Metal-Insulator-Metal (MIM) nano-/micro-structure metasurfaces have been utilized as highly efficient light-absorbing materials, i.e., as a new platform for photo-thermal energy conversion . In particular, this new method to engineer materials is attracting attention to realise radiative cooling, radiation sources and detectors at the mid-infrared (m-IR) wavelengths range. Metals such as gold, silver, copper, and aluminum have been used for engineering metasurfaces and for conventional nanofabricaiton of single-particle plasmon resonance nano-particles. However, these materials have a considerably large time constant of free electron oscillation, i.e. the resonance between the metal-base plate of MIM and nano-/micro-structures persists for a long time. As a result, there is low reflection, but also a non-negligible component of re-radiated power as scattering. This cause a deviation from the Kirchhoff's law, resulting in decrease of the photothermal conversion efficiency, i.e., light-to-absorbed energy conversion. By increasing the thickness of Cr film (base in MIM) from 5 nm to 50 nm, the absorption loss due to Cr is moderately increased, resulting in a non-reflective and high-absorptive state of metasurface .