H01J2237/2855

Sample chamber device for electron microscope, and electron microscope comprising same

A vacuum sample chamber for a particle and optical device includes on one surface thereof, an aperture through which a particle beam to be focused along an optical axis of particles such as electrons, ions and neutral particles is incident; and on the opposite surface thereof, a detachable sample holder through which light penetrates, thereby enabling a sample to be observed and analyzed by means of the particle beam and light. A sample chamber is capable of reducing observation time by maintaining a vacuum therein even when a sample is put into or taken out from a sample chamber of an electron microscope or focused ion beam observation equipment, and capable of obtaining an optical image on the outside thereof without inserting a light source or an optical barrel into the sample chamber. A light-electron fusion microscope comprising the sample chamber.

SYSTEMS AND METHODS FOR USING MULTIMODAL IMAGING TO DETERMINE STRUCTURE AND ATOMIC COMPOSITION OF SPECIMENS
20190074160 · 2019-03-07 ·

An imaging system that selectively alternates between a first, non-destructive imaging mode and a second, destructive imaging mode to analyze a specimen so as to determine an atomic structure and composition of the specimen is provided. The field ionization mode can be used to acquire first images of ionized atoms of an imaging gas present in a chamber having the specimen disposed therein, and the field evaporation mode can be used to acquire second images of ionized specimen atoms evaporated from a surface of the specimen with the imaging gas remaining in the chamber. The first and second image data can be analyzed in real time, during the specimen analysis, and results can be used to dynamically adjust operating parameters of the imaging system.

Inspection device

An inspection device for inspecting a surface of an inspection object using a beam includes a beam generator capable of generating one of either charge particles or an electromagnetic wave as a beam, a primary optical system capable of guiding and irradiating the beam to the inspection object supported within a working chamber, a secondary optical system capable of including a first movable numerical aperture and a first detector which detects secondary charge particles generated from the inspection object, the secondary charge particles passing through the first movable numerical aperture, an image processing system capable of forming an image based on the secondary charge particles detected by the first detector; and a second detector arranged between the first movable numerical aperture and the first detector and which detects a location and shape at a cross over location of the secondary charge particles generated from the inspection object.

DETECTOR SUPPLEMENT DEVICE FOR SPECTROSCOPY SETUP

A detector supplement device for integration in a spectroscopy setup with the spectroscopy setup including a vacuum chamber, a light source, a sample irradiating a reflected photon beam and a charged particle beam in the same direction of propagation into a radiation detector which is able to detect ultrafast electric currents originating from charged particles. The detector supplement device includes a Rogowski coil placeable inside the vacuum chamber between the sample and radiation detector. The charged particle beam is guided through the hollow core of the Rogowski coil allowing synchronized measurements of electrical currents due to the charged particle beam correlated to the reflected photon beam, while irradiation of the reflected photon beam and the charged particle beam takes place in the same direction of propagation.

Systems and methods for using multimodal imaging to determine structure and atomic composition of specimens
10121636 · 2018-11-06 · ·

An imaging system that selectively alternates a first, non-destructive imaging mode and a second, destructive imaging mode to analyze a specimen so as to determine an atomic structure and composition of the specimen is provided. The field ionization mode can be used to acquire first images of ionized atoms of an imaging gas present in a chamber having the specimen disposed therein, and the field evaporation mode can be used to acquire second images of ionized specimen atoms evaporated from a surface of the specimen with the imaging gas remaining in the chamber. The first and second image data can be analyzed in real time, during the specimen analysis, and results can be used to dynamically adjust operating parameters of the imaging system.

SAMPLE CHAMBER DEVICE FOR ELECTRON MICROSCOPE, AND ELECTRON MICROSCOPE COMPRISING SAME

A vacuum sample chamber for a particle and optical device includes on one surface thereof, an aperture through which a particle beam to be focused along an optical axis of particles such as electrons, ions and neutral particles is incident; and on the opposite surface thereof, a detachable sample holder through which light penetrates, thereby enabling a sample to be observed and analyzed by means of the particle beam and light. A sample chamber is capable of reducing observation time by maintaining a vacuum therein even when a sample is put into or taken out from a sample chamber of an electron microscope or focused ion beam observation equipment, and capable of obtaining an optical image on the outside thereof without inserting a light source or an optical barrel into the sample chamber. A light-electron fusion microscope comprising the sample chamber.

FIVE-DIMENSIONAL ELECTRON MICROSCOPE AND ANALYSIS METHOD THEREFOR
20240395499 · 2024-11-28 ·

Since it takes time of seconds to minutes to obtain a single image, time-division observation of a sample cannot be performed for events on a time scale less than the time it takes to obtain the single image of the sample. A five-dimensional electron microscope includes: a photocathode 9 that is irradiated with first laser pulses and generates electron pulses; a sample 15 that is irradiated with the electron pulses and second laser pulses, and becomes excited; a pixel camera 18 that detects the electron pulses that have passed through the sample; and a processing unit that processes an output of the pixel camera, and the electron pulses are delayed by a delay time from the second laser pulses by a delay generator 25.

Systems and Methods for Using Multimodal Imaging to Determine Structure and Atomic Composition of Specimens
20170140896 · 2017-05-18 ·

An imaging system that selectively alternates a first, non-destructive imaging mode and a second, destructive imaging mode to analyze a specimen so as to determine an atomic structure and composition of the specimen is provided. The field ionization mode can be used to acquire first images of ionized atoms of an imaging gas present in a chamber having the specimen disposed therein, and the field evaporation mode can be used to acquire second images of ionized specimen atoms evaporated from a surface of the specimen with the imaging gas remaining in the chamber. The first and second image data can be analyzed in real time, during the specimen analysis, and results can be used to dynamically adjust operating parameters of the imaging system.

Near-field optical transmission electron emission microscope
09653258 · 2017-05-16 ·

The Near-field Optical Transmission Electron Emission Microscope involves the combination, in one instrument, of optical imaging in the near-field regime or close to it (in respect to the transmission electromagnetic radiation when the wavelength exceeds the desired lateral resolution) and the secondary electron imaging of EEM microscope (Cathode lens objective based Emission Electron Microscopy). These two microscopic techniques are combined by the application of the photon-electron converter, which converts the optical, transmission image of the object (illuminated by the penetrating electromagnetic radiation) to the correlated photoelectron image, by means of a matrix of one-way closed channels (capillaries). The closed, smooth front face of the converter (comprising channel-bottoms) remains in contact with the object of imaging, whereas its opposite, opened face (consisting of an array (matrix) of channel openings) is exposed to vacuum and emits the secondary electrons.