Comment on “Deducing radiation pressure on a submerged mirror from the Doppler shift”

In this Comment, we show that the author's conclusion in Phys. Rev. A 85, 023807 (2012) that “the momentum transferred to a submerged mirror upon reflection of a single photon of frequency ${\omega }_0$ could be anywhere in the range from $2\hslash {\omega }_0/nc$ to $2n\hslash {\omega }_0/c$, depending on the phase angle $\psi$ of the mirror's reflection coefficient” is erroneous.

Figure 1

Designation of forward and backward waves in the dielectric slab 2 with $\lambda /4$ antireflection coating 3 and the gap of free space of $d$ width between the rear facet of the dielectric slab and the mirror 1.