Jacopo Antonello,Daniel Burke,Martin J Booth
Jacopo Antonello
Like all methods of super-resolution microscopy, stimulated emission depletion (STED) microscopy can suffer from the effects of aberrations. The most important aspect of a STED microscope is that the depletion focus maintains a minimum, ide...
OCT imaging with temporal dispersion induced intense and short coherence laser source [0.03%]
具有时间色散和高强度短相干光源的OCT成像技术
Suman K Manna,Stephen le Gall,Guoqiang Li
Suman K Manna
Lower coherence length and higher intensity are two indispensable requirements on the light source for high resolution and large penetration depth OCT imaging. While tremendous interest is being paid on engineering various laser sources to ...
Dong Hongzhou,Li Guoqiang,Yang Ruofu et al.
Dong Hongzhou et al.
Based on an array detector, a new heterodyne detection system, which can correct the mismatches of amplitude and phase between signal and local oscillation (LO) beams, is presented in this paper. In the light of the fact that, for a heterod...
Sajid Bashir,Sajjad Tahir,C A MacDonald et al.
Sajid Bashir et al.
Conventional radiographic techniques depend on attenuation, which provides low contrast between soft tissues. However, X rays can accumulate large differential phase delays even in weakly absorbing materials. This can produce significantly ...
Adaptive optimisation of a generalised phase contrast beam shaping system [0.03%]
广义相位对比度光束整形系统的自适应优化
F Kenny,F S Choi,J Glückstad et al.
F Kenny et al.
The generalised phase contrast (GPC) method provides versatile and efficient light shaping for a range of applications. We have implemented a generalised phase contrast system that used two passes on a single spatial light modulator (SLM). ...
A Combined Multiple-SLED Broadband Light Source at 1300 nm for High Resolution Optical Coherence Tomography [0.03%]
一种结合型多SLED宽带光源用于高分辨率光学相干层析成像于1300nm区间
Hui Wang,Michael W Jenkins,Andrew M Rollins
Hui Wang
We demonstrate a compact, inexpensive, and reliable fiber-coupled light source with broad bandwidth and sufficient power at 1300 nm for high resolution optical coherence tomography (OCT) imaging in real-time applications. By combining four ...
Bhargab Das,Chandra S Yelleswarapu,D V G L N Rao
Bhargab Das
We present a robust encryption method for the encoding of 2D/3D objects using digital holography and virtual optics. Using our recently developed dual-plane in-line digital holography technique, two in-line digital holograms are recorded at...
Morphological characterization of cells in concentrated suspensions using multispectral diffuse optical tomography [0.03%]
基于多光谱扩散光学层析成像的浓集悬液中细胞形貌表征
Mohammad Reza Hajihashemi,Xiaoqi Li,Huabei Jiang
Mohammad Reza Hajihashemi
Based on a non-spherical model of particle scattering, we investigate the capabilities and limitations of a T-matrix based inverse algorithm to morphologically characterize cells in concentrated suspensions. Here the cells are modeled as ra...
Parallel-quadrature phase-shifting digital holographic microscopy using polarization beam splitter [0.03%]
采用偏振光束分离器的平行二次相移数字全息显微技术
Bhargab Das,Chandra S Yelleswarapu,Dvgln Rao
Bhargab Das
We present a digital holography microscopy technique based on parallel-quadrature phase-shifting method. Two π/2 phase-shifted holograms are recorded simultaneously using polarization phase-shifting principle, slightly off-axis recording g...
Depth-Encoded Spectral Domain Phase Microscopy for Simultaneous Multi-Site Nanoscale Optical Measurements [0.03%]
深度编码光谱域相位显微镜同步实现多点纳米级光学测量
Hansford C Hendargo,Bradley A Bower,Alex S Reinstein et al.
Hansford C Hendargo et al.
Spectral domain phase microscopy (SDPM) is an extension of spectral domain optical coherence tomography (SDOCT) that exploits the extraordinary phase stability of spectrometer-based systems with common-path geometry to resolve sub-wavelengt...