Cornu‐Spiral‐Like Organic Crystal Waveguide Providing Discriminatory Optical Pathway for Smart Organic Photonic Circuit

Abstract In the era of artificial intelligence, developing advanced and intelligent photonic circuits has become essential. In this work, the fabrication of a smart organic photonic circuit (OPC), is illustrated which utilizes a Cornu‐spiral‐like waveguide (CSW) to produce discriminating optical pathways in the circuit. The mechanical flexibility of Schiff base, ( E )‐1‐(((5‐iodopyridin‐2‐yl)imino)methyl)naphthalen‐2‐ol (IPyIN) facilitates the fabrication of a first‐of‐its‐kind, two‐ring‐based CSW via the atomic force microscopy cantilever tip‐assisted mechanophotonics approach. The photonic studies suggest that the CSW structure routes optical signals in discriminating trajectories. To capitalize on the discriminatory properties of the CSW, two linear waveguides are integrated onto both rings of the CSW to create a smart OPC. This smart OPC can selectively route photons depending on the pathways determined by the CSW to switch it ON or OFF completely depending on partial or complete flow of optical signals in the circuit. Such intelligent photonic circuits are essential for advancing smart technologies.