Cited by 127Thermography and Photoacoustic TechniquesThermal properties of materialsCalibration and Measurement Techniques

Characterization of the temperature dependence of the thermoreflectance coefficient for conductive thin films

Favaloro, T., Bahk, J.-H., Shakouri, A.·2015·Review of Scientific Instruments

Abstract

We describe a novel approach for calibration of the thermoreflectance coefficient, ideally suited for measurements in a vacuum thermostat, and present the high temperature thermoreflectance coefficients for several metals commonly encountered in electronic devices: gold, platinum, and aluminum. The effect of passivation on these metals is also examined, and we demonstrate the signal to noise ratio of a thermoreflectance measurement can be improved with informed selection of the dielectric layer thickness. Furthermore, the thermo-optic coefficients of the metals are extracted over a wide temperature range. The results presented here can be utilized in the optimization of experimental configurations for high temperature thermoreflectance imaging.

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Crossref · 10.1063/1.4907354

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  • For a Ti:sapphire oscillator centered around 800 nm, an Al thin layer with thickness about 100 nm is a common choice as the transducer layer due to its strong absorption (99% absorption depth <60 nm) and exceptionally large thermoreflectance coefficient dR/dT ~10−4 K−1 at 800 nm.

    “For a Ti:sapphire oscillator centered around 800 nm, an Al thin layer with a thickness of ~100 nm is a common choice as the transducer layer due to its strong absorption (the 99% absorption depth is <60 nm) 104 and an exceptionally large thermoreflectance coefficient d R /d T ~ 10 -4 K -1 at the 800-nm wavelength. 98, 105, 106”

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Authors
Favaloro, T., Bahk, J.-H., & Shakouri, A.
Affiliations
  • University of California, Santa Cruz (US)
  • Purdue University West Lafayette (US)
Venue
Review of Scientific Instruments
Published
2015-02-01
Volume
86
Issue
2
Pages
024903-024903
ISSN
  • 0034-6748 (ISSN-L)
  • 1089-7623
OpenAlex
W2047905832
Cited by
127
References
23
Citations by year
2026: 12 · 2025: 19 · 2024: 16 · 2023: 17 · 2022: 13 · 2021: 11 · 2020: 18 · 2019: 4 · 2018: 6 · 2017: 5 · 2016: 4 · 2015: 2
FWCI
5.30
Type
journal article
Language
en
Open access
closed
Locations
  • Review of Scientific Instruments (publishedVersion)
  • PubMed (publishedVersion)
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
Funders
  • U.S. Department of Energy (DE-SC0001009)
  • Defense Advanced Research Projects Agency (W911NF0810347)
Topics
  • Physical Sciences › Engineering › Mechanics of Materials › Thermography and Photoacoustic Techniques
  • Physical Sciences › Materials Science › Materials Chemistry › Thermal properties of materials
  • Physical Sciences › Engineering › Aerospace Engineering › Calibration and Measurement Techniques
Keywords
temperature dependence, conductive thin films, gold, platinum, aluminum, surface passivation, dielectric thickness, signal-to-noise ratio, thermo-optic coefficient, thin metal films

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