1：Experimental Design and Method Selection:

The study uses a microsphere-assisted bright-field microscope to image label-free transparent dielectric objects. A BaTiO3 glass (BTG) microsphere is coupled with a classical optical microscope for super-resolution imaging.

2：Sample Selection and Data Sources:

Two-dimensional arrays of hexagonally close-packed polystyrene (PS) nanoparticles with diameters of 250, 300, and 400 nm are self-assembled on different substrates (glass slide coated with a Ag film, high reflectance dielectric multilayer, and plain glass slide).

3：List of Experimental Equipment and Materials:

A 30-μm-diameter BTG microsphere (n=1.95), polydimethylsiloxane (PDMS), PS nanoparticles, glass slides coated with Ag film, high reflectance dielectric multilayer, and plain glass slides.

4：95), polydimethylsiloxane (PDMS), PS nanoparticles, glass slides coated with Ag film, high reflectance dielectric multilayer, and plain glass slides. Experimental Procedures and Operational Workflow:

4. Experimental Procedures and Operational Workflow: PS nanoparticle arrays are self-assembled on different substrates. BTG microspheres are dropped onto the PS nanoparticle array surface, and a layer of PDMS is spin-coated on the microspheres. The virtual image magnified by the BTG microsphere is observed through a 100× objective lens and recorded by a CCD camera.

5：Data Analysis Methods:

The modulation of the images is calculated to quantify the image contrast. Reflectance spectra of the samples are measured and simulated using a FDTD method to understand the contributions of different modes in imaging.