Crossing a Critical Threshold (IMAGE)

Lehigh University

Crossing a Critical Threshold

Caption

A polarized light field microscope image shows crystal junctions written inside glass with a femtosecond laser. Upon divergence (a), independent lattice orientations develop in each branch and are retained (b) as the branches merge back into a single line. The color wheel indicates the angle of the fast or slow axis of birefringence.

Credit

Lehigh University

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