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.444687Citations: 2data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-12-08References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here