Photonic Hooks (PHs) are non-evanescent light beams with a highly concentrated curved optical field. Since their discovery, PHs always have one single inflection point and thus have a hook-like structure. In this work, a new type of PHs with two inflection points and S-shaped structures were reported for the first time. We theoretically studied the effects of various physical parameters on the generation of S-shaped Photonic Hook (S-PH). The S-PH may have potential applications in super-resolution imaging, subwavelength micromachining, particle and cell manipulation, etc.
Microsphere-assisted imaging is a label-free super-resolution optical microscopic technique. In 2021, Shang et al. found that by coating microspheres with Ag films, the super-resolution imaging performance of microspheres can be significantly enhanced. Here we reported the progress of using patchy particles for super-resolution imaging, and we showed that the performance of the imaging system can also be enhanced by coating microspheres with Al films. Using Al instead of Ag can significantly reduce the cost of fabrication, and facilitates the commercialization of this technique.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.