Structured Illumination Microscopy for Simultaneous Imaging of Achiral and Chiral Domains

in: Optics Letters (2021)
Zhang, Jiwei; Singh, Ankit Kumar; Huang, Jer-Shing
We propose double structured illumination microscopy (SIM) method, which enables simultaneous imaging of achiral and chiral domains at sub-wavelength resolution. In double SIM, the illumination field is spatially structured both in the intensity and optical chirality so that moiré effects can be concurrently generated on the achiral and chiral fluorescent domains of a sample. This allows for down-modulating the high spatial frequency of both domains at the same time and thus provides subwavelength details after image reconstruction.We introduce the working principle of double SIM and theoretically demonstrate the feasibility of this method using different kinds of synthetic samples.

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