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Cost-effective optical coherence tomography spectrometer based on
Cost-effective optical coherence tomography spectrometer based on

... focusing of the beam. Furthermore, the number of components and their long term alignment drives the costs for low maintenance, high resolution instruments. An approach to miniaturize devices and thereby increase their stability is to combine functionalities of different optical components into one, ...
Holographic particle image velocimetry
Holographic particle image velocimetry

Relation between nonlinear refractive index and
Relation between nonlinear refractive index and

... the amount of doping (i.e., by modifying its absorption). Obviously, the interplay between n 2 , k 2 , n 0 , k 0 , and ␹ ( 3 ) is much clearer in the case of strongly absorbing systems (k 0 /n 0 ⬎ 10⫺2 ) such as metals, or systems with resonant nonlinearities. In the case of pure metals, although th ...
Slowdown of light due to exciton-polariton propagation in ZnO
Slowdown of light due to exciton-polariton propagation in ZnO

Superresolution size determination in fluorescence microscopy: A
Superresolution size determination in fluorescence microscopy: A

... tion in the image data file. Distances between such objects down to about 15 nm have been measured with a precision 共95% confidence limit兲 as good as 10 nm using optically ‘‘conventional’’ fluorescence microscopes.19,24 In this article, results from a different far field light microscopical approach ...
Wave Optics
Wave Optics

... For each point in the upper half of the opening, in the direction , there is a point in the lower half that interferes destructively with it. A dark fringe occurs in this direction. Condition for dark fringes: ...
Wave Optics
Wave Optics

... For each point in the upper half of the opening, in the direction , there is a point in the lower half that interferes destructively with it. A dark fringe occurs in this direction. Condition for dark fringes: ...
Novel biosensor for detecting Hemoglobin and its oxidation state
Novel biosensor for detecting Hemoglobin and its oxidation state

Holographic Metalens for Switchable Focusing of Surface Plasmons
Holographic Metalens for Switchable Focusing of Surface Plasmons

... focused Gaussian beam at the focal plane. Implementation and comparison of this analytical model to the experimental results can be seen in Figure 2b,c. The agreement between the data and the analytical model suggests that multiple reflections of SPPs from the nanoslits are not a serious factor in th ...
GPS General Particle Source
GPS General Particle Source

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A Laser Module for 100Gbps Digital Coherent Optical Transmission System

The Pathologist`s Microscope
The Pathologist`s Microscope

Hydrogen Balmer Series High Resolution Spectroscopy : the
Hydrogen Balmer Series High Resolution Spectroscopy : the

... In this laboratory a high resolution Czerny Turner monochromator is used. You will need to understand how a diffraction grating works and how a spectrograph works, before you undertake this experiment. This instrument is a variant of the ordinary reflection grating spectrometer. READ ...
Spectroscopic Imaging using Terahertz Time-Domain Signals
Spectroscopic Imaging using Terahertz Time-Domain Signals

Sheets Mar 2014 - Arab Academy for Science, Technology
Sheets Mar 2014 - Arab Academy for Science, Technology

Visualization of optical deflection and switching operations by a
Visualization of optical deflection and switching operations by a

... power consumption—has resulted in the construction of many novel high-speed photonic devices. Electro-optical beam deflectors are good potential candidates for these applications, and in particular domain-engineered samples of ferroelectric materials, such as lithium niobate (LN), seem to satisfy al ...
Flat optics with designer metasurfaces
Flat optics with designer metasurfaces

Particle dynamics in corrugated rectangular billiard
Particle dynamics in corrugated rectangular billiard

Effect of Macroscopic Structure in Iridescent Color
Effect of Macroscopic Structure in Iridescent Color

... a block is smoothly curved like a saddle. Actually, a transverse cross section is crescentshaped as shown in Fig. 1C. From the optical microscope observation, it is confirmed that the brilliant color owes mostly to the blocks of barbule. Next we have investigated the submicron structure in feathers ...
Optical trapping using cascade conical refraction of light
Optical trapping using cascade conical refraction of light

Strong Dispersive and Nonlinear Optical Properties of
Strong Dispersive and Nonlinear Optical Properties of

... can also be used to construct compact all-optical switches operating with greatly reduced switching thresholds. As with many other optical properties, however, an all-pass resonator enhances nonlinear phase shifts at the cost of imposing a limitation on the bandwidth over which this enhancement take ...
Volume Holographic Recording and Readout for 90
Volume Holographic Recording and Readout for 90

UNIVERSITAT ROVIRA I VIRGILI
UNIVERSITAT ROVIRA I VIRGILI

Structure and optical properties of nanocrystalline hafnium oxide
Structure and optical properties of nanocrystalline hafnium oxide

Ray Model
Ray Model

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Dispersion staining



The optical properties of all liquid and solid materials change as a function of the wavelength of light used to measure them. This change as a function of wavelength is called the dispersion of the optical properties. The graph created by plotting the optical property of interest by the wavelength at which it is measured is called a dispersion curve.The dispersion staining is an analytical technique used in light microscopy that takes advantage of the differences in the dispersion curve of the refractive index of an unknown material relative to a standard material with a known dispersion curve to identify or characterize that unknown material. These differences become manifest as a color when the two dispersion curves intersect for some visible wavelength. This is an optical staining technique and requires no stains or dyes to produce the color. Its primary use today is in the conformation of the presence of asbestos in construction materials but it has many other applications.
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