Skip to Main content Skip to Navigation
Journal articles

High spatial resolution Raman thermometry analysis of TiO2 microparticles

N. Lundt S. T. Kelly T. Rodel 1 B. Remez A. M. Schwartzberg A. Ceballos C. Baldasseroni P.A. F. Anastasi M. Cox F. Hellman S. R. Leone 2 M. K. Gilles
1 CSNSM PS1
CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse, CSNSM - Centre de Sciences Nucléaires et de Sciences de la Matière
Abstract : A new technique of high-resolution micro-Raman thermometry using anatase TiO2 microparticles (0.5-3 mu m) is presented. These very high spatial resolution measurements (280 nm) reveal temperature gradients even within individual microparticles. Potential applications of this technique are demonstrated by probing the temperature distribution of a micro-fabricated heater consisting of a thin silicon nitride (Si-N) membrane with a gold coil on top of the membrane. Using TiO2 microparticle micro-Raman thermometry, the temperature from the outer edge of the coil to the inner portion was measured to increase by similar to 40 degrees C. These high spatial resolution microscopic measurements were also used to measure the temperature gradient within the 20 mu m wide Si-N between the gold heating coils. 2D numerical simulations of the micro heater temperature distribution are in excellent agreement with the experimental measurements of the temperatures. These measurements illustrate the potential to extend applications of micro-Raman thermometry to obtain temperature details on a sub-micrometer spatial resolution by employing microparticles. (C) 2013 AIP Publishing
Complete list of metadatas

http://hal.in2p3.fr/in2p3-00920378
Contributor : Christine Hadrossek <>
Submitted on : Wednesday, December 18, 2013 - 12:17:50 PM
Last modification on : Wednesday, September 16, 2020 - 5:38:31 PM

Links full text

Identifiers

Collections

Citation

N. Lundt, S. T. Kelly, T. Rodel, B. Remez, A. M. Schwartzberg, et al.. High spatial resolution Raman thermometry analysis of TiO2 microparticles. Review of Scientific Instruments, American Institute of Physics, 2013, 84, pp.104906. ⟨10.1063/1.4824355⟩. ⟨in2p3-00920378⟩

Share

Metrics

Record views

169