Microring Plasmonic Circuit Characteristics Using Space–Time Modulation Control

The biased plasmonic circuit is proposed using a Panda-ring infinitesimal space–time function control. The circuit has two small rings alongside the main microring. The small rings act as phase modulators inducing the nonlinearity effect in the circuit. The gold grating at the center microring induces plasmonic polaritons resulting in plasmonic wave oscillations and the Bragg wavelength (plasma frequency). By using the suitable parameters, the whispering gallery mode (WGM) is formed at the center ring, where the small change of light optical path difference is compensated and resonant. The coupling side ring radii $${R}_{L}$$ - $${R}_{R}$$ → 0 is generated, where the unified space–time function is obtained. The saturation uncertainty space–time function known as a singularity is formed, which can be applied for fully biased plasmonic circuit characteristics. The circuit is fed by the input light with 1.50 µm center wavelength, where the input power varied from 1 to 10 mW. The bright soliton with a wavelength of 1.50 µm can move both back and forward (biased) on the time axis by the three different modulated Gaussian pulses of 0.60 µm, 1.10 µm, and 1.30 µm, where the full biased of the 1st space to the 2nd various spaces in terms of wavelengths is achieved.