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Approximate Theory of Rectangular Optical Waveguides
Approximate Theory of Rectangular Optical Waveguides

slides introducing IR/Raman of proteins
slides introducing IR/Raman of proteins

... • Frequency matches change in energy, type of motion E = hn, where n = c/l (in sec-1 or Hz) • Intensity increases the transition probability— Absorbance I ~ e2 –where e is the Electric Field strength in the radiation • Absorbance is ratio A = -log(I/Io) • Linear Polarization aligns to direction of ...
Poster PDF (1.5mb)
Poster PDF (1.5mb)

... field (κ<). This second time constant can be changed experimentally by the control beam power. ...
Nothing Travels Faster Than Light
Nothing Travels Faster Than Light

Photoelectric Effect
Photoelectric Effect

lecture20
lecture20

Chapter 7
Chapter 7

Flame Test Lab
Flame Test Lab

... energy of each photon is described by the equation E = hv, where h is Planck’s constant (6.63 x 10 -34 Js) and v is the frequency of the radiation. If the wavelength of the released photon is between 400 nm and 700 nm, the energy is emitted as visible light. The color of the light depends on the spe ...
Electromagnetic Waves and Photons are describing the same thing
Electromagnetic Waves and Photons are describing the same thing

Photosynthesis Stores Energy in Organic Compounds
Photosynthesis Stores Energy in Organic Compounds

...  Uses ATP and NADPH to reduce CO2 to make glucose, which can be converted to starch ...
A day in the life of a Laser scientist
A day in the life of a Laser scientist

... electrical current, chemical reaction ...
Frequency-comb-referenced two-wavelength source
Frequency-comb-referenced two-wavelength source

Hydrogen Spectrum
Hydrogen Spectrum

Photosynthesis Stores Energy in Organic Compounds
Photosynthesis Stores Energy in Organic Compounds

Time-Gated Photoionization Spectroscopy Demonstrated for Cesium Rydberg Wave Packets
Time-Gated Photoionization Spectroscopy Demonstrated for Cesium Rydberg Wave Packets

... To excite the Rydberg wave packets a picosecond dye laser is used, which is pumped by the second harmonic of a mode-locked Nd:YAG (where YAG denotes yttrium aluminum garnet) laser operating at 76 MHz. The pulses are amplified using a three-stage dye cell amplification chain which is pumped by the se ...
Lecture 22 - LSU Physics
Lecture 22 - LSU Physics

Waves and Energy
Waves and Energy

... another phenomenon that cannot be explained by the wave model of light. The light of the neon sign is produced by passing electricity through a tube filled with neon gas. Neon atoms in the tube absorb energy and become excited. These excited atoms then release energy by emitting light. If the light ...
METO 621
METO 621

... • To get enough energy to break up a molecule (dissociation) the wavelength must be in or below the ultraviolet. Thus dissociation typically occurs as the result of electronic transitions • Small, light chemical species generally have electronic transitions at wavelengths shorter than those for more ...
Demonstration of Optical Rotatory Dispersion of Sucrose
Demonstration of Optical Rotatory Dispersion of Sucrose

... in the region of wavelength λ, the optical rotation is a sum over such expressions. When the specific rotation of a compound decreases with increasing wavelength as in eq 3 and there are no local extrema in the curve, the optical rotatory dispersion (ORD) curve is called a plain curve. Many articles ...
1. Introduction - Univerza v Ljubljani
1. Introduction - Univerza v Ljubljani

A comparison study of CdTe and CdSe/ZnS quantum dots on
A comparison study of CdTe and CdSe/ZnS quantum dots on

Lecture 23
Lecture 23

... Lasers work by amplification of light. You are familiar with amplification of electrical signals that work by using the signal as the driving force for a circuit element that has power fed into it, and can therefore respond with a more powerful signal. The key point is that the amplifier must be abl ...
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File

... this effect by Philipp Lenard showed that the speed of the ejected electro ns did not depend on the intensity of the light but its frequency. This could not be explained using Maxwell’s laws and a wave view of light. At the same time Max Planck was studying a seemingly separate problem called black ...
Quantum Physics - StrikerPhysics
Quantum Physics - StrikerPhysics

... En = n(hf) integer multiples of hf where h = planck’s constant = 6.63 X 10 –34 Js ...
Simultaneous slow and fast light effects using in atomic vapor
Simultaneous slow and fast light effects using in atomic vapor

... 25 May 2009 / Vol. 17, No. 11 / OPTICS EXPRESS 8775 ...
< 1 ... 171 172 173 174 175 176 177 178 179 ... 220 >

Ultrafast laser spectroscopy

Ultrafast laser spectroscopy is a spectroscopic technique that uses ultrashort pulse lasers for the study of dynamics on extremely short time scales (attoseconds to nanoseconds). Different methods are used to examine dynamics of charge carriers, atoms and molecules. Many different procedures have been developed spanning different time scales and photon energy ranges; some common methods are listed below.
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