摘要:
The present application discloses a novel chirped pulse amplification (CPA) fiber laser that has easily reconfigured output repetition rate and energy, and high spatial and temporal quality.
摘要:
The present application discloses a novel chirped pulse amplification (CPA) fiber laser that has easily reconfigured output repetition rate and energy, and high spatial and temporal quality.
摘要:
Methods are disclosed of fabricating an optical assembly. An active optical element is disposed near or on a first surface of a slab of optical material. A passive optical element is formed on a second surface of the slab, with the second surface being substantially parallel to the first surface. An optical axis of the passive optical element is aligned with an optical path between the passive optical element and an active region of the active optical element using a lithographic alignment process.
摘要:
A waveguide is provided including a first photon propagating material having a first index of refraction (n1) and having a pinch disposed therein, the pinch having a second index of refraction (n1′); and a second photon propagating material disposed in optical communication with the first photon propagating material and having a third index of refraction (n2); wherein n1
摘要:
A method of fabricating a detector, the method including forming an island of detector core material on a substrate, the island having a horizontally oriented top end, a vertically oriented first sidewall, and a vertically oriented second sidewall that is opposite said first sidewall; implanting a first dopant into the first sidewall to form a first conductive region that has a top end that is part of the top end of the island; implanting a second dopant into the second sidewall to form a second conductive region that has a top end that is part of the top end of the island; fabricating a first electrical connection to the top end of the first conductive region; and fabricating a second electrical connection to the top end of the second conductive region.
摘要:
A method of fabricating a detector, the method including forming an island of detector core material on a substrate, the island having a horizontally oriented top end, a vertically oriented first sidewall, and a vertically oriented second sidewall that is opposite said first sidewall; implanting a first dopant into the first sidewall to form a first conductive region that has a top end that is part of the top end of the island; implanting a second dopant into the second sidewall to form a second conductive region that has a top end that is part of the top end of the island; fabricating a first electrical connection to the top end of the first conductive region; and fabricating a second electrical connection to the top end of the second conductive region.
摘要:
A planar integrated circuit includes a semiconductor substrate having a substrate surface and a trench in the substrate, a waveguide medium in the trench having a top surface and a light propagation axis, the trench having a sufficient depth for the waveguide medium to be at or below said substrate surface, and at least one Schottky barrier electrode formed on the top surface of said waveguide medium and defining a Schottky barrier detector consisting of the electrode and the portion of the waveguide medium underlying the Schottky barrier electrode, at least the underlying portion of the waveguide medium being a semiconductor and defining an electrode-semiconductor interface parallel to the light propagation axis so that light of a predetermined wavelength from said waveguide medium propagates along the interface as a plasmon-polariton wave.
摘要:
One embodiment of the present invention provides a system that facilitates an “activity watch” operation on a financial account. During operation, the system receives records for transactions associated with the financial account. These records are received at a third-party server from a financial institution which maintains the financial account, wherein the third-party server is independent from the financial institution. Next, the system applies one or more rules to the records to determine whether an alert should be triggered. If a rule indicates that an alert should be triggered, the system sends the alert to a user who has an interest in the financial account.
摘要:
A semiconductor laser having an optical volume of between about 0.1×λ3 to about 30×λ3, where λ is the wavelength of light emitted by the semiconductor laser. The semiconductor laser comprises an optical cavity having a proximal and distal end; a first reflector disposed at the proximal end; a second reflector disposed at the distal end, said optical cavity being defined by the first and second reflectors; an active region disposed transversely with respect to the optical cavity, wherein the semiconductor laser produces an axial emission of light from the distal end of the optical cavity.
摘要:
An optical circuit including a semiconductor substrate; an optical waveguide formed in or on the substrate; and an optical detector formed in or on the semiconductor substrate, wherein the optical detector is aligned with the optical waveguide so as to receive an optical signal from the optical waveguide during operation, and wherein the optical detector has: a first electrode; a second electrode; and an intermediate layer between the first and second electrodes, the intermediate layer being made of a semiconductor material characterized by a conduction band, a valence band, and deep level energy states introduced between the conduction and valence bands.