Photonic Hook-Assisted Contrast-Enhanced Super-Resolution Imaging Using Janus Microspheres
(2024) IEEE Photonics Technology Letters — Vol. 36, p. 353 (2024)
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- Abstract
- Microsphere-assisted imaging is a promising labelfree super-resolution imaging technique. Its performance is significantly affected by the photonic nanojet (PNJ) of microspheres. Recently, a new type of curved PNJ, i.e. the photonic hook (PH), was discovered, which shows promising potential for various applications. This Letter presented a contrast-enhanced superresolution imaging technique utilizing the PHs generated by Janus microspheres. We demonstrated that the Janus microspheres can be fabricated using a one-step deposition process, they exhibit superior imaging performance to pristine microspheres, and their field-of-view and imaging contrast can be easily adjusted by changing the coating thickness. In addition, we demonstrated that the imaging contrast of Janus microspheres can be further enhanced by using polarized illumination.
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Citations
Xu, C., Ye, R., Zhi, L., Zuo, C., Wang, Z., Melinte, S., Zou, P., & et al. (2024). Photonic Hook-Assisted Contrast-Enhanced Super-Resolution Imaging Using Janus Microspheres. IEEE Photonics Technology Letters, 36, 353. https://hdl.handle.net/2078.5/214369 (Original work published 2024)