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Thermal Emission Spectroscopy for Single Nanoparticle Temperature Measurement: Optical System Design and Calibration

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posted on 2023-11-30, 06:49 authored by Bryan A. Long, Daniel J. Rodriguez, Chris Y. Lau, Scott L. Anderson
We discuss the design of an optical system that allows measurement of 600 nm to 1650 nm emission spectra for individual nanoparticles (NPs), laser heated in an electrodynamic trap in controlled atmospheres. An approach to calibration of absolute intensity vs. wavelength for very low emission intensities is discussed, and examples of NP graphite and carbon black spectra are used to illustrate the methodology.

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