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Selective Suppression of Stimulated Raman Scattering with Another Competing Stimulated Raman Scattering
2019 FOM KEY WORDS: Vibrational spectroscopy, Raman microscopy, optical imaging, stimulated Raman scattering, coherent Raman scattering. Raman scattering microscopy offering a label-free, chemical-specific contrast mechanism based on the intrinsic vibrations of chemical bonds or groups is limited in spatial resolution by the optical diffraction limit. We ...
RegDate
2020-03-31
Hit
2109
Label-free visualization of cellular uptake and trafficking of nanoparticles by interferometric scattering microscopy
APS 2019 Interferometric scattering (iSCAT) microscopy is a new label-free optical imaging technique, recently developed to identify the nano-sized particles beyond a diffraction limit at a high temporal resolution. Here we report on the direct iSCAT visualization for the moment of cellular uptake of nanoparticles which are diffused in the plasma memb...
RegDate
2020-03-30
Hit
2005
Coherent space-gated microscopy: a step towards deep-tissue phase imaging of biological cells
2019 SPIE Photonics West Conventional imaging scheme, relying on a ballistic wave, is severely compromised when applied to a multiply scattering medium. To mitigate the effect, a typical approach has been to distinguish and reject a multiply scattered wave in a time domain using a time-gating or coherence-gating method. Here, we present a new gating ...
RegDate
2020-03-27
Hit
2153
High-resolution adaptive optical imaging within scattering media using point-illumination based closed-loop accumulation of single scattering microscopy
2019 SPIE Photonics West Optical imaging with diffraction-limited resolution has been a challenging task for targets deep within strongly scattering, inhomogeneous media such as biological tissues. Obtaining high-resolution images through inhomogeneous media is severely hindered not only by the background noise from multiple scattering of light but ...
RegDate
2020-03-27
Hit
1781
Experimental mapping of near-field eigenmodes in sub-wavelength nanostructures
2019 16th Advanced Imaging Methods Workshop(AIM) - Abstract :"Near-field scanning optical microscopy (NSOM) is a useful tool for studying sub-diffraction nanostructures. As the size of nanostructures becomes smaller, the ability to observe and manipulate the near-field is getting more crucial. In ordinary NSOM imaging, the illumination of light source...
RegDate
2020-03-27
Hit
1813
Feedback of time-gated reflection signals for enhancement of light energy delivery to the deeply embedded target
OPJ 2018 In highly scattering medium such as biological environments, the light waves get diffused inboth space and time, and only a little amount of initial light energy can deliver to the targetobject. As a consequence, optical methodologies have been effective only to the shallowlayers, and their effect decreases with depth of the target. Here, we pres...
RegDate
2020-03-27
Hit
1822
Precision Measurement of Circular Polarization States of Light with Rotating Wave-plate Polarimeter
2018 KPS Fall
RegDate
2020-03-27
Hit
1762
Selective Activation DNA-PAINT Imaging with Reductive Caging
2018 KCS 122nd Advances in super-resolution microscopies enable us to observe sub-diffraction-limit organization of biological samples, such as intracellular distribution or structures in cells or tissues. However, super-resolution microscopies have limitations such as photobleaching of fluorescent dyes during prolonged light exposure. DNA-PAINT (Poin...
RegDate
2020-03-27
Hit
1854
Heating Stability Observation of Binary and Quaternary Blend Organic Photovoltaics via In Situ Photoluminescence Spectroscopy
2018 KCS 122nd Organic photovoltaics (OPV) are remarkable solar cell because its processability and competitive price. Performance of OPV is directly related to its power conversion efficiency (PCE), which depends on state of bulk heterojunction in device. Bulk heterojunction of OPV is commonly binary blend (b-OPV), one component is conjugated polyme...
RegDate
2020-03-27
Hit
1986
Raman and Fluorescence Imaging with Polymer Dot for Cell Biology
2018 KCS 122nd Raman scattering is an emerging contrast mechanism for biological imaging due to its narrow spectral bandwidth. However, the sensitivity is many orders of magnitude lower than that of fluorescence. Fluorescence offers extremely high sensitivity, but suffers from broad absorption and emission spectra. Since Raman and fluorescence are com...
RegDate
2020-03-27
Hit
1901
Analytic framework for understanding the competing multiple light scattering processes
ABC 2018 In many complex physical systems, the process of interest often cannot be easily separated from other processes because only the total combined process is accessible. Here, we suggest an analytic framework that predicts how each subprocess responds to the total process when only partial information on subprocesses is provided. Specifically, ...
RegDate
2020-03-27
Hit
1897
Optical imaging featuring both long working distance and high spatial resolution by correcting the aberration of a large aperture lens
ABC 2018 High-resolution optical imaging within thick objects has been a challenging task due to the short working distance of conventional high NA objective lenses. Lenses with a large physical diameter, such as microscope condensers, can feature both a large NA and a long working distance. However, such lenses suffer from strong aberrations. By perf...
RegDate
2020-03-26
Hit
1854
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