Ultra-broadband high-resolution microdroplet spectrometers for the near infrared

Year: 2022

Authors: Capezzuto M., D’Ambrosio D., Avino S., Giorgini A., Gagliardi G., Malara P.

Autors Affiliation: CNR, Ist Nazl Ott, CNR INO, Via Campi Flegrei 34, I-80078 Pozzuoli, NA, Italy.

Abstract: By stabilizing the evaporation dynamics of a microliter
fluorocarbon droplet, we demonstrate a fast-scan optoflu-
idic Fourier transform (FT) spectrometer on the tip of
an optical fiber operating in the 1000–2000 nm window
with a resolution of 3.5 cm−1 (i.e., <1 nm at 1560 nm). Compared with other FT near-infrared (NIR) small-scale spectrometers reported in the literature, the fluorocarbon droplet spectrometer shows the largest wavelength span and span/resolution ratio, allowing spectral analysis of broad- band or narrowband radiation to be easily performed. Our results open the way for the practical application of droplet spectrometers as advanced optofluidic NIR analyzers with small size and low cost that are capable of operating in harsh environments, even in the absence of electrical power sources Journal/Review: OPTICS LETTERS

Volume: 47 (1)      Pages from: 102  to: 105

KeyWords: Fourier transform spectrometer, chip, FTIR spectrometer, fiber tip, droplet evaporation.
DOI: 10.1364/OL.444687

ImpactFactor: 3.600
Citations: 2
data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-12-01
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