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Mimicking celestial mechanics in metamaterials ARTICLES *
Mimicking celestial mechanics in metamaterials ARTICLES *

... (Fig. 2c) that has the same dependence on the impact parameter s as that of the Einstein angle for gravitational lensing, but with reversed sign8 . This results in a diverging energy flux at large distances with maximum field intensity observed at ym = (8a|x|)1/2 . As metals are highly dispersive, t ...
Polarization effects and the calibration of a donut beam axial optical
Polarization effects and the calibration of a donut beam axial optical

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Nonconfocal Differential Interferometry Sensing Scheme for

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Changes in spatial extent and peak double optical density of human

... The macular pigment (MP) is a yellow pigment found in the human fovea in both the inner and outer layers of the retina, and located along the axons of the cone photoreceptors [1]. It is mainly composed of two xanthophylls, lutein and zeaxanthin [2]. MP has a peak absorption wavelength at 460 nm but ...
Journal of Applied Science and Agriculture
Journal of Applied Science and Agriculture

... Δz = ...
Brightfield Contrasting Techniques
Brightfield Contrasting Techniques

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Superior Pointing Stability Simplifies MPE Imaging
Superior Pointing Stability Simplifies MPE Imaging

Laser radiation versus “ordinary light”
Laser radiation versus “ordinary light”

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09Optics

... – Redder light is spaced more widely than blue light. – White light: bright white at central max (m=0) • THEN DISPERSION; SPECTROSCOPIC APPLICATIONS ...
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VII-I

... has therefore also wave properties. They are detectable, however, only for very small p. ...
The goals of this chapter are to understand
The goals of this chapter are to understand

Amorphous to Tetragonal Zirconia
Amorphous to Tetragonal Zirconia

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Harnessing a Quantum Design Approach for Making Low

Chapter 22: Reflection and Refraction of Light
Chapter 22: Reflection and Refraction of Light

... pattern, the heavy string is connected to it and vibrates up and down every time the light string does. That vibrating up and down rate is the frequency. ...
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Improving fluorescence detection in lab on chip devices

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Skowrons Waugh Choose Ohio First poster

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... When natural light entering to the microscope passes through polarizer it becomes polarized E-W direction. If there is a colourless isotropic substance on the stage, ie, air, liquid, glass, or a mineral with only one RI, and if analyser is out, the E-W vibrating plane polarized white light from the ...
Optics and interferometry with Na 2 molecules
Optics and interferometry with Na 2 molecules

................................................................. Wave–particle duality of C molecules
................................................................. Wave–particle duality of C molecules

... In addition, hot C60 has been observed19 to emit continuous blackbody radiation, in agreement with Planck’s law, with a measured integrated emissivity of e < 4:5 ð 6 2:0Þ 3 10 2 5 (ref. 18). For a typical value of T < 900 K, the average energy emitted during the time of flight can then be estimated ...
MINIATURIZED FLUORESCENCE EXCITATION PLATFORM WITH OPTICAL FIBER FOR BIO-DETECTION CHIPS
MINIATURIZED FLUORESCENCE EXCITATION PLATFORM WITH OPTICAL FIBER FOR BIO-DETECTION CHIPS

... packaging methods, many bio-detection systems are able to realize “lab on a chip”. Lab on a chip provides some advantages on bio-experiments such as simple, fast multiprocessing and high accuracy [1]. There are many biodetection systems are widely studied such as electrochemical method, refractive m ...
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Synopsis by TAYABALY Kashmira

... Fewer coating materials are available in UV than in IR system and even fewer for wavelengths under 250 nm. In this range only band pass filters are feasible but they are difficult and expensive to make. Indeed, because the temperature at which the coating is applied is high, it generates mechanical ...
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... I can explain that chromatography can be used to separate and identify the components in a mixture and that types of chromatography include thin-layer chromatography (TLC), in which a plate is coated with a solid and a solvent moves up the plate, column chromatography (CC), in which a column is pack ...
What Light Do Plants Need? (EconoLux Publication)
What Light Do Plants Need? (EconoLux Publication)

... or the McCree curve, (as closely as possible) as any excess light produced, or light produced outside of the PAR or McCree curve spectrum, is simply wasted light. The ‘wasted’ light represents energy being used producing that light, which the plants don’t need, thereby reducing the overall efficienc ...
Quasi Light Fields: A Model of Coherent Image Formation
Quasi Light Fields: A Model of Coherent Image Formation

... the mathematics of quantum physics to generate a class of coherent light fields [10]. We express these quasi light fields as filtered Wigner distributions, which are known in the signal processing community as shift-invariant bilinear forms of U and U ∗ , comprising the quadratic class of time-frequ ...
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Ultraviolet–visible spectroscopy



Ultraviolet–visible spectroscopy or ultraviolet-visible spectrophotometry (UV-Vis or UV/Vis) refers to absorption spectroscopy or reflectance spectroscopy in the ultraviolet-visible spectral region. This means it uses light in the visible and adjacent (near-UV and near-infrared [NIR]) ranges. The absorption or reflectance in the visible range directly affects the perceived color of the chemicals involved. In this region of the electromagnetic spectrum, molecules undergo electronic transitions. This technique is complementary to fluorescence spectroscopy, in that fluorescence deals with transitions from the excited state to the ground state, while absorption measures transitions from the ground state to the excited state.
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