Thermoreflectance imaging of laser diodes and VCSELs along and perpendicular to the emission direction

Thermoreflectance profile analysis and multiparameter 3D fitting model applied to the measurement of thermal parameters of thin film materials

“…However, most of the conventional thermal measurement techniques lack the spatial resolution to measure the temperature gradient across a length scale below the micrometer. Because of their nondestructive, noncontact nature and their high spatial resolution [12], thermoreflectance microscopy [13] is one of the most suitable photothermal techniques for the study of thin films. This technique allows us to perform accurate and precise measurements.…”

Transient submicron temperature imaging based on the fluorescence emission in an Er/Yb co-doped glass–ceramic

“…Non-invasive techniques such as thermoreflectance [10][11][12], fluorescent thermometry [13][14][15][16][17], Raman thermometry [18][19][20], optical interferometry [2] and transmission electron microscopy [21] can achieve a submicron spatial resolution. However, most have very specific requirements that make them effective only under limited conditions [7,22,23].…”