We calculate numerically the optical chiral forces in rectangular cross-section dielectric waveguides for potential enantiomer separation. Our study considers force strength and time needed for separating chiral nanoparticles, mainly via quasi-TE guided modes at short wavelengths (405 nm) and the 90°-phase-shifted combination of quasi-TE and quasi-TM modes at longer wavelengths (1310 nm). Particle tracking simulations show successful enantiomer separation within two seconds. These results suggest the feasibility of enantiomeric separation of nanoparticles displaying sufficient chirality using simple silicon photonic integrated circuits, with wavelength selection based on the nanoparticle size.

中文翻译：

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纵向不变介电光子波导中的手征力

我们对矩形截面介电波导中的光学手性力进行数值计算，以实现潜在的对映体分离。我们的研究考虑了分离手性纳米粒子所需的力强度和时间，主要通过短波长（405 nm）的准TE引导模式以及较长波长（1310 nm）的准TE和准TM模式的90°相移组合。纳米）。粒子跟踪模拟显示对映体在两秒内成功分离。这些结果表明使用简单的硅光子集成电路对显示足够手性的纳米颗粒进行对映体分离的可行性，并根据纳米颗粒尺寸选择波长。