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A multi-parameter tunable plasmon modulator
DOI:10.1038/s41598-023-38799-y.png)
Abstract
En 中文
Multi-parameter control of light is a key functionality to modulate optical signals in photonic integrated circuits for various applications. However, the traditional optical modulators can only control one or two properties of light at the same time. Herein, we propose a hybrid structure which can modulate the amplitude, wavelength and phase of surface plasmon polaritons (SPPs) simultaneously to overcome these limitations. The numerical results show that when the Fermi level of graphene changes from 0.3 to 0.9 eV, the variation of optical transmission, wavelength and phase are 32.7 dB, 428 nm and 306 degrees, respectively. The demonstrated structure triggers an approach for the realization of ultracompact modulation and has potential applications in the fields of optical switches, communications and photo-detection.
Keywords:
GRAPHENE
ABSORPTION
RESONANCES
PHOTONICS
TERAHERTZ
AMPLITUDE
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