We present the quantum theory of the far-off-resonance continuous-wave Raman laser using the HeisenbergLangevin approach. We show that the simplified quantum Langevin equations for this system are mathematically identical to those of the nondegenerate optical parametric oscillator in the time domain with the following associations: pump ↔ pump, Stokes ↔ signal, and Raman coherence ↔ idler. We d...

We form a one-dimensional optical lattice for Cs atoms using light tuned a few thousand linewidths below atomic resonance. Atoms are selectively loaded into deeply bound states by adiabatic transfer from a superimposed, near-resonance optical lattice. This yields a mean vibrational excitation n̄'0.3 and localization Dz 'l/20. Light scattering subsequently heats the atoms, but the initial rate is...

Experimental laser beam profiles often deviate somewhat from the ideal Gaussian shape of the axisymmetric TEM(00) laser mode. To take these deviations into account when calculating light scattering of an off-axis beam by a spherical particle, we use our phase-modeling method to approximate the beam-shape coefficients in the partial wave expansion of an experimental laser beam. We then use these...

INTRODUCTION The speed of diagnosis impacts on prognosis and survival in all types of cancer. In most cases survival and prognosis are significantly worse in rural and remote Australian populations who have less access to diagnostic and therapeutic services than metropolitan communities in this country. Research suggests that in general delays in diagnosis were a factor of misdiagnosis, the con...

Comparison between the results of strain and temperature dependent center Bragg wavelength shift have been accomplished using different apodization profiles to produce linearly chirped apodized far off resonance fiber Bragg gratings for the design of an optimum Dispersion compensator. The chirping is made using the ultraviolet (UV) phase mask method.

There is much evidence that young Japanese adults manifest relatively low body esteem-a phenomenon often explained as an outcome of modesty or limited need for self-enhancement. The author sought to identify additional determinants of this phenomenon and to explain its sources by examining the relationship between several presumed factors and level of body satisfaction rated by 263 Japanese stu...

We suggest a conditional phase-shifter that achieves a phase shift of p radians between two weak laser beams with a total energy density on the level of 1000 photons per atomic cross-section. The two laser beams interact through the simple nonlinear technique of ac Stark shifting the common ground state of a V-type system. We find that this switch can operate in the far-off resonance regime, wi...

The time evolution of driven two-level systems in the far off-resonance regime is studied analytically. We obtain a general first-order perturbative expression for the time-dependent density operator which is applicable regardless of the coupling strength value. In the strong field regime, our perturbative expansion remains valid even when the far off-resonance condition is not fulfilled. We fi...

Prescribing medications off-label is commonplace in dermatology. Recent policy changes on the regulatory abilities of the US FDA and legal precedents regarding this topic have led to intense debate on free speech about off-label drug use by physicians and drug manufacturers. Here, we summarize and discuss the risks and benefits of off-label promotion and how this relates to quality patient care...

We propose that micrometer-sized atom traps can be created using the optical dipole force between the ends of two single-mode optical fibers carrying counterpropagating light beams of two different wavelengths from both fibers. The traps have a simple design that is feasible to implement with commercially available products. They can be used as a flexible " atom tweezer " to manipulate atoms in...