We present a mathematical model that relates the surface morphology of randomly surface-textured thin films with the intensity distribution of scattered light. The model is based on the first order Born approximation see e.g., M. Born and E. Wolf, Principles of Optics, 7th ed. Cambridge University Press, Cambridge, England, 1999 and on Fraunhofer scattering. Scattering data of four transparent ...

Magnetic Raman scattering from a frustrated spin–1/2 Heisenberg–chain is considered with a focus on the uniform phase of the spin–Peierls compound CuGeO3. The Raman intensity is analyzed in terms of a Loudon–Fleury scattering process using a spinless–fermion mean–field theory developed for the frustrated spin–chain. A comparison to experimental data is presented and the frustration and temperat...

Results of studies on Compton scattering imaging using synchrotron high-energy X-rays are reported. The technique is applied to a discharging coin cell, and the intensity of Compton scattered X-rays from the inside of the cell has been measured as a function of position and time. The position-time intensity map captures the migration of lithium ions in the positive electrode and reveals the str...

We have developed a new method of mapping phonon dispersion relations based on momentum-resolved x-ray calorimetry. X-ray scattering intensities are measured at selected points in reciprocal space with suitably chosen polarization configurations; the thermal part of the scattering intensity is extracted by scanning the temperature of the sample. The intensity variations, governed by the phonon ...

Phase front modulation was previously used to refocus light after transmission through scattering media. This process has been adapted here to work in reflection. A liquid crystal spatial light modulator is used to conjugate the phase scattering properties of diffuse reflectors to produce a converging phase front just after reflection. The resultant focused spot had intensity enhancement values...

Optical-resolution photoacoustic flowmetry (PAF) allows noninvasive single-cell flow measurements. However, its operational depth is limited by optical diffusion, which prevents focusing beyond shallow depths in scattering media, as well as reducing the measurement signal-to-noise ratio (SNR). To overcome this limitation, we used binary-amplitude wavefront shaping to enhance light focusing in t...

We present model-based image simulations for zero-loss and plasmon-loss filtered images at 20 kV for graphene and silicon based on the mutual coherence approach. In addition, a new approximation for the mixed dynamic form factor is introduced. In our calculation multiple elastic scattering and one inelastic scattering are taken into account. The simulation shows that even the intensity of zero-...

Coherent Rayleigh scattering (CRS) is studied in the high intensity regime, where the optical lattice potential approaches the thermal energy of the gas particles. We describe this optical-kinetic process using a 1-D Boltzmann equation with an arbitrary strong optical force and show that in this regime a line shape narrowing phenomenon is predicted and that the signal intensity saturates when c...

A Mössbauer powder diffractometer was used to measure diffraction patterns from polycrystalline foils of Fe3Al. The intensities of Bragg diffractions were measured as a function of the energy of the incident photon. The bcc fundamental diffractions showed large changes in intensity as the incident energy was tuned through the nuclear resonances. These variations of diffraction intensity with in...

A femtosecond X-ray source was developed by Thomson scattering through interaction between a lowemittance picosecond electron beam and a terawatt femtosecond laser light at 90 configuration. The observed X-ray intensity with peak energy of 2.3 keV and pulse duration of 270 fs rms was typically 1.4x10 photons/pulse. The pulse-to-pulse fluctuation of the X-ray intensity was measured to be 25%. Th...