摘要:
The present invention relates to the field of optics, and, in particular to a system and method for determining the phase of a wave. The system and method of the present invention calculates the phase of any type of wave based on the intensity of the wave. In particular, the system and method provides a means for finding the ray mapping between two surfaces in space from information on the wave's intensity measured at those two surfaces.
摘要:
In a first aspect, a method of fabricating an EUV light source mirror is disclosed which may comprise the acts/steps of providing a plurality of discrete substrates; coating each substrate with a respective multilayer coating; securing the coated substrates in an arrangement wherein each coated substrate is oriented to a common focal point; and thereafter polishing at least one of the multilayer coatings. In another aspect, an optic for use with EUV light is disclosed which may comprise a substrate; a smoothing layer selected from the group of materials consisting of Si, C, Si 3 N 4 , B 4 C, SiC and Cr, the smoothing layer material being deposited using highly energetic deposition conditions ^nd a multilayer dielectric coating. In another aspect, a corrosion resistant, multilayer coating for an EUV mirror may comprise alternating layers of Si and a compound material having nitrogen and a 5th period transition metal.
摘要:
A method for generating EUV light is disclosed which may include the acts / steps of providing a source material; generating a plurality of source material droplets; simultaneously irradiating a plurality of source material droplets with a first light pulse to create irradiated source material; and thereafter exposing the irradiated source material to a second light pulse to generate EUV light, e.g. by generating a plasma of the source material. In another aspect, an EUV light source may include a droplet generator delivering a plurality of source material droplets to a target volume; a source of a first light pulse for simultaneously irradiating a plurality of droplets in the target volume to produce an irradiated source material; and a source of a second light pulse for exposing the irradiated source material to generate EUV light. The droplet generator may comprise a non-modulating droplet generator and may comprise a multi-orifice nozzle.
摘要:
Beschrieben wird eine Vorrichtung zum Abgeben von Licht mit bestimmter Intensität mit einer Lichtquelle, mit einem der Lichtquelle zugeordneten Lichtübertrager, in welchen die Lichtquelle Licht einstrahlt, und mit wenigstens einem Fenster, durch welches ein Teil des in den Lichtübertrager eingestrahlten Lichtes wieder austritt. Erfindungsgemäß ist vorgesehen, dass der Lichtübertrager aus einem das eingestrahlte Licht streuenden Material besteht.
摘要:
A method for optimizing alignment performance in a fleet of exposure systems involves characterizing each exposure system in a fleet of exposure systems to generate a set of distinctive distortion profiles associated with each exposure system. The set of distinctive distortion profiles are stored in a database. A wafer having reference pattern formed thereon is provided for further pattern fabrication and an exposure system is selected from the fleet to fabricate a next layer on the wafer. Linear and higher order parameters of the selected exposure system are adjusted using the distinctive distortion profiles to model the distortion of the reference pattern. Once the exposure system is adjusted, it is used to form a lithographic pattern on the wafer.
摘要:
An object is placed at a particular distance away from the nonreflecting side of a mirror, such that the gravitational force of the object affects the mirror. A laser is then pointed at the opposite, reflecting side of the mirror, thereby itself reflecting off the mirror and going back in to the cavity of the laser, creating a mode-hopping effect. The mirror will be affected by three forces, the force of a spring (F s ), the force of a modulating signal (F Ms ). created by an electro mechanical device attached to the mirror, and the gravitational force of objects as they approach and recede away from the mirror.
摘要:
The present invention relates to a method for determining an effective dose of monochromatic or polychromatic light from one or more light sources to inactivete microorganisms present in a biological fluid, preferably a non-trannsparent fluid. Moreover, there is provided a method for the inactivation of microorganism in a biological fluid in a flow-through-reactor. Moreover, the invention advantageously provides a flow-through-reactor with one or more thermostated light sources. The invention further provides a method of controlling the light sum dose of monochromatic or polychromatic light emitted from one or more light sources to effectively inactivate microorganisms present in a biological fluid in a batch reactor.
摘要:
A wavefront sensor (100) enhances calibration of a laser ablation system, such as a laser eye surgery system, by measuring one or more characteristics of an ablated test surface (110). Typically, light (120) is passed through the ablated test surface (110), and the light is analyzed to determine the test surface characteristics. In some embodiments, the ablated test surface (110) is positioned along a treatment plane. In some embodiments, light is passed through a wavefront sensor (100), such as a Hartmann-Shack sensor (1105), to convert the light into electrical signals. A processor (108) then converts the electrical signals into data, such as surface maps showing high-order aberrations and/or artifacts on the test surface, refractive power measurements, shape measurements, and the like. Generated data may then be used to calibrate a laser surgery system.
摘要:
A high finesse optical resonator is used to store optical pulses of a mode-locked laser. The mode-locked laser is frequency stabilized by monitoring an optical attribute of the high finesse optical resonator indicative of a difference between a center frequency of the mode-locked laser and a resonant frequency of the high finesse optical resonator. In one embodiment FM sideband modulation is used to stabilize the mode-locked laser pulses.
摘要:
The optical system of the present invention includes a lens system assembly, a spectral filter material and a pixel array configured such that small, distant, light sources can be reliably detected. The optical system of the present invention provides accurate measurement of the brightness of the detected light sources and identification of the peak wavelength and dominant wavelength of the detected light sources. Use of the optical system of the present invention provides the ability to distinguish headlights of oncoming vehicles and taillights of leading vehicles from one another, as well as, from other light sources.