Results 31 to 40 of about 150,220 (302)

Optical coherence tomography- a non-invasive technique applied to conservation of paintings [PDF]

, 2005
It is current practice to take tiny samples from a painting to mount and examine in cross-section under a microscope. However, since conservation practice and ethics limit sampling to a minimum and to areas along cracks and edges of paintings, which are ...
Dobre, George, Kudimov, B, Cucu, R., David Saunders, Haida Liang, Saunders, D., Pezzati L., Podoleanu, Adrian G.H., Marta Gomez Cid, Liang, H, Boris Kudimov, Saunders, D, John Cupitt, Pedro, J., George Dobre, Justin Pedro, Cid, MG, Kudimov, B., Liang, H., Podoleanu, AG, Adrian Podoleanu, Cucu, RG, Radu Cucu, Salimbeni R., Cid, M.G., Cupitt, J., Dobre, GM, Cupitt, J, Pedro, J   +28 more
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Optical coherence tomography and optical coherence tomography angiography in uveitis: A review [PDF]

Clinical & Experimental Ophthalmology, 2019
Optical coherence tomography (OCT) has dramatically changed the understanding and management of uveitis and other ocular conditions. Currently, OCT angiography (OCTA) combines structural information with the visualization of blood flow within the imaged area.
Alessandro Invernizzi, Mariano Cozzi, Giovanni Staurenghi   +2 more
openaire   +2 more sources

Arterial macroaneurysm of the optic disc

American Journal of Ophthalmology Case Reports, 2018
Purpose: We present fundus and spectral domain optical coherence tomography findings of a patient with an arterial macroaneurysm of the optic disc. Observations: An 87-year-old woman presented with blurry vision and was found to have a retinal arterial ...
Cem Ozgonul, Cagri Giray Besirli
doaj   +1 more source

Idiopathic Epiretinal Membrane: Microvasculature Analysis with Optical Coherence Tomography and Optical Coherence Tomography Angiography

Tomography, 2022
Background: The present study examined the relationships among macular microvasculature, retinal structure, and epiretinal membrane (ERM) and explored the utility of optical coherence tomography (OCT) angiography (OCTA) in idiopathic ERM assessment ...
Klaudia Ulfik-Dembska, Sławomir Teper, Michał Dembski, Anna Nowińska, Edward Wylęgała   +4 more
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Optical coherence tomography [PDF]

The British Journal of Radiology, 2005
SummaryThe review provides a concise explanation of principles of operation of different optical coherence tomography methods. A comparative analysis of their advantages and disadvantages is presented in relation to specific applications. The review will assist the reader in making an educated choice on the most suitable optical coherence tomography ...
openaire   +4 more sources

Optical computing for optical coherence tomography [PDF]

Scientific Reports, 2016
AbstractWe propose an all-optical Fourier transformation system for real-time massive data processing in high speed optical coherence tomography (OCT). In the so-called optical computing OCT, fast Fourier transformation (FFT) of A-scan signal is optically processed in real time before being detected by photoelectric detector.
Xiao Zhang, Tiancheng Huo, Chengming Wang, Wenchao Liao, Tianyuan Chen, Shengnan Ai, Wenxin Zhang, J Hsieh, Ping Xue   +8 more
openaire   +2 more sources

Cross-Polarized Optical Coherence Tomography System with Unpolarized Light

Photonics, 2022
Cross-polarized optical coherence tomography offers improved contrast for samples which can alter the polarization of light when it interacts with the sample. This property has been utilized to screen pathological conditions in several organs.
Georg R. Hartl, Asha Parmar, Gargi Sharma, Kanwarpal Singh   +3 more
doaj   +1 more source

Swept source optical coherence tomography Gabor fusion splicing technique for microscopy of thick samples using a deformable mirror [PDF]

, 2015
We present a swept source optical coherence tomography (OCT) system at 1060 nm equipped with a wavefront sensor at 830 nm and a deformable mirror in a closed-loop adaptive optics (AO) system.
Adrian Bradu, John Rogers, Bradu, Adrian, Costa, C., Rogers, J., Christopher Costa, Pauline Phelan, Podoleanu, Adrian G.H., Phelan, P., Adrian Podoleanu   +9 more
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Optical coherence tomography in dermatology [PDF]

Journal of Biomedical Optics, 2013
Optical coherence tomography (OCT) is a noninvasive diagnostic method that offers a view into the superficial layers of the skin in vivo in real-time. An infrared broadband light source allows the investigation of skin architecture and changes up to a depth of 1 to 2 mm with a resolution between 15 and 3 μm, depending on the system used.
Sattler, Elke, Kästle, Raphaela, Welzel, Julia   +2 more
openaire   +4 more sources

Optical tomography dynamics induced by qubit-resonator interaction under intrinsic decoherence

Scientific Reports, 2022
A superconducting circuit with a qubit and a resonator coupled via a two-photon interaction is considered. When the resonator is initially in a superposition of coherent states, optical tomography and quantum coherence dynamics are examined in the ...
A. -B. A. Mohamed, H. Eleuch
doaj   +1 more source