Abstract:
A method (300) of additively manufacturing a three-dimensional object (114) includes irradiating a first build plane region (152a) using a first energy beam (134a) defining a beam diameter (DB), the first energy beam travelling along a first oscillating path (190) in a first direction (D1) to consolidate a first wall (153a) defining a thickness perpendicular to the first direction D1, wherein a build material (118) adjacent a first side (157a) of the first wall (153a) and the build material (118) adjacent a second side (159a) of the first wall (153a), opposite the first side (157a) of the first wall (153a), remains unconsolidated, and wherein the first oscillating path (190) comprises a first plurality of oscillations (192) that define at least the first side (157a) of the first wall (153a), and wherein the thickness (T) of the first wall (153a) is greater than the beam diameter (DB).
Abstract:
A method (300) of additively manufacturing a three-dimensional object (114) includes irradiating a first build plane region (152a) using a first energy beam (134a), irradiating a second build plane region (152b) using a second energy beam (134b), and irradiating an interlace region (154) between the first build plane region (152a) and the second build plane region (152b), wherein irradiating the interlace region comprises directing the first energy beam (134a) along a first oscillating path (190), and directing the second energy beam (134b) along a second oscillating path (210) intersecting and overlapping with the first oscillating path (190).
Abstract:
A method implemented using a data recording system 100 is disclosed. The method includes receiving a micro-holographic data storage medium 104 comprising a micro-hologram track 308 having a first cross-sectional area. The method further includes recording a data in the micro-hologram track 308 to form a data track in the micro-hologram track 308 having a second cross-sectional area smaller than the first cross-sectional area.
Abstract:
There are provided compositions, optical data storage media and methods of using the optical data storage media. The compositions comprise a non-linear sensitizer comprising one or more subphthalocyanine reverse saturable absorbers capable of absorbing actinic radiation to cause upper triplet energy transfer to a reactant that undergoes a photochemical change upon triplet excitation.
Abstract:
Techniques are provided for increasing storage capacity in a holographic storage system. While typical holographic storage systems involve binary storage for each data position in a holographic disk, present techniques involve storing data such that more than two data levels may be recorded at different positions (66,68,70) in a data layer (60). In some embodiments, a recording beam directed to the disk may be adjusted to different power levels depending on the data level to be recorded. Furthermore, the recording time at a data position may be adjusted to increase the energy directed to the data position by increasing the amount of time the recording beam is impinged on the data position. Embodiments are suitable for different types of holographic storage, including dye-based medium.