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Diamond Metasurface‐Based Optical Tweezers With Enhanced Robustness

Advanced Science, EarlyView.
Conventional metasurface optical tweezers are hindered by thermal instability from laser heating. This work overcomes this by using diamond metasurfaces, exploiting their low thermo‐optic coefficient and minimal thermal expansion. The platform demonstrates stable particle trapping, translocation, and rotation, enabling robust miniaturized systems for ...
Jing‐Yuan Zhu, Ke‐Xue Li, Pei‐Nan Ni, Shang‐Heng Li, Si‐Rui Wang, Wen‐Jie Dou, Yong‐Yang Zhu, Zhi‐Peng Wei, Chong‐Xin Shan   +8 more
wiley   +1 more source

Subwavelength imaging with a zero-mass sonic meta-atom. [PDF]

Sci Adv
Devaux T, Bok E, Park JJ, Lee SH, Tomoda M, Matsuda O, Wright OB.   +6 more
europepmc   +1 more source

Structured beam-driven multipolar mode control in nanoparticles. [PDF]

Nanophotonics
Fallah A, Otte E.
europepmc   +1 more source

Miniaturized widefield microscope for high speed in vivo voltage imaging. [PDF]

Biomed Opt Express
Saladrigas CA, Speed F, Teel A, Zohrabi M, Miscles EJ, Futia GL, Baker LV, Zhang Y, Kymissis I, Bright VM, Welle CG, Restrepo D, Gopinath JT, Gibson EA.   +13 more
europepmc   +1 more source

Experimental Evaluation of Different Optical Fibers for Micro-Invasive Soft-Tissue Ablation with a 1064 nm Diode Laser System. [PDF]

Sensors (Basel)
Di Minno D, Trono C, Capineri L, Blundo A, Masotti G.   +4 more
europepmc   +1 more source

Approximate Analytical Approach for Fast Prediction of Microwave Sensor Response: Numerical Analysis and Results. [PDF]

Sensors (Basel)
Cuccaro A, Solimene R, Costanzo S.
europepmc   +1 more source

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High numerical aperture microwave metalens

Optics Letters, 2020
The numerical aperture (NA) of a lens determines its focusing resolution capability and the maximum light collection or emission angle. In this Letter, an ultrathin high NA metalens operating in the microwave band is designed and demonstrated both numerically and experimentally.
Yong-Qiang Liu, Jinhai Sun, Yongxing Che, Kainan Qi, Liangsheng Li, Hongcheng Yin   +5 more
openaire   +2 more sources

High-numerical-aperture effects in photoresist

Applied Optics, 1997
Two-beam and three-beam vector interference in thin photoresist films is used to illustrate the striking differences between s -polarized and p-polarized high-numerical-aperture illumination. Both simulations and experiments are performed for several cases, including undyed photoresist on silicon, dyed photoresist on silicon, and the addition of an ...
D G, Flagello, T D, Milster
openaire   +2 more sources