The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Quantitative digital holographic multi-focus phase contrast microscopy provides various parameters for label-free minimally invasive analysis of living cells. The application for quantification of the impact of drugs and toxins, wound healing assays, tissue density and optical manipulation is demonstrated.
We represent differential interference contrast (DIC) microscopy as a new and simple application for diagnostics of RP. We show the possibility that DIC technique may distinguish the RP disease in vivo.
CARS holography combines the chemical selectivity of CARS with the amplitude and phase imaging capability of holography to establish a novel label-free imaging technique. Here, we review CARS holography and its application to biological imaging.
Optical imaging of sub-micron features requires high resolution and contrast. Using no imaging lenses, we achieve a numerical aperture of 0.92 over a large field-of-view (FOV) of e.g., >20 mm2. In parallel, we significantly enhance image contrast using self-assembled nanolenses, which form catenoids at the nanoscale, enabling sub-100-nm particle and virus detection over a wide FOV.
Video-rate stimulated Raman microscopy with frame-by-frame wavenumber tunability has been developed. This system combined with a spectral analysis method was successfully applied to multicolor, label-free imaging of tissue.
We demonstrate a numerical aperture improvement of ∼3 fold using pixel-super-resolution in lensfree on-chip microscopy. This improvement was confirmed using both a CCD and a CMOS imager chip, empirically pointing to the same space-bandwidth improvement factor, leading to giga-pixel range reconstructed lensfree holographic images.
We demonstrate nanoscale spatial resolution image plane holographic microscopy at extreme ultraviolet wavelengths. We show the advantages of the method for imaging test pattern samples with an absorption contrast of ∼ 30%.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.