Abstract: A disposable micro-prism test chip for surface plasmon resonance measurement comprises a micro-tray and a micro-prism mounted on the micro-tray. The micro-tray and the micro-prism form at least one cell for providing a fluid dielectric medium for measurement. The disposable micro-prism test chip also comprises a thin metal layer coated on the surface of the micro-prism in the formed cell between the fluid dielectric medium and the micro-prism. The micro-tray may have at least one through window for forming the at least one cell. The micro-tray may also have a half-through cavity facing the micro-prism. The disposable micro-prism test chip is disposed after at least one use. The micro-prism may be fabricated by pulling a heated preform, where the preform has the same cross-section as that of the pulled micro-prism.

Abstract: A surface plasmon resonance biosensor comprises: a prism, an incident light incident to a side of the prism and reflected at the side of the prism, the incident light comprising a first incident light having a first incident angle and a second incident light having a second incident angle, and a detector comprising pixels for detecting the incident light reflected at the side of the prism, where positions of pixels of the detector correspond to incident angles of the incident light, and where positions of pixels of the detector are calibrated by at least the first incident light having the first incident angle and the second incident light having the second incident angle.

Abstract: A disposable micro-prism test chip for surface plasmon resonance measurement comprises a micro-tray and a micro-prism mounted on the micro-tray. The micro-tray and the micro-prism form at least one cell for providing a fluid dielectric medium for measurement. The disposable micro-prism test chip also comprises a thin metal layer coated on the surface of the micro-prism in the formed cell between the fluid dielectric medium and the micro-prism. The micro-tray may have at least one through window for forming the at least one cell. The micro-tray may also have a half-through cavity facing the micro-prism. The disposable micro-prism test chip is disposed after at least one use. The micro-prism may be fabricated by pulling a heated preform, where the preform has the same cross-section as that of the pulled micro-prism.

Abstract: A method and apparatus for passively aligning microlenses and other optical elements and devices is disclosed herein. The method taught herein is particularly well suited to effect the passive alignment of cylindrical microlenses with other elements or devices, such as laser diodes. Cylindrical microlens structures formed in accordance with the principles of the present invention use a base substrate having one or more alignment sites. The alignment sites being formed using wafer scale fabrication techniques are formed with a high degree of precision, such that cylindrical microlenses fitted into the alignment sites are aligned with respect to each other and are positioned a proper optical distance from each other. These microlens structures can be constructed individually or constructed en masse enabling mass production of the microlens structures. Moreover, the microlens structures can be passively aligned with other optical elements.

Abstract: Catalysts having as their active component sulfides of vanadium, molybdenum and tungsten are contacted with ammonia or with an amine which in aqueous solution has a basic ionization constant greater than that of ammonium hydroxide to suppress deactivation of the catalysts by exposure to the atmosphere.