However, a recent challenge in reproducing this behavior using optical setups different from our own prompted us to revisit this interpretation and to conduct additional experiments and transfer matrix simulations (TMS) to simulate the transmission of light through the optical Fabry Perot (FP) cavity. Unfortunately, the parameters found to modulate the magnitude of the shift in our experiments were also found to do the same in the TMS, revealing that the observed shifts for Reichardt's dye were an optical artifact caused by neglecting reflection when measuring absorbance in transmission mode (eq. 1-3).