Provided herein are a system and a method thereof which allows for calibrating a laser or getting characteristics of the laser by measuring the temporally and spatially resolved beam profile and power density cross-section using non-contact radiometry. An example method includes receiving a radiation beam from a light source by protrusions that protrude from a plate. The example method further includes imaging the protrusions, measuring a respective temperature of each of the protrusions based on the imaging, and profiling the radiation beam based on the measuring.