Abstract:
Système de traitement ou d'analyse optique s'utilisant, par exemple, dans l'analyse de taches microscopiques de matériaux au moyen de leur effet exercé sur un faisceau lumineux polarisé très fin (par exemple FPIA). Dans l'analyse de taches multiples, les échantillons de taches sont disposés sur un substrat en fonction d'un rapport prédéterminé avec une configuration optique, des barres, des chevrons, etc. Le substrat (1) est monté dans le trajet du faisceau fixe et focalisé avec trois degrés de liberté de déplacement. Une caméra vidéo (9) enregistre avec précision la configuration optique et commande le montage du substrat, de façon à positionner une tache d'échantillon sélectionnée au niveau du foyer du faisceau. Ceci permet de réaliser des analyses d'échantillons multiples et rapides.
Abstract:
An automatic structure analyzing/processing apparatus for surface structure of material includes a structure observing device (7) for observing structure of a surface of material to produce an electrical image signal thereof, a sample stage (4) disposed opposite to the observing means, an image processing device (8) for converting the image signal from the structure observing device to digital signal and expanding or contracting a desired image reproduced from a memory means or combining a plurality of images reproduced from the memory means to produce an image signal, the memory device storing the digital signal processed by the image processing device, and a display device (9) for displaying the image signal produced from the image processing device as an image, whereby the structure of the surface of material is stored in the memory as the image and examination of the structure can be made readily in a short time.
Abstract:
Analyte arrays such as solutes in a slab-shaped gel following electrophoresis, and particularly arrays that are in excess of 3cm square and up to 25cm square and higher, are imaged at distances of 5cm or less by either forming sub- images of the entire array and stitching together the sub-images by computer-based stitching technology, or by using an array of thin-film photoresponsive elements that is coextensive with the analyte array to form a single image of the array.
Abstract:
A surface scanning wafer inspection system with independently adjustable scan pitch and associated methods of operation are presented. The scan pitch may be adjusted independently from an illumination area on the surface of a wafer. In some embodiments, scan pitch is adjusted while the illumination area remains constant. For example, defect sensitivity is adjusted by adjusting the rate of translation of a wafer relative to the rate of rotation of the wafer without additional optical adjustments. In some examples, the scan pitch is adjusted to achieve a desired defect sensitivity over an entire wafer. In other examples, the scan pitch is adjusted during wafer inspection to optimize defect sensitivity and throughput. In other examples, the scan pitch is adjusted to maximize defect sensitivity within the damage limit of a wafer under inspection.
Abstract:
A surface scanning wafer inspection system with independently adjustable scan pitch and associated methods of operation are presented. The scan pitch may be adjusted independently from an illumination area on the surface of a wafer. In some embodiments, scan pitch is adjusted while the illumination area remains constant. For example, defect sensitivity is adjusted by adjusting the rate of translation of a wafer relative to the rate of rotation of the wafer without additional optical adjustments. In some examples, the scan pitch is adjusted to achieve a desired defect sensitivity over an entire wafer. In other examples, the scan pitch is adjusted during wafer inspection to optimize defect sensitivity and throughput. In other examples, the scan pitch is adjusted to maximize defect sensitivity within the damage limit of a wafer under inspection.
Abstract:
Methods, apparatus (100), and computer program products for determining lifetimes and distribution of fluorophores (102) embedded in samples (104). Fluorophores are placed into the sample, light from a source (110) selected to excite the fluorophores illuminates the sample, light emitted from the excited fluorophores is detected by a device (138), and a time-domain analysis is performed on the detected emitted light to determine a three-dimensional distribution of the fluorophores in the sample.
Abstract:
A scanning system includes a cable take-up mechanism that uses a series of pulleys that determine the bend diameters of a scanning system. The mechanism is particularly suited for a spectrometric, e.g., infrared, scanning system where moving scanner or sensor head essentially houses only the optical elements while essentially of all the other electronic and optical components associated with the measurement are housed in an easily accessible compartment that is remote from the moving scanner head. Light is transmitted through optical fiber cables. The cable take-up mechanism maintains the fiber optic cable at essentially constant total bend length and bend diameter thereby minimizing any dynamic changes to spectral bend losses as the optical head is scanned. The light weight construction of the sensor head further reduces vibrations associated with the moving scanner head.
Abstract:
Verfahren zur automatisierten Erkennung, spektroskopischen Analyse und Identifizierung von Partikeln, insbesondere partikulären Verunreinigungen, bei dem ein Laserstrahl über die Oberfläche eines Probenträgers, auf dem Partikel abgeschieden wurden, gescannt und die Streulichtintensität kontinuierlich gemessen wird, wobei für die spektroskopische Analyse und Identifizierung der Partikel nur partikel- und/oder größensensitives Streulicht in einem definierten Winkelbereich relativ zur Trägeroberfläche detektiert wird.
Abstract:
According to a method for cavity enhanced microscopy, a sample is arranged on a sample carrier of an optical cavity, which is formed by a pair of opposing mirrors. A description defining a lateral motion of the sample during a predefined time interval and a variation of the cavity length during the time interval in a temporally synchronized manner is stored and an actuator system is triggered to move the sample carrier and/or at least one mirror of the pair of mirrors to effect the lateral motion of the sample with respect to the cavity and the variation of the cavity length according to the description. Light is introduced into the cavity and transmitted portions and/or reflected portions and/or scattered portions and/or emitted portions are detected to generate a sensor dataset.