Results 51 to 60 of about 25,876 (202)
Maskless imaging of dense samples using pixel super-resolution based multi-height lensfree on-chip microscopy. [PDF]
, 2012 Lensfree in-line holographic microscopy offers sub-micron resolution over a large field-of-view (e.g., ~24 mm2) with a cost-effective and compact design suitable for field use. However, it is limited to relatively low-density samples.
Greenbaum, Alon, Ozcan, Aydogan
core +1 more source
Pixelated Laser with Tailored Emission Spectrum Photopatterned by Digital Holographic Microscopy
Advanced Optical Materials, EarlyView.Azobenzene‐based surface‐relief gratings inscribed via DHM‐integrated holographic lithography enable programmable pixelated DFB laser architectures. This approach allows independent control of grating parameters across a 2D array, enabling spatially tailored emission spectra.
Sudharsana Bhashyam Pillailokam +2 more
wiley +1 more source
, 2009 This paper describes an imaging microscopic technique based on heterodyne digital holography where subwavelength-sized gold colloids can be imaged in cell environment.
Absil +34 more
core +1 more source
Advanced Science, EarlyView.This work demonstrates a receiver‐transmitter‐integrated metasurface that decomposes an incident wave into orthogonal components and routes them into separate channels. Inspired by a “Wheel‐of‐Fortune” mechanism, it enables independent control over the amplitude, phase, and polarization of the transmitted wave.
Tong Liu +8 more
wiley +1 more source
Single to multiple digital holograms for phase compensation and defect detection
Frontiers in PhotonicsDigital holography enables quantitative phase imaging based on interference. A digital hologram often encodes the phase information along with aberrations or deformations.
Zhenkai Chen +5 more
doaj +1 more source
Optical imaging techniques in microfluidics and their applications [PDF]
, 2012 Microfluidic devices have undergone rapid development in recent years and provide a lab-on-a-chip solution for many biomedical and chemical applications.
Lee, Lap Man, Wu, Jigang, Zheng, Guoan
core +1 more source
Wavefront Line‐Scan Imaging Via a Single‐Pixel Detector
Advanced Science, EarlyView.We propose and demonstrate a wavefront line‐scan imaging paradigm that integrates 1D spatial light modulation with single‐pixel detection. Benefiting from 1D modulation, not only is the imaging speed improved, but also the storage of modulation patterns is reduced by several orders of magnitude.
Nuo Liu +4 more
wiley +1 more source
Laser Doppler holographic microscopy in transmission: application to fish embryo imaging [PDF]
, 2014 We have extended Laser Doppler holographic microscopy to transmission geometry. The technique is validated with living fish embryos imaged by a modified upright bio-microcope.
Alexandre, Daniel +2 more
core +3 more sources
Depth-filtered digital holography
Optics Express, 2012 We introduce depth-filtered digital holography (DFDH) as a method for quantitative tomographic phase imaging of buried layers in multilayer samples. The procedure is based on the acquisition of multiple holograms for different wavelengths. Analyzing the intensity over wavelength pixel wise and using an inverse Fourier transform leads to a depth-profile
Nektarios, Koukourakis +7 more
openaire +2 more sources
A General and Efficient Framework for the Rapid Design of Miniaturized, Wideband, and High‐Bit RIS
Advanced Electronic Materials, EarlyView.A general and efficient framework is proposed for the rapid design of high‐performance reconfigurable intelligent surfaces (RISs). This framework integrates advanced antenna design techniques and incorporates various load types, quantities, and values to achieve the design of high‐performance RISs.
Jun Wei Zhang +14 more
wiley +1 more source