Passive Parity-Time Grating

Nowadays, many quantum-mechanical effects can be demonstrated with equivalent optical systems. As an example, a passive parity-time (PT) grating with separate modulation of the real and imaginary parts of the refractive index has been used to study the non-Hermitian parity-time symmetry. We construct such a passive PT grating in VirtualLab Fusion and analyze it with the Fourier modal method (FMM, also known as RCWA) to show its asymmetric diffraction property.

Passive Parity-Time Symmetry Grating

We construct a passive parity-time grating and analyze its diffraction properties with respect to selected grating parameters and the polarization of light.

Grating Order Analyzer

In VirtualLab Fusion, the Grating Order Analyzer can be used for convenient grating diffraction analysis, with results presented in various ways.

Download free trial version

Download free trial version