
Introduction: When waves encounter obstacles (or openings), they
... The local lengths of both depend on the wavelength, λ and hence suffer from chromatic aberration. The chromatic aberration in a zone plate is much more severe than in a convex lens. A zone plate acts simultaneously as a convex lens and as a concave lens. In addition to a real image, a virtual image ...
... The local lengths of both depend on the wavelength, λ and hence suffer from chromatic aberration. The chromatic aberration in a zone plate is much more severe than in a convex lens. A zone plate acts simultaneously as a convex lens and as a concave lens. In addition to a real image, a virtual image ...
9.2. Summary - Stanford Synchrotron Radiation Lightsource
... a problem (the specification of beam "wander" in the LCLS design study report is ~10% of the beam diameter, i.e. independent of path length). The angular acceptance for SASE saturation through the undulator is of the same order as the beam divergence, so any beam angle excursions larger than this va ...
... a problem (the specification of beam "wander" in the LCLS design study report is ~10% of the beam diameter, i.e. independent of path length). The angular acceptance for SASE saturation through the undulator is of the same order as the beam divergence, so any beam angle excursions larger than this va ...
Atom lithography - Quantum technologies
... since the laser interaction is effective only in the vicinity of atomic resonance lines. Laser cooling is an essential preparation technique for atom optics and thus for atom lithography. It has been demonstrated to work with all alkali atoms, alkaline earths, metastable rare gases, and elements of ...
... since the laser interaction is effective only in the vicinity of atomic resonance lines. Laser cooling is an essential preparation technique for atom optics and thus for atom lithography. It has been demonstrated to work with all alkali atoms, alkaline earths, metastable rare gases, and elements of ...
Variability in ultraviolet total optical depth during the Southern
... 1997 Southern California Ozone Study, cosine weighted solar irradiance was measured continuously at seven UV wavelengths (300, 306, 312, 318, 326, 333 and 368 nm) at two sites during the period 1 July to 1 November 1997. The "rst site was at Riverside (260 m a.s.l.) in the Los Angeles metropolitan a ...
... 1997 Southern California Ozone Study, cosine weighted solar irradiance was measured continuously at seven UV wavelengths (300, 306, 312, 318, 326, 333 and 368 nm) at two sites during the period 1 July to 1 November 1997. The "rst site was at Riverside (260 m a.s.l.) in the Los Angeles metropolitan a ...
Jahn−Teller Distortion in the Phosphorescent Excited State of Three
... when phosphorescence is enhanced by the presence of a heavy metal because of spin-orbit coupling.2 Other complexes have been suggested as selective chemical sensors for volatile organics,3 oxygen,4 and specific ions5 because the phosphorescence is reversibly enhanced or quenched on interaction with ...
... when phosphorescence is enhanced by the presence of a heavy metal because of spin-orbit coupling.2 Other complexes have been suggested as selective chemical sensors for volatile organics,3 oxygen,4 and specific ions5 because the phosphorescence is reversibly enhanced or quenched on interaction with ...
- Europhysics News
... not yield any magnification. Therefore Gabor suggested to use visible light for the reconstruction after scaling up all dimensions in the ratio of light waves to electron waves, that is, by about a factor 100,000. Although attempts at electron holography were made early on, their success was very li ...
... not yield any magnification. Therefore Gabor suggested to use visible light for the reconstruction after scaling up all dimensions in the ratio of light waves to electron waves, that is, by about a factor 100,000. Although attempts at electron holography were made early on, their success was very li ...
holography - UCSB Physics
... allowing more students to perform the lab. The optics table has been divided into two partitions which allows a specific set-up to remain intact. There is enough equipment to permit two simultaneous labs to run without daily tear-down and set-up. The lab now has two electromechanical shutters. All t ...
... allowing more students to perform the lab. The optics table has been divided into two partitions which allows a specific set-up to remain intact. There is enough equipment to permit two simultaneous labs to run without daily tear-down and set-up. The lab now has two electromechanical shutters. All t ...
Estimate the strength of given sodium carbonate solution
... compound of sufficient purity from which a standard solution can be prepared by directly weighing of a quantity of it, followed by dilution to give a defined volume of solution. A primary standard solution must follow these conditions: Compound should be free from impurity. Compound should be co ...
... compound of sufficient purity from which a standard solution can be prepared by directly weighing of a quantity of it, followed by dilution to give a defined volume of solution. A primary standard solution must follow these conditions: Compound should be free from impurity. Compound should be co ...
Equilibrium STUDY GUIDE by Keshara Senanayake ---
... If both sides have equal # of moles of gas a shift in either direction will not reduce the pressure. So a increase in pressure has no effect on the equilibrium situation. So an equilibrium reaction that has the same number of moles of gas on both sides of the equation will not be affected by the cha ...
... If both sides have equal # of moles of gas a shift in either direction will not reduce the pressure. So a increase in pressure has no effect on the equilibrium situation. So an equilibrium reaction that has the same number of moles of gas on both sides of the equation will not be affected by the cha ...
Ligand to Ligand Charge Transfer in
... (hydrotris(pyrazolyl)borato)(triethylamine)copper(I), (CuTpNEt3), and (hydrotris(pyrazolyl)borato)(triphenylphosphine)copper(I), (CuTpPPh3), are reported. The spectra of the arsine complex contain low-energy bands (with a band maximum at 16 500 cm-1 in emission and a weak shoulder centered at about ...
... (hydrotris(pyrazolyl)borato)(triethylamine)copper(I), (CuTpNEt3), and (hydrotris(pyrazolyl)borato)(triphenylphosphine)copper(I), (CuTpPPh3), are reported. The spectra of the arsine complex contain low-energy bands (with a band maximum at 16 500 cm-1 in emission and a weak shoulder centered at about ...
Audit Schedule
... 3. When you learn the definition of molarity, be sure to learn moles of solute per liter of solution, not just moles per liter. Remember that when preparing a solution, liters of solvent added is not always the same as the final volume of the solution. If you learn the complete definition for molar ...
... 3. When you learn the definition of molarity, be sure to learn moles of solute per liter of solution, not just moles per liter. Remember that when preparing a solution, liters of solvent added is not always the same as the final volume of the solution. If you learn the complete definition for molar ...
Lasers-An Overview
... Temporal Coherence (Longitudinal): The constancy and predictability of phase as a function of time when the waves travel along the same path at slightly different times. Spatial Coherence (Transverse): The phase relationship between waves traveling side by side at the same time but at some dista ...
... Temporal Coherence (Longitudinal): The constancy and predictability of phase as a function of time when the waves travel along the same path at slightly different times. Spatial Coherence (Transverse): The phase relationship between waves traveling side by side at the same time but at some dista ...
Research Article Structural and Optical Properties of Chemical Bath
... Copyright © 2013 A. C. Nwanya et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Silver oxide thin films were deposited on glass ...
... Copyright © 2013 A. C. Nwanya et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Silver oxide thin films were deposited on glass ...
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.