Abstract:
A waveguide (116) fabrication method includes depositing a photodefinable copolymer material (14) comprising methyl methacrylate, tetrafluoropropyl methacrylate, and an epoxy monomer; fixing optical elements (10, 12) relative to the copolymer material; sending light through at least one of the optical elements and copolymer material towards the other; volatilizing uncured monomer. Another waveguide (116) fabrication method includes: fixing optical elements (110, 112) relative to each other, each having an optical surface (11, 13); providing a copolymer blob (114) over the optical surfaces with sufficient surface tension to result in the copolymer blob having a curved surface (15); sending light through each of the optical elements towards the curved surface and the other; volatilizing uncured monomer. An optical path fabrication method comprises: fixing optical elements (70, 76) relative to each other, each having an optical surface (71, 77); translating and rotating a minor (78) until aligned to optimally direct light from one of the optical elements to the other; securing the aligned minor in position.
Abstract:
A waveguide (116) fabrication method includes depositing a photodefinable copolymer material (14) comprising methyl methacrylate, tetrafluoropropyl methacrylate, and an epoxy monomer; fixing optical elements (10, 12) relative to the copolymer material; sending light through at least one of the optical elements and copolymer material towards the other; volatilizing uncured monomer. Another waveguide (116) fabrication method includes: fixing optical elements (110, 112) relative to each other, each having an optical surface (11, 13); providing a copolymer blob (114) over the optical surfaces with sufficient surface tension to result in the copolymer blob having a curved surface (15); sending light through each of the optical elements towards the curved surface and the other; volatilizing uncured monomer. An optical path fabrication method comprises: fixing optical elements (70, 76) relative to each other, each having an optical surface (71, 77); translating and rotating a mirror (78) until aligned to optimally direct light from one of the optical elements to the other; securing the aligned mirror in position.
Abstract:
COMPOSITIONALLY-GRADED AND STRUCTURALLY-GRADED PHOTOVOLTAIC DEVICES AND METHODS OF FABRICATING SUCH DEVICES A semiconductor structure is described, including a semiconductor substrate (12) and a semiconductor layer (14) disposed on the semiconductor substrate (12). The semiconductor layer (14) is both compositionally graded and structurally graded. Specifically, the semiconductor layer (14) is compositionally graded through its thickness from substantially intrinsic at the interface (16) with the substrate (12) to substantially doped at an opposite surface (18). Further, the semiconductor layer (14) is structurally graded through its thickness from substantially crystalline at the interface (16) with the substrate (12) to substantially amorphous at the opposite surface (18). Related methods are also described. 22 10o"l 24 d -a a- si 14 i - a - si . . 1l 1 d - a- si2 28 j-c-s FlG.
Abstract:
A waveguide (116) fabrication method includes depositing a photodefinable copolymer material (14) comprising methyl methacrylate, tetrafluoropropyl methacrylate, and an epoxy monomer; fixing optical elements (10, 12) relative to the copolymer material; sending light through at least one of the optical elements and copolymer material towards the other; volatilizing uncured monomer. Another waveguide (116) fabrication method includes: fixing optical elements (110, 112) relative to each other, each having an optical surface (11, 13); providing a copolymer blob (114) over the optical surfaces with sufficient surface tension to result in the copolymer blob having a curved surface (15); sending light through each of the optical elements towards the curved surface and the other; volatilizing uncured monomer. An optical path fabrication method comprises: fixing optical elements (70, 76) relative to each other, each having an optical surface (71, 77); translating and rotating a mirror (78) until aligned to optimally direct light from one of the optical elements to the other; securing the aligned mirror in position.
Abstract:
Un metodo para la fabricacion de onda de guia (116) incluye depositar un material de copolimero fotodefinible (14) que comprende metacrilato de metilo, metacrilato de tetrafluoropropilo, y un monomero epoxico; fijar elementos opticos (10, 12) con relacion al material de copolimero; enviar luz a traves de al menos uno de los elementos opticos y el material de copolimero entre si; volatilizar el monomero no curado. Otro metodo para la fabricacion de onda de guia (116) incluye: fijar elementos opticos (110, 112) con relacion uno al otro, cada uno teniendo una superficie optica (11, 13); proporcionar una burbuja de copolimero (114) sobre las superficies opticas con suficiente tension de superficie para dar como resultado la burbuja de copolimero con una superficie curva (15); enviar luz a traves de cada uno de los elementos opticos hacia la superficie curva y la otra; volatilizar el monomero no curado. Un metodo para la fabricacion de trayectoria optica incluye: fijar elementos opticos (70, 76) con relacion uno al otro, cada uno teniendo una superficie optica (71, 77); transferir y hacer girar un menor (78) hasta que se alinie a la luz optimamente directa desde uno de los elementos opticos hacia el otro; asegurar el menor alineado en su lugar.
Abstract:
A magnetic resonance (MR) system and method for generating information about an object is provided. The MR system comprises at least one MR detector configured to sense a plurality of electromagnetic signals and a modulator coupled to the MR detector and configured to modulate optical signals with the electromagnetic signals to generate corresponding modulated optical signals. The MR system further comprises a resonant matching circuit configured for matching an impedance of the MR detector to an impedance of the modulator to achieve at least one of a voltage gain or a noise performance. An optical conduit coupled to the modulator is configured to transmit the modulated optical signals from within a shielded environment to outside the shielded environment. A signal detector coupled to the optical conduit is configured to convert the modulated optical signals to electrical signals.
Abstract:
A waveguide (116) fabrication method includes depositing a photodefinable copolymer material (14) comprising methyl methacrylate, tetrafluoropropyl methacrylate, and an epoxy monomer; fixing optical elements (10, 12) relativ e to the copolymer material; sending light through at least one of the optical elements and copolymer material towards the other; volatilizing uncured monomer. Another waveguide (116) fabrication method includes: fixing optical elements (110, 112) relative to each other, each having an optical surface (11, 13); providing a copolymer blob (114) over the optical surfaces with sufficient surface tension to result in the copolymer blob having a curved surface (15); sending light through each of the optical elements towards the curved surface and the other; volatilizing uncured monomer. An optical path fabrication method comprises: fixing optical elements (70, 76) relative to each other, each having an optical surface (71, 77); translating and rotatin g a minor (78) until aligned to optimally direct light from one of the optical elements to the other; securing the aligned minor in position.