Showing papers in "Optics Communications in 1989"

TL;DR: In this article, the evanescent field lying on the surface of a guiding structure is detected by means of a dielectric probe, which can then be used for determining the topography of the object.

TL;DR: In this paper, a new optical scheme that eliminates birefringence effects on the polarization state of a beam which retraces its path was proposed. But it does not control the exit polarization state but it removes the bireringence change effect at its source.

TL;DR: In this article, an open-ended transmission line such as a coaxial or stripline was used as the scanning probe to obtain sub-wavelength resolution of 12 cm microwaves and 2mm outer diameter.

TL;DR: In this article, it was shown that the motion of a two-level atom through a spatially varying single-mode field gives rise to nonlinear transient effects which are similar to self-induced transparency and adiabatic following.

TL;DR: A new algorithm is introduced that allows the blind deconvolution of a single blurred image, each of whose pixels is complex valued, and the effect upon the algorithm's convergence of introducing various constraints is reported.

TL;DR: In this paper, all possible Dammann-gratings (with phase values of 0 and π) with up to 21 equal diffraction orders in one dimension were compared in terms of light efficiency, feature sizes and sensitivity to errors.

TL;DR: In this paper, the phase probability density of the unitary and hermitian phase operators was derived for the case of the squeezed vacuum. But the results differ markedly from previous calculations involving the Susskind and Glogower operators.

TL;DR: In this paper, the directionality of a partially coherent Bessel-Gauss beam is studied and two regions where the gaussian behaviour dominates, where the beam is diffraction free, are identified.

TL;DR: In this article, the large scatter found in the intercomparison of spectroradiometric scales maintained by standards laboratories is attributed to the spectral shifts, due to source correlation and violation of scaling law.

TL;DR: In this article, the attenuated total reflection method is used for measuring the electrooptic properties of a thin film of a polarized ferroelectric polymer and the piezoelectric character of the sample is shown to be of major importance.

TL;DR: In this article, it was shown that the fluorescence emitted in front of a mirror exhibits angular and spectral localization effects that are caused by self-interference in the spontaneous emission from a Wiener-fringe pattern.

TL;DR: In this paper, the optical properties of thin films, containing metal and voids in an oblique columnar structure, were modelled in the quasi-static limit, and the complex dielectric function was shown to be strongly dependent on the angle of incidence and on the columnar orientation for p-polarised light.

TL;DR: In this article, a method for calculating the s-parametrized quasiprobability distributions W (α, s ) of Cahill and Glauber for the damped Jaynes-Cummings model is outlined.

TL;DR: In this paper, it has been shown theoretically and experimentally that OPO are able to squeeze quantum fluctuations of one quadrature component of the field 4. And it has also been shown experimentally

TL;DR: A multichannel colour image recognition technique is developed that combines classical matched filters and phase only filters and shows the discrimination capabilities of these filters.

TL;DR: In this article, a new laser dye called 1,3,5,7,8-pentamethylpyrromethene-BF2 complex (PMP-BF) was presented, which lased about 300% more efficiently than Coumarin 545.

TL;DR: In this paper, an electronic halftone procedure based on an iterative Fourier transform algorithm is presented, where constraints are introduced in the image and spectrum to affect the binarization.

TL;DR: Two methods for vibration measurement are presented, based on phase shifting TV-holography and digital image processing, developed to optimize fringe contrast and quality.

TL;DR: In this paper, the authors studied the atomic beam deflection in a quantum standing wave field and showed that the deflection is a sensitive function of the field photon statistics, which is similar to our work.

TL;DR: By stimulating the nonlinear evolution of the polarization of short pulses in birefringent fibers, this article observed a spatial instability in the polarization against small changes in the soliton peak power.

TL;DR: An error correction and diffusion algorithm to code and quantize digital phase holograms is presented and it is a one step process easy to implement.

TL;DR: In this article, a mutually-pumped phase conjugator that works without relying on the internal reflection has been demonstrated experimentally in both one BaTiO 3 crystal and two separated Ba TiO 3 crystals.

TL;DR: In this paper, the angular distribution of the intensity of the diffuse component of the transmitted light has a narrow peak at an angle of transmission that corresponds to the antispecular direction, which is the analogue for transmission of the enhanced backscattering of p-polarized light from a randomly rough metal surface.

TL;DR: Based on a Talbot interferometry, an improved technique for measuring the focal length of a lens is proposed in this article, where the test lens is positioned at the Talbot image of a grating, then a different grating is arranged at the image of the first grating through a test lens.

TL;DR: In this paper, a new beam shape based on truncation of Weber function is presented, and propagation features of this beam are discussed by means of numerical simulation and appear to have some advantage when compared to the previous ones.

TL;DR: In this paper, a single mode CW semiconductor laser with an optoelectronic feedback gives a modulated output, with a sharp frequency peak depending on the feedback delay, and a theoretical model, with few parameters assigned from the experiment, yields quantitative agreement with observations.

TL;DR: In this article, the authors considered a homogeneously broadened ring laser with spherical mirrors, where the atomic line is resonant with three degenerate transverse modes of the resonator.

TL;DR: In this paper, the photon statistics of squeezed number states and thermal states were derived using the Wigner functions for the squeezed fields and the photon number distribution was interpreted in terms of phase-space interference.

TL;DR: In this article, a modified Linnik-type interferometer was used for the computer-aided phase microscope (CPM) with a height resolution of about 0.3-1 nm and lateral resolution 0.02-0.1 μm.

TL;DR: In this paper, experiments on nonlinear magnetic optical (Faraday) rotation on resonance transitions of atomic samarium are described, and qualitative explanations of observed phenomena are given. Measurements were carried out on transitions with different angular momenta of upper and lower states: 1→0, 0→1 and 1→1.