Raman-Nath regimeAn atom interferometer is a ubiquitous tool for measuring fundamental constants and inertial sensing. While it has been extremely useful in measuring inertial rotations, the fine-structure constant, gravity gradients, and local gravity, the measurement process lacks the ability to probe...
The study is based on a geometrical interpretation of the phenomenon. Imaging relationships are established for plane objects and extended to the 3-D case.doi:10.1016/0030-4018(79)90133-0Jacques PasteurRichard FerriereElsevier B.V.Optics Communications...
The holes are very closely spaced and form a transmissive optical grating, having dimensions suitable for operating in the Raman-Nath regime. Mirrors or lenses are formed within the device for guiding an input beam into the waveguide as a parallel light source. 展开 ...
A study has been carried out of self-diffraction in the Raman-Nath regime through three- and four-wave mixing processes at double Wood's anomaly related to... R Petruskevicius - 《Physica Status Solidi》 被引量: 45发表: 1999年 Third-harmonic generation via nonlinear Raman–Nath diffraction ...
Here the Raman-Nath diffraction regime is discussed, which is probably more favorable from an experimental point of view for the antiferromagnets in question. It is shown that for these materials, the usual mechanism of photoelastic interaction associated with acoustic modulation of the index of ...
which diffract in the Raman-Nash regime, has been proposed, the results of which have been interpreted to suggest a diffusion rate of the order of 10~(-8)cm~2/s. Using a similar acrylamide and polyvinylalcohol based material, the experiment involves monitoring the evolution of the zeroth ...
Raman-Nath regimeGaussian beamtwo-level atomsseparated standing wavesatom-field interactionWe give a detailed description of an atomic interferometer in which a gaussian beam of two-level atoms interacts with two separated standing waves. We consider specifically a situation where the atom-field ...
Light diffraction by acoustophotorefractive dynamic gratings in Raman―Nath regimePHOTOREFRACTIVE CRYSTALSRaman-Nath light diffraction on acoustophotorefractive holographic gratings that was recorded in cubic photorefractive crystals according to a synchronous detection mechanism was investigated. It was shown that...
This equation is firstly solved in the Raman-Nath regime. A general expression for the intensity in the optical near field (Fresnel zone) is given. For the case of a weak sound field and close to the sound column, it is shown that the light intensity, as a function of time, is ...
The holes are very closely spaced and form a transmissive optical grating, having dimensions suitable for operating in the Raman-Nath regime. Mirrors or lenses are formed within the device for guiding an input beam into the waveguide as a parallel light source....