2 citations · 4 across the 3 of their papers we have counts for
3 papers
physics.optics2023★ 1 cited
On-chip light-scattering enhancement enables high performance single-particle tracking under conventional bright-field microscope
Pengcheng Zhang, Tingting Zhan, Guoqiang Gu +4
Scattering-based single-particle tracking (S-SPT) has opened new avenues for highly sensitive label-free detection and characterization of nanoscopic objects, making it particularl…
physics.optics2021★ 2 cited
Confining photonic nanojet in a microwell on microsphere lens for highly efficient light focusing, signal amplification and quantitative detection
Pengcheng Zhang, Bing Yan, Guoqiang Gu +4
Dielectric microspheres or microbeads can squeeze light into the subwavelength scale via photonic nanojet (PNJ) focusing. This enables strong light-matter interactions within its f…
physics.optics2020★ 1 cited
Inflection Point: A New Perspective on Photonic Nanojets
Guoqiang Gu, Pengcheng Zhang, Sihui Chen +2
When light propagates through the edge or middle part of microparticle's incoming interface, there is a basic rule that light converges and diverges rapidly or slowly at the output…