Abstract:
A method of fabricating a second pole piece layer of a write head is constructed using first and second photoresist layers which are sensitive to light with different bandwidths. The second photoresist layer, which is on top of the first photoresist layer, is light exposed with light that excludes light that would change the molecular structure of the first or bottom photoresist layer. After light exposure and development of the second photoresist layer to provide an opening for yoke and back gap portions of the second pole piece layer, the first photoresist layer is light exposed with light that includes the light excluded in the light exposure step of the second photoresist layer. The light exposure of the first photoresist layer and its developing provides the first photoresist layer with an opening for electroplating the second pole tip of the second pole piece layer. Since the first photoresist layer is significantly thinner, penetration of light during the light exposure step of the first photoresist layer has less dispersion and more accurately defines the width and location of the first and second side edges of the second pole tip which determines the track width of the write head.
Abstract:
The invention provides a compact optical circulator with three ports positioning between a dual-core collimator and a single-core collimator. The inventive circulator has a propagation director to couple a light from the dual-core collimator to one port of the circulator and another light form the other port of the circulator to the dual-core collimator. The invention further provides a compact optical circulator with three ports having a reflective compensator. The reflective compensator compensates the optical path length of two polarized beams. Furthermore, the invention eliminates the polarization mode dispersion by utilizing a reflective compensator. As well, the inventive circulator forgoes use of the reciprocal polarizing-rotating unit, thus reducing production costs.
Abstract:
The invention provides an optical circulator that comprises three ports with the property that light entered through the nth port is output through the (n+1)th port. It can be applied to optical fiber transmission of optical signals. It uses a reflector to make a two-core fiber collimator to be a first port and a second port of the optical circulator so as to minimize the optical circulator volume and to simplify the assembly procedure. A reciprocal crystal and a non-reciprocal crystal are combined to form an optical polarization controller to conquer such technical problems as the conjugate angle of the two-core collimator and the minimal polarization mode dispersion. In particular, the corresponding relation between the Faraday rotator and the birefringent crystal optical axis can be utilized to remove half-wave plates used in ordinary optical circulators, thus lowering manufacturing costs and complexities.
Abstract:
The invention discloses a transgenic method for producing fruit with diminished or very little seeds or fruits with reduced seed number. It involves the temporal expression of a cytotoxic gene or combination of genes targeted toward arresting seed development at a time sufficiently after pollination that fruit development and maturation is normal while early enough in seed development that seed maturation per se is minimized. The invention also includes transgenic constructs, vectors, and methods for production of the fruit with diminished or very little seed bearing plants.
Abstract:
In one embodiment, systems and methods of operating a SOVA system is disclosed that comprises determining the start and stop values for a trellis tree and using the start and stop values to determine the initial states of a plurality of branches within the trellis tree.
Abstract:
Disclosed is a method of treating a bodily lumen with a stent, the method comprising: disposing a stent within a bodily lumen, the stent comprising a plurality of deformable struts that are substantially circumferentially aligned and are configured to selectively deform in a circumferential direction in localized regions in the struts upon application of an outward radial force; and expanding the stent by applying the outward radial force, wherein the outward radial force causes selective deformation of the deformable struts in a localized region in the struts.
Abstract:
A method of crimping a stent on a balloon of a catheter assembly is provided. A polymeric stent is disposed over a balloon in an inflated configuration. The stent is crimped over the inflated balloon to a reduced crimped configuration so that the stent is secured onto the balloon. The balloon wall membrane is wedged or pinched between the strut elements of the stent for increasing the retention of the stent on the balloon.