Fig. 1: Temperature measurement of the OEK or PS chip.
From: Thermometry of photosensitive and optically induced electrokinetics chips

a Key experimental components used in the thermal imaging experiments. Temperature distribution on b the lower objective and c, d the OEK chip measured by an infrared camera. AC voltage with an amplitude of 20 Vpp and a frequency of 50 kHz was applied to the OEK chip. The OEK chip was illuminated by cyan-color light