Optical Coherence Tomography (OCT)

Introduction
Optical Coherence Tomography (OCT) is an imaging technique that is similar in principle to ultrasound, but with superior resolution. It relies on exposing a sample to a burst of light and then measuring the reflective response from different depths and is therefore capable of scanning non-invasively beneath the surface of the sample. In ultrasound imaging, it is relatively easy to measure the time delay of each reflected packet. However, for light pulses, interferometry must be used to measure ....etc

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seminar report on optical coherence tomography


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Quantum Wells, Quantum Wire, and Quantum Dots




I'd like to explore the material known as Wellstone. There are some interesting aspects to this material, and it is written about in Hacking Matter by Will McCarthy. It is not necessarily nanotechnology, so much as it is quantum level materials and bio-molecular control over nano sized or meso-sized particles.
We will return to the world of Nanotechnology and DNA computing shortly, for now - let's talk about Wellstone.

Definit ....etc

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Coherence in text and hypertext


Abstract:

The concept of text coherence was developed for linear text, i.e. text of sequentially
organized content. The present article addresses to what extent this concept
can be applied to hypertext. Following the introduction (section 1), I will define
different aspects of text coherence (section 2). I will then explain the importance
of the sequential order of text constituents for coherence-building, as explored by
empirical studies on text comprehens ....etc

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Optical Coherence Tomography (OCT) is an imaging technique that is similar in principle to ultrasound, but with superior resolution. It relies on exposing a sample to a burst of light and then measuring the reflective response from different depths and is therefore capable of scanning non-invasively beneath the surface of the sample. In ultrasound imaging, it is relatively easy to measure the time delay of each reflected packet. However, for light pulses, interferometry must be used to measure the displacement with meaningful accuracy. The amou ....etc

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Development of Spectral Domain Low Coherence Interferometry for the Measurement of Multilayer Structure

By
Anup Kumar Sharma
(2008JID2939)

Under The guidance of
Dr. D. S. Mehta


Instrument Design & Development Centre
Indian Institute of Technology
Delhi

Contents
Basic principle of Low Coherence Interferometry (LCI).
Low coherent sources
Coherence gating
Fourier Domain Low Coherence Interferometry
Objective
Realization of Spectral Domain LCI using Michelson Interferometer
Work d ....etc

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