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Zhang, Y. (author), Shi, W. (author), Shen, Z. (author), Man, Z. (author), Min, C. (author), Shen, J. (author), Zhu, S. (author), Urbach, H.P. (author), Yuan, X. (author)
Typically, metal particles are difficult to manipulate with conventional optical vortex (OV) tweezers, because of their strong absorption and scattering. However, it has been shown that the vortex field of surface plasmonic polaritons, called plasmonic vortex (PV), is capable of stable trapping and dynamic rotation of metal particles, especially...
journal article 2015
document
Man, Z. (author), Du, L. (author), Min, C. (author), Zhang, Y. (author), Zhang, C. (author), Zhu, S. (author), Urbach, H.P. (author), Yuan, X.C. (author)
Vector beams, which have space-variant state of polarization (SOP) comparing with scalar beams with spatially homogeneous SOP, are used to manipulate surface plasmon polarizations (SPPs). We find that the excitation, orientation, and distribution of the focused SPPs excited in a high numerical aperture microscopic configuration highly depend on...
journal article 2014
document
Zhang, Y. (author), Wu, X. (author), Min, C. (author), Zhu, S. (author), Urbach, H.P. (author), Yuan, X. (author)
Monitoring the cells’ apoptosis progression could provide a valuable insight into the temporal events that initiate cell death as well as the potential for rescue of apoptotic cells. In this paper, we engineered a novel and robust method for monitoring apoptosis of tumor cells based on dynamic laser tweezers, using A549 and HeLa cell line as...
journal article 2014