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Abstract Highly reproducible manufacturing of organic optical crystals with well‐defined geometry and dimension is important to realize industrially relevant all‐organic microelectronic and nanophotonic components and photonic integrated circuits. Here, programmed shape and size alteration of square‐shaped perylene crystal resonators into circular disk and rectangular geometries is demonstrated using the focused‐ion‐beam milling technique. The fabricated smaller sized circular disk and rectangular crystal resonators display shape‐ and size‐dependent optical modes. Due to generality and high reproducibility, this processing technique can be also extended to other organic crystals to create optical components suitable for commercial nanophotonic device applications.
Pradeep et al. (2022) studied this question.