip hollow-core microgap waveguide in the context of optofluidics which allows for intense light-water interaction over long lengths with fast response times. The nanoprinted waveguide operates by the anti-resonance effect in the visible and near-infrared domain and includes a hollow core with defined gaps every 176 µm. The spectroscopic capabilities are demonstrated by various absorption-related experiments, showing that the Beer-Lambert law can be applied without any modification. In addition to revealing key performance parameters, time-resolved experiments showed a decisive improvement in diffusion times resulting from the lateral access provided by the microgaps. Overall, the microgap waveguide represents a pathway for on-chip spectroscopy in aqueous environments.
Materialart:
Online-Ressource
ISSN:
1094-4087
Sprache:
Englisch
Verlag:
Optica Publishing Group
Publikationsdatum:
2023
ZDB Id:
1491859-6