Quantitative imaging of red blood cell velocity invivo using optical coherence Doppler tomography [0.03%]
基于光学相干多普勒断层扫描的体内红细胞速度定量光学成像技术
Hugang Ren,Congwu Du,Kicheon Park et al.
Hugang Ren et al.
We present particle counting ultrahigh-resolution optical Doppler tomography (pc-μODT) that enables accurate imaging of red blood cell velocities (ν(RBC)) of cerebrovascular networks by detecting the Doppler phase transients induced by th...
Chenhui Li,Hongrui Jiang
Chenhui Li
We demonstrate a flexible, electrowetting-driven, variable-focus liquid microlens. The microlens is fabricated using a soft polymer polydimethylsiloxane. The lens can be smoothly wrapped onto a curved surface. A low-temperature fabrication ...
High-resolution imaging in a deep turbid medium based on an ultrasound-switchable fluorescence technique [0.03%]
基于超声波可切换荧光技术的浑浊介质深处高分辨成像研究
Baohong Yuan,Seiichi Uchiyama,Yuan Liu et al.
Baohong Yuan et al.
The spatial resolution of fluorescence imaging techniques in deep optically turbid media such as tissues is limited by photon diffusion. To break the diffusion limit and achieve high-resolution and deep-tissue fluorescence imaging, a fundam...
Spectral encoding of spatial frequency approach for characterization of nanoscale structures [0.03%]
基于频谱编码的纳米结构空间频率表征方法研究进展
Sergey A Alexandrov,Shikhar Uttam,Rajan K Bista et al.
Sergey A Alexandrov et al.
An approach to acquire axial structural information at nanoscale is demonstrated. It is based on spectral encoding of spatial frequency principle to reconstruct the structural information about the axial profile of the three-dimensional (3D...
Characterization of piezoelectric ceramics and 1-3 composites for high power transducers [0.03%]
用于高功率换能器的压电陶瓷及1-3型复合材料特性分析
Hyeong Jae Lee,Shujun Zhang,Richard J Meyer Jr et al.
Hyeong Jae Lee et al.
The high power characteristics of various piezoelectric ceramics and 1-3 composites were investigated. In contrast to "hard" Pb(Zr,Ti)O(3), modified (Bi(0.5)Na(0.5))TiO(3) based ceramics were found to show a relatively linear electromechani...
Hyungsuk Lee,Yongdae Shin,Sun Taek Kim et al.
Hyungsuk Lee et al.
We demonstrate a stochastic based method for performing active rheology using optical tweezers. By monitoring the displacement of an embedded particle in response to stochastic optical forces, a rapid estimate of the frequency dependent she...
Focused high frequency needle transducer for ultrasonic imaging and trapping [0.03%]
用于超声成像和捕获的高频率针换能器
Hsiu-Sheng Hsu,Fan Zheng,Ying Li et al.
Hsiu-Sheng Hsu et al.
A miniature focused needle transducer (
Pure low-frequency flexural mode of [011](c) poled relaxor-PbTiO(3) single crystals excited by k(32) mode [0.03%]
沿[011]畴区极化的PMN-PT单晶中由k32模激发的纯低频弯曲模式
Gang Liu,Wenhua Jiang,Jiaqi Zhu et al.
Gang Liu et al.
Rhombohedral phase relaxor-PbTiO(3) solid solution single crystals poled along [011](c) exhibits superior lateral extensional piezoelectric response, which enables the excitation of a pure low frequency flexural mode with a bridge-type elec...
Aaron T Kuan,Jene A Golovchenko
Aaron T Kuan
Recent work on protein nanopores indicates that single molecule characterization (including DNA sequencing) is possible when the length of the nanopore constriction is about a nanometer. Solid-state nanopores offer advantages in stability a...
Guided-mode-resonance-coupled plasmonic-active SiO(2) nanotubes for surface enhanced Raman spectroscopy [0.03%]
用于表面增强拉曼光谱的等离激元活性硅 dioxide 纳米管
Xiaobin Xu,Dihan Hasan,Lei Wang et al.
Xiaobin Xu et al.
We demonstrate a surface enhanced Raman scattering (SERS) substrate by integrating plasmonic-active SiO(2) nanotubes into Si(3)N(4) gratings. First, the dielectric grating that is working under guided mode resonance (GMR) provides enhanced ...