David G. Cahill |
Willett Professor and Head
Analysis of modulated time-domain thermoreflectance v2.6.2, posted October 8, 2008
MATLAB scripts for analysis of TDTR data posted September 12, 2012
MATLAB scripts for analysis of TDTR data G. Hohensee, posted September 25, 2014
MATLAB scripts for analysis of TDTR data G. Hohensee, version H3, February 27, 2015
MATLAB scripts for analysis of TDTR data, J. Kimling, January 9, 2017; corrected 1D approximation in earlier versions of bidirectional models; includes temperature measurement at locations other than the heat source and depth dependence of optical absorption; v2 corrects errors in the v1 code from November 2016.
LabVIEW automation for time-domain thermoreflectance, posted Jan. 2, 2008
LabVIEW automation for TDTR, posted April 18, 2012
Analysis of 3ω data for arbitrary multilayer geometry, posted Jan. 5, 2009
MATLAB scripts for modeling velocities of surface acoustic waves, Dongyao Li, December 2016
Thermal conductivity data
The files are two columns of ASCII data;
the two columns are the temperature in degrees Kelvin and the thermal conductivity in
W cm−1 K−1.
- Bulk materials
- Homogeneous thin films
- epitaxial Si0.85Ge0.15 alloy, 1.1 microns thick
- amorphous diamond, filtered-arc deposition, 475 nm thick
- diamond-like amorphous carbon, plasma-assisted CVD, 313 nm thick
- soft amorphous carbon, remote-plasma CVD, 325 nm thick
- SiNx, atmospheric pressure CVD, 180 nm thick
- SiNx, plasma CVD, 500 nm thick
- SiC, plasma CVD, 250 nm thick
- Dow Corning FOx, 285 nm thick
- Dow Corning XLK, 500 nm thick
- amorphous Al2O3, ion-beam sputtered, 0.95 μm thick
- κ−Al2O3, CVD, 13 μm thick
- α−Al2O3, CVD, 13 μm thick
- Multilayer thin films
Useful data for analyzing TDTR experiments
- Temperature dependence of volumetric heat capacity
- Temperature dependence of thermal conductivity
- rms laser spot sizes measured by spatial correlation of pump and probe. The spatial correlation of the pump and probe increases by 10% from the beginning to end of the delay line for TDTR-II.
For TDTR-I (May 22, 2015)
For TDTR-II (March 20, 2015)
- 5x objective, 10.6 μm
- 10X objective, 5.3 μm
- 20X objective, 2.7 μm
- 5x objective, 10.7 μm
- 10X objective, 5.5 μm
- 20X objective, 2.7 μm
- 50X objective, 1.1 μm
- Optical power calibration is 1.08 times the reading of the model 835 power meter.
- Transmission coefficients of the objectives at 785 nm are 0.87, 0.90, 0.80, 0.70 for 2×, 5×, 10×, and 20×, respectively.
- Steady-state heating for substrate thermal conductivity of 1 W/m-K for absorbed laser power of 1 mW is 11, 27, 60, 110 K, respectively.
File translated from
On 09 Jan 2017, 09:55.