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Author Spotlight: Advancements and Applications in Nanoparticle Synthesis Through Laser Ablation in Liquids
Published on: June 16, 2023
Swept-wavelength lasers based on GaSb gain-chip technology for non-invasive biomedical sensing applications in the
Augustinas Vizbaras1, Ieva Šimonytė1, Arūnas Miasojedovas1
1UAB Brolis Semiconductors, Molėtų pl. 73, LT-14259 Vilnius, Lithuania.
Abstract:
The infrared spectral region beyond 1.7 μm is of utmost interest for biomedical applications due to strong overtone and combination absorption bands in a variety of important biomolecules such as lactates, urea, glucose, albumin, etc. In this article, we report on recent progress in widely tunable swept-wavelength lasers based on type-I GaSb gain-chip technology, setting a new state-of-the-art in the 1.7 - 2.5 μm range laser sources. We provide an application example for the spectroscopic sensing of several biomolecules in a cuvette as well as an experimental demonstration of a non-invasive in-vivo sensing of human serum albumin through the skin.
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