Appendix 1—figure 1. Application of photonic force applied to glass rods.

(A) Two glass rods were placed in the experimental chamber and irradiated through a tapered optical fiber for 50 ms. The average of 25 deflections was recorded for each rod. (B) The glass rod with lower stiffness of 128 μN•m^–1 (orange) moved thrice as far as the fiber with a higher stiffness of 350 μN•m^–1 (blue). The estimated power of irradiation falling upon each rod was 20 mW at a wavelength of 561 nm. The sudden movement at the onset of illumination for the rod of lower stiffness likely stemmed from thermoelastic effects.