Abstract: Apparatus for atomic layer deposition on a surface of a substrate includes a precursor injector head. The precursor injector head includes a precursor supply and a deposition space that in use is bounded by the precursor injector head and the substrate surface. The precursor injector head is arranged for injecting a precursor gas from the precursor supply into the deposition space for contacting the substrate surface. The apparatus is arranged for relative motion between the deposition space and the substrate in a plane of the substrate surface. The apparatus is provided with a confining structure arranged for confining the injected precursor gas to the deposition space adjacent to the substrate surface.

Abstract: Method and apparatus for a tunable laser device.

Abstract: A tunable semiconductor laser device includes a semiconductor structure, a longitudinal structure provided on the top surface of the semiconductor structure, a first longitudinal interdigitated transducer, wherein the first IDT is arranged on one lateral side of the longitudinal structure and at a distance along the lateral axis from said structure and parallel to the longitudinal structure.

Abstract: Apparatus for atomic layer deposition on a surface of a substrate includes a precursor injector head. The precursor injector head includes a precursor supply and a deposition space that in use is bounded by the precursor injector head and the substrate surface. The precursor injector head is arranged for injecting a precursor gas from the precursor supply into the deposition space for contacting the substrate surface. The apparatus is arranged for relative motion between the deposition space and the substrate in a plane of the substrate surface. The apparatus is provided with a confining structure arranged for confining the injected precursor gas to the deposition space adjacent to the substrate surface.

Abstract: A method for forming an image of a beam source that during operation provides a beam, and wherein the beam is split so as to divide the beam into beamlets, wherein a redirecting organ is used with which each individual beamlet is redirected to a predetermined degree with the extent of redirection of each beamlet by means of the redirecting organ depending on the distance of that beamlet to a central axis of the beam, such that the beamlets converge in a common point with the beamlets from the beam source being focused to foci located in the redirecting organ, and with the beamlets originating from these foci being focused in the common imaging point.

Abstract: A method for forming an image of a beam source that during operation provides a beam, and wherein the beam is split so as to divide the beam into beamlets, wherein a redirecting organ is used with which each individual beamlet is redirected to a predetermined degree with the extent of redirection of each beamlet by means of the redirecting organ depending on the distance of that beamlet to a central axis of the beam, such that the beamlets converge in a common point with the beamlets from the beam source being focused to foci located in the redirecting organ, and with the beamlets originating from these foci being focussed in the common imaging point.

Abstract: The invention relates to a device (201) for scanning an optical disc (202), such as a CD or DVD, the device (201) comprising a radial error detection unit (210) for determining a radial tracking error signal (e.g. a RPP or DTD-signal) while moving radially across a pattern (203) of substandially parallel data tracks on the disc (202). The hereby obtained periodic signal is analyzed by a tilt detection circuit (211) for detecting disc tilt. Each period of the periodic signal corresponds to a pitch of the data tracks. The tilt detection circuit (211) is arranged for detecting an asymmetry in the periodic signal. In an embodiment the asymmetry is detected by integrating the periodic signal over an integer number of periods.

Abstract: Magneto-optical device comprising a magneto-optical read and/or write head with a coil (5), and a means for generating a laser beam (1), wherein the laser beam is passed through an aperture (12) in the coil (5) during operation, characterized in that the coil holder comprises a recess at or around the position of the optical center of the coil, and a lens (4) extends, viewed from the disk, behind the coil, overlapping the coil at least partly.

Abstract: A writing scheme for writing an information to an optical recording medium by forming mark areas, e.g. pit areas, corresponding to a predetermined state of said information on a recording surface of said optical recording medium. The writing scheme is adapted to modulate the shape of said mark areas in a predetermined manner so as to obtain incomplete mark areas which do not fully cover the size which is allocated to the channel bit to be written. The incomplete mark areas may be obtained by modulating their shape in any manner suitable to reduce the reflection surface and/or to increase diffraction. Additionally, a multi-level modulation or a binary modulation may be achieved by controlling the shape or number of the incomplete mark areas, respectively, in accordance with the level of a multi-level coded information.

Abstract: A disk cartridge and storage assembly comprises an optical disk and a housing (2) in which the disk is rotatably accommodated. The housing is adapted to be inserted into a disk drive together with the disk. The cartridge comprises at least a first coupling member (5) on the housing. The assembly is provided with a link element (6) to couple the cartridge to a storage support. A second coupling member (9) is provided on the link element and is adapted to be removably coupled to the first coupling member. In this way it is possible to store or transport one or more disk cartridges in a convenient manner.

Abstract: The invention relates to a MO-ROM medium with a small track width, wherein data is recorded at least on one side of a disk wherein a data side has on a substrate at least a recording layer wherein said data is recorded and at least a read-out layer to reproduce said data recorded in said recording layer during read-out. Recorded data is arranged within adjacent data tracks on said disk and a recording density within a data track is beyond the diffraction limited density of the focussing optics. By arrangement of the data tracks in groups of several adjacent data tracks wherein a track width within a data track group is at least less than the diffraction limit of the focussing optics and providing reference means for tracking a selected data track group with said read-out laser beam a specific data track of each data track group can be read-out by adjusting a proper offset value within the radial tracking unit.

Abstract: The present invention relates to a writing scheme for writing an information to an optical recording medium by forming mark areas, e.g. pit areas, corresponding to a predetermined state of said information on a recording surface of said optical recording medium. The writing scheme is adapted to modulate the shape of said mark areas in a predetermined manner so as to obtain incomplete mark areas which do not fully cover the size which is allocated to the channel bit to be written. Thereby, the problem of folding can be prevented or alleviated during the writing or mastering process due to the fact that the incomplete mark areas, e.g. pit effects, do not form large mirror surfaces when combined in clusters of adjacent pits. The incomplete mark areas may be obtained by modulating their shape in any manner suitable to reduce the reflection surface and/or to increase diffraction.

Abstract: An optical data carrier disk reader is adapted for detecting a slope of a wall in a data track of an optical disk. An optical disk has pits (811, 812), having walls with at least two different steepnesses, in its data track. The steepness represents information written on the optical disk. A method for making an optical disk stamper (8) comprising exposing portions of a photo-sensitive layer to electro-magnetic radiation is also described. By controlling the variation of the focal point during exposure, the inclination of the walls between the bump (811, 812) or pit forming portions and the “land” forming portions of the surface of the optical disk stamper (8) can be controlled.