Optical hole burning with finite excitation time

Nuclear-quadrupole optical hole burning in the stoichiometric material EuP5O14.

Hole burning, which is attributed to optical pumping of nuclear-quadrupole levels, has been observed in the stoichiometric rare-earth compound, EuP5O14 . The long lifetime of these holes (-60 min) implies slow nuclear-spin flip-flop rates. The small magnetic moment of Eu3+ has prevented conventional magnetic-resonance measurements on Eu3+ compounds, but hole burning provides a sensitive method ...

Slow light with persistent hole burning

R. N. Shakhmuratov, A. Rebane, P. Mégret, and J. Odeurs Instituut voor Kernen Stralingsfysica, Katholieke Universiteit Leuven, Celestijnenlaan 200 D, B-3001 Leuven, Belgium Optique Nonlinéaire Théorique, Université Libre de Bruxelles, Campus Plaine CP 231, B-1050 Bruxelles, Belgium Kazan Physical Technical Institute, Russian Academy of Sciences, 10/7 Sibirsky trakt, Kazan 420029 Russia Physics ...

Finite Plate with Circular and Square Hole under Partial Loading

In this paper a general analytical solution is obtained to find stress distribution in a finite elastic plate with a circular or square hole subjected to arbitrary biaxial partial loading using modified boundary condition by assuming plane stress conditions. The method employed is based on solution of circular hole in finite rectangular plate. This plate is mapped to circular ones and the parti...

Optical delay with spectral hole burning in Doppler broadened cesium vapor

Time-resolved optical measurements with spread spectrum excitation.

We propose a novel method for measuring time-dependent optical quantities. A train of excitation pulses modulated by a pseudorandom bit sequence is used as the light source, and a cross-correlation scheme is used to retrieve the impulse response. Simulation results of the temporal point-spread function of a diffusive wave are provided, as well as experimental results of a fluorescence decay pro...