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2 - Durham Research Online
... Three diaminodicyanoquinodimethanes, 4-(R1R2C)-1-[(NC)2C]-C6H4 (R1,R2 = H2N- 1; R1 = 3,5-Me2-4OC4H6N-, R2 = H2N- 2; R1 = 3,5-Me2-4-OC4H6N-, R2 = 4-Me-C5H9N- 3), were investigated using carbon-13 NMR, steady state and ultrafast transient absorption and ultrafast fluorescence spectroscopies to unravel ...
... Three diaminodicyanoquinodimethanes, 4-(R1R2C)-1-[(NC)2C]-C6H4 (R1,R2 = H2N- 1; R1 = 3,5-Me2-4OC4H6N-, R2 = H2N- 2; R1 = 3,5-Me2-4-OC4H6N-, R2 = 4-Me-C5H9N- 3), were investigated using carbon-13 NMR, steady state and ultrafast transient absorption and ultrafast fluorescence spectroscopies to unravel ...
Dependence of Intramolecular Vibrational Relaxation on Central
... the density of states, leading to sharp eigenstates in the spectrum when the resolution is greater than the spacing between background states. For experimental cases where the homogeneous spectrum consists of a large number of eigenstates (intermediate or statistical case IVR) the initial decay of P ...
... the density of states, leading to sharp eigenstates in the spectrum when the resolution is greater than the spacing between background states. For experimental cases where the homogeneous spectrum consists of a large number of eigenstates (intermediate or statistical case IVR) the initial decay of P ...
Pore Scale Modeling of Rock Properties and Comparison to Laboratory Measurements
... with feldspar, sulfate, and carbonates, which are usually either isolated or small, also do not contribute to permeability (Nelson, 2000; Wu, 2004). Thus, as long as the microtomography ...
... with feldspar, sulfate, and carbonates, which are usually either isolated or small, also do not contribute to permeability (Nelson, 2000; Wu, 2004). Thus, as long as the microtomography ...
pulsed, pure
... without any external filtering before detection. • If any idler photon is detected, then the signal photon will be in the first Schmidt mode with 99% probability. ...
... without any external filtering before detection. • If any idler photon is detected, then the signal photon will be in the first Schmidt mode with 99% probability. ...
Memristors by Quantum Mechanics
... QED induced radiation based on QM is proposed to provide both a theoretical and experimental basis to the rational design of polymer nanocomposites. EUV cross-linking is the mechanism by which ALL polymers polymerize in nanocomposites Anyone interested in developing QED process? ...
... QED induced radiation based on QM is proposed to provide both a theoretical and experimental basis to the rational design of polymer nanocomposites. EUV cross-linking is the mechanism by which ALL polymers polymerize in nanocomposites Anyone interested in developing QED process? ...
Femtosecond Wavepacket Spectroscopy: Influence of Temperature
... emission then depends only on the populations of the upper state, and absorption depends only on the population of the lower state (only the net rates depend on the population difference). The total signal can be expressed as the change in net absorption, but the advantage of using separate stimulat ...
... emission then depends only on the populations of the upper state, and absorption depends only on the population of the lower state (only the net rates depend on the population difference). The total signal can be expressed as the change in net absorption, but the advantage of using separate stimulat ...
POLARIZATION AT THE EXTREME LIMB OF THE SUN AND THE
... unpolarizable (W2 = 0 at the center of the line). In contrast, the observations reveal a small but significant polarization peak centered around the D1 resonance. Another mechanism that has considerable influence on the intrinsic line polarizability is polarization transfer by optical pumping, as su ...
... unpolarizable (W2 = 0 at the center of the line). In contrast, the observations reveal a small but significant polarization peak centered around the D1 resonance. Another mechanism that has considerable influence on the intrinsic line polarizability is polarization transfer by optical pumping, as su ...
[pdf]
... Flow in turbid media is an interesting problem that has received some attention. In these measurements experimenters typically determine a correlation function that may be a compound of many decays representing a weighted average of flow within the sample. For example, Bonner and Nossa! have develop ...
... Flow in turbid media is an interesting problem that has received some attention. In these measurements experimenters typically determine a correlation function that may be a compound of many decays representing a weighted average of flow within the sample. For example, Bonner and Nossa! have develop ...
Module 01 : Mathematical Physics-I
... Basic AD/DC models for BJT and FET amplifiers, hybrid model; MOSFET amplifiers. The operation point bias stability and biasing schemes for discrete components and integrated circuit BJT and FET amplifiers, analysis and design. UNIT – II The common emitter amplifier. The emitter follower. FET amplifi ...
... Basic AD/DC models for BJT and FET amplifiers, hybrid model; MOSFET amplifiers. The operation point bias stability and biasing schemes for discrete components and integrated circuit BJT and FET amplifiers, analysis and design. UNIT – II The common emitter amplifier. The emitter follower. FET amplifi ...
Few-cycle terahertz generation and spectroscopy of nanostructures
... a wavelength of the incident light. An absolute maximum is achieved for a layer with an optical thickness of 54 λo . At this thickness the absorption reaches more than 90% for an absorption coefficient of α = 1.335 × 104 cm−1 in GaAs at 800 nm (Palik 1985). This value is larger than that achievable fo ...
... a wavelength of the incident light. An absolute maximum is achieved for a layer with an optical thickness of 54 λo . At this thickness the absorption reaches more than 90% for an absorption coefficient of α = 1.335 × 104 cm−1 in GaAs at 800 nm (Palik 1985). This value is larger than that achievable fo ...
Self-assembly of three-dimensional photonic-crystals with
... Fig. 2 shows optical transmission spectra at normal incidence, with curves b, c, and d obtained from macroscopic areas of the samples shown in Fig. 1(b), (c), and (d), respectively. The colloidal crystal multilayers show a clear stop band at 950 nm, which arises from the Bragg reflection of the (111 ...
... Fig. 2 shows optical transmission spectra at normal incidence, with curves b, c, and d obtained from macroscopic areas of the samples shown in Fig. 1(b), (c), and (d), respectively. The colloidal crystal multilayers show a clear stop band at 950 nm, which arises from the Bragg reflection of the (111 ...
[pdf]
... vapor length. The cell was maintained at a constant temperature of about 750 K to produce a weak signal absorption of 50% at line center. The absence of a hyperfine interaction in 174Yb allowed us to realize ideal two-level atomic response by employing circularly polarized excitation fields and appl ...
... vapor length. The cell was maintained at a constant temperature of about 750 K to produce a weak signal absorption of 50% at line center. The absence of a hyperfine interaction in 174Yb allowed us to realize ideal two-level atomic response by employing circularly polarized excitation fields and appl ...
che 3221-analytical chemistry ii - UR-CST
... a. If the absolute uncertainty in reading a buret is constant at ±0.02 mL, what will be the percent relative uncertainty: (a) for a volume of 15 mL, (b) for a volume of 0.085 L. (4 marks) b. With a schematic diagram, explain how Gravimetric combustion analysis for carbon and hydrogen is achieved ...
... a. If the absolute uncertainty in reading a buret is constant at ±0.02 mL, what will be the percent relative uncertainty: (a) for a volume of 15 mL, (b) for a volume of 0.085 L. (4 marks) b. With a schematic diagram, explain how Gravimetric combustion analysis for carbon and hydrogen is achieved ...
stability and spectroscopic properties of negative ions
... superhalogens. First one involves d1 transition metal (Sc, Y, La) atoms surrounded by Cl while the second one involves simple metals (Na, Mg, Al) surrounded by pseudohalogens such as CN. Geometry, electronic structure, and electron affinity of these species containing up to 5 ligands have been calcu ...
... superhalogens. First one involves d1 transition metal (Sc, Y, La) atoms surrounded by Cl while the second one involves simple metals (Na, Mg, Al) surrounded by pseudohalogens such as CN. Geometry, electronic structure, and electron affinity of these species containing up to 5 ligands have been calcu ...
Microsoft Word - DORAS
... nonlinear chirp across the pulse can be observed. If the injected power is varied, then important variations in the non-linear chirp across the pulse appear, as illustrated by Fig. 6 (c). These observations demonstrate that pulse compression of an externally injected GS pulse source can be achieved ...
... nonlinear chirp across the pulse can be observed. If the injected power is varied, then important variations in the non-linear chirp across the pulse appear, as illustrated by Fig. 6 (c). These observations demonstrate that pulse compression of an externally injected GS pulse source can be achieved ...
Resonant Effects in Collisions of Relativistic Electrons in the Field of
... electron–positron pairs on a nucleus in a light field. We derive a general relativistic expression for the amplitude of this process in the field of an elliptically polarized wave with an arbitrary intensity. We analyze resonances related to the Green function of an intermediate electron (positron) ...
... electron–positron pairs on a nucleus in a light field. We derive a general relativistic expression for the amplitude of this process in the field of an elliptically polarized wave with an arbitrary intensity. We analyze resonances related to the Green function of an intermediate electron (positron) ...
Analysis of Tilted Grating Etalon for DWDM Demultiplexer Sommart Sang-Ngern, Non-member
... axis is 0.645 rad, internal angle is 0.2 degree and coupling coefficient for period grating is 0.2/L. Fig.7 shows the transmission spectral of TGE as a function of wavelength in the range of 1350-1600 nm when the incident angle is varied 0-50 degree. The TGE can act as a variable band stop wavelengt ...
... axis is 0.645 rad, internal angle is 0.2 degree and coupling coefficient for period grating is 0.2/L. Fig.7 shows the transmission spectral of TGE as a function of wavelength in the range of 1350-1600 nm when the incident angle is varied 0-50 degree. The TGE can act as a variable band stop wavelengt ...
Chapter 4 Quantum correction to the Pair Distribution Function calculated classically.
... allows an exact QM solution. After that we develop a technique that allows to take into account the effect of zero point motion in PDFs calculated classically for more complex molecules. The same method is used to correct the classically calculated heat capacitance. Usually, even in very simple mole ...
... allows an exact QM solution. After that we develop a technique that allows to take into account the effect of zero point motion in PDFs calculated classically for more complex molecules. The same method is used to correct the classically calculated heat capacitance. Usually, even in very simple mole ...
Laser system for the Rydberg excitation of Strontium ions
... pulse sequence πcontrol → 2πtarget → πcontrol . As explained in the text below, the Rydberg excitation of the control atom induces an energy shift B of the Rydberg level |Ryi for the target atom such that its excitation is blocked. Consider a two-atom system and a narrow laser, resonant only to a si ...
... pulse sequence πcontrol → 2πtarget → πcontrol . As explained in the text below, the Rydberg excitation of the control atom induces an energy shift B of the Rydberg level |Ryi for the target atom such that its excitation is blocked. Consider a two-atom system and a narrow laser, resonant only to a si ...
View PDF - CiteSeerX
... a PUF is similar to a keyed hash function. The key is the physical system consisting of many “random” components. In order to be hard to characterize, the system should not allow efficient extraction of the relevant properties of its interacting components by measurements. Physical systems that are ...
... a PUF is similar to a keyed hash function. The key is the physical system consisting of many “random” components. In order to be hard to characterize, the system should not allow efficient extraction of the relevant properties of its interacting components by measurements. Physical systems that are ...
Influence of optical forces on nonlinear optical frequency conversion
... Efficient THG requires the satisfaction of the phase-matching condition, where is the propagating constant Δβ = 0. In optical waveguides, the phase-matching condition can be reached if the modal dispersion compensates the material dispersion. For the parallel, suspended waveguides with fixed edges, ...
... Efficient THG requires the satisfaction of the phase-matching condition, where is the propagating constant Δβ = 0. In optical waveguides, the phase-matching condition can be reached if the modal dispersion compensates the material dispersion. For the parallel, suspended waveguides with fixed edges, ...
X-ray fluorescence
![](https://commons.wikimedia.org/wiki/Special:FilePath/LDAutoXRFPic.jpg?width=300)
X-ray fluorescence (XRF) is the emission of characteristic ""secondary"" (or fluorescent) X-rays from a material that has been excited by bombarding with high-energy X-rays or gamma rays. The phenomenon is widely used for elemental analysis and chemical analysis, particularly in the investigation of metals, glass, ceramics and building materials, and for research in geochemistry, forensic science and archaeology.