Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Xiujie Dou"'
Autor:
Yuquan Zhang, Changjun Min, Xiujie Dou, Xianyou Wang, Hendrik Paul Urbach, Michael G. Somekh, Xiaocong Yuan
Publikováno v:
Light: Science & Applications, Vol 10, Iss 1, Pp 1-41 (2021)
Optical manipulation: plasmonic tweezers Plasmonic tweezers exploit sub-wavelength confinement of light to allow trapping and manipulation of small particles with far greater precision than usual. Yuquan Zhang and coworkers from Shenzhen University i
Externí odkaz:
https://doaj.org/article/1aa58a1c66e24bf98950112d70b090f5
Autor:
Xianyou Wang, Xiaocong Yuan, Xiujie Dou, H. P. Urbach, Michael G. Somekh, Changjun Min, Yuquan Zhang
Publikováno v:
Light: Science & Applications, Vol 10, Iss 1, Pp 1-41 (2021)
Light, Science & Applications
Light, Science & Applications
Optical tweezers and associated manipulation tools in the far field have had a major impact on scientific and engineering research by offering precise manipulation of small objects. More recently, the possibility of performing manipulation with surfa
Publikováno v:
Optics Express, 28(14)
Improving the image quality of small particles is a classic problem and especially challenging when the distance between particles are below the optical diffraction limit. We propose a imaging system illuminated with radially polarized light combined
Autor:
Peiwen Meng, Xiaocong Yuan, Changjun Min, H. Paul Urbach, Yuquan Zhang, Silvania F. Pereira, Xiujie Dou
Publikováno v:
Measurement Science and Technology, 32(8)
The sidewall angle (SWA) of a nanostructure exerts influence on the performance of the nanostructure and plays an important role in processing nano-structural chips. It is still a great challenge to determine steep SWAs from far field measurements es
Autor:
Xiujie Dou, Jiao Lin, Aiping Yang, Fanfei Meng, Chonglei Zhang, Xiaocong Yuan, Changjun Min, Luping Du
Publikováno v:
Plasmonics. 13:991-996
Gap mode surface-enhanced Raman spectroscopy (SERS) enables high enhancement of Raman signal. However, the polarization of excitation light shows great influence on the excitation of gap mode and hence on the Raman enhancement. Here, we propose a nan
Publikováno v:
Chinese Optics Letters. 15:030007-30010
Femtosecond (fs) cylindrical vector beams (CVBs) have found use in many applications in recent years. However, the existing rigid generation methods seriously limit its development. Here, we propose a flexible method for generating fs-CVBs with arbit
Publikováno v:
Optics Communications. 458:124790
Nonzero transverse spin density, which describes phenomenon in which the electromagnetic fields of localized light spin in a plane containing its wavenumber vector, has gained enormous interest recently because of its useful applications like spin-di
Autor:
Siwei Zhu, Changjun Min, Jun Liu, Xiujie Dou, Junfeng Shen, Yuquan Zhang, Zhenwei Xie, Xiaocong Yuan, Ting Lei
Publikováno v:
Nanoscale. 9(30)
Intense electric fields at the nanoscale are essential for single molecule surface-enhanced Raman scattering (SERS) detection. Such fields can be achieved in plasmonic nano-gaps between nanoparticles and metal films through hybridization of surface p
Publikováno v:
Optics Letters, 44(2)
We show that elongating a tightly focused field in the direction perpendicular to the optical axis is possible. We demonstrate our approach by specially shaping the Pancharatnam–Berry (PB) phase. Moreover, the analytical formulae required to calcul
Autor:
Xiujie Dou, Luping Du, Xiaocong Yuan, Yuquan Zhang, Yu-Jia Zeng, Junfeng Shen, Lichao Zhang, Zhenwei Xie, Changjun Min
Publikováno v:
Nanoscale. 8(18)
In general, when a semiconductor nanowire is trapped by conventional laser beam tweezers, it tends to be aligned with the trapping beam axis rather than confined in the horizontal plane, and this limits the application of these nanowires in many in-p