We improve the precision of the interferometric weak-value-based beam deflection measurement by introducing a power recycling mirror, creating a resonant cavity. This results in all the light exiting to the detector with a large deflection, thus eliminating the inefficiency of the rare postselection. The signal-to-noise ratio of the deflection is itself magnified by the weak value. We discuss ways to realize this proposal, using a transverse beam filter and different cavity designs.
Lyons, K., Dressel, J., Jordan, A.N., Howell, J.C., Kwiat, P.G., 2015. Power-Recycled Weak-Value-Based Metrology. Physical Review Letters 114, 170801. doi:10.1103/PhysRevLett.114.170801
American Physical Society