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. 2019 Feb 21;7:69. doi: 10.3389/fchem.2019.00069

Figure 7.

Figure 7

Protein-based soft photonics. (a) All-protein optical waveguides, (b) protein whispering gallery mode microresonator arrays on flexible substrates, (c,d) high quality factor for protein resonators, with stable performance under bending deformation, (e,f) SRT-based add-drop filter, (g–i) SRT-based optical on/off switch. Reproduced with permission (Yilmaz et al., 2017). Copyright 2017 American Chemical Society.