Figure 4

Photoisomerization pattern formation on a photochromic crystal surface by near-field optical excitation. (a) Trajectories of local optical excitations. (b) AFM image of the crystal surface with ‘UY’ drawn. (c) Three-dimensional image.

Photoisomerization pattern formation on a photochromic crystal surface by near-field optical excitation. (a) Trajectories of local optical excitations. (b) AFM image of the crystal surface with ‘UY’ drawn. (c) Three-dimensional image.