In contrast to current efforts to quantify the radiation pressure of light using nano-micromechanical resonators in cryogenic conditions, we proposed and experimentally demonstrated the radiation pressure measurement in ambient conditions by utilizing a macroscopic mechanical longitudinal oscillator with an effective mass of the order of 20 g. The light pressure on a mirror attached to the oscillator was recorded in a Michelson interferometer and results showed, within the experimental accuracy of 3.9%, a good agreement with the harmonic oscillator model without free parameters.
Bibliographical noteFunding Information:
This work has been funded by European Union’s Horizon 2020 Marie Skłodowska-Curie Actions (MSCA) individual fellowship DynaLight under Contract No. 846218 and the National Research Foundation of Korea (NRF) grant by the Korea government (MSIT) under Contract No. 2019R1A2C2011293.
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