Abstract:
The invention relates to a fluorescent microscope and a respective method for obtaining super-resolution images of a sample labelled with at least one type fluorescent label by combining localization microscopy and structured illumination microscopy. In an aspect, the fluorescent microscope comprises one or more light sources and an illumination system having a structured illumination path, in which a pattern generation system is positioned, for illuminating the sample with structured illumination light and a localization illumination path for illuminating the sample with localization illumination light. A switching mechanism is configured to switch between a first, a second and/or a third mode, wherein in the first mode at least a portion of the light emitted from the one or more light sources propagates through one of the illumination paths; in the second mode at least a portion of the light emitted from the one or more light sources propagates through the other one of the illumination paths; and in the third mode at least a portion of the light emitted from one or more of the light sources propagates through one illumination path while simultaneously at least another portion of the light emitted from one or more of the light sources propagates through the other illumination path. At least one image detector positioned in an optical detection path, configured to detect at least a portion of fluorescent light emitted from fluorescent molecules of the illuminated sample. Another aspect concerns a method for obtaining super-resolution image data of a sample labeled with at least one type of fluorescent label comprising illuminating the sample with localization illumination light and with structured illumination light; detecting at least a portion of the fluorescent light emitted from the excited fluorescent molecules of the at least one fluorescent label, thereby obtaining at least one image of the illuminated sample; and processing the obtained at least one image of the sample image to obtain super-resolution image data.
Abstract:
A method of imaging a fluorescent sample comprising the steps of: scanning fluorescent points (9, 11) of said sample using scanner means (10, 8A, 88), thereby obtaining scanned fluorescent points; imaging said scanned fluorescent points on display means (12), said scanning comprising: predefining a scan field (2) for said sample, which comprises a set of scannable fluorescent points (9, 11); sequentially irradiating, using irradiation means (4, 8A, 8B), at least one first subset of points of said set of points and at least one second subset of said set of points, which complements said first subset with respect to said set of points. The first and second subsets can be irradiated at different focal irradiation distances (PI, P2).
Abstract:
In one embodiment, a method includes instructing a pattern generator to provide an excitation pattern to a sample under test, and controlling a movable mechanism that receives an emission pattern from the sample under test responsive to the excitation pattern. The controlling includes causing the movable mechanism to sweep a representation of the emission pattern along a path, thereby creating at least one streak, and synchronizing the motion of the movable mechanism with the frame rate of an imaging device, such that a full sweep of the representation of the emission pattern along the path corresponds to approximately one frame of the imaging device. The variable intensity of each streak represents a corresponding time varying intensity of a portion of the emission pattern. The varying intensity of a portion of the emission pattern may be captured with sub-millisecond resolution.
Abstract:
An apparatus includes a light source configured to emit an electromagnetic wave; a spatial light modulator configured to modulate a wavefront of the electromagnetic wave to irradiate a sample; a plate with an aperture; a lens unit configured to set a focal point in the sample; a detector configured to detect light coming from the focal point of the sample through the aperture; and a controller configured to control the spatial light modulator based on the detected light by the detector.
Abstract:
A swept light source apparatus in which oscillation wavelength is continuously changeable is provided. The apparatus includes, inside a resonator (103, 109), an optical amplification medium (101) that amplifies light, a first device (106) configured to disperse light emitted from the optical amplification medium and thus produce beams having different wavelengths, a second device (107) functioning as a non- focusing optical element and configured to collimate the beams having different wavelengths resulting from the dispersion by the first device, and a selecting device (108) configured to select a beam having a specific wavelength from among the beams collimated by the second device. The beam having the specific wavelength selected by the selecting device is fed back to the optical amplification medium. The first and second device may be diffraction gratings or acousto - optical devices. The selcting device may include metal-foil ribbons (301, 302) or an acousto - optical device (108).
Abstract:
A system and method for optical data acquisition of an illuminated turbid medium object, the system comprises a variable structured light detector and a controller. The light detector is adapted to retrieve light from a plurality of detection points of an output surface of the illuminated turbid medium object with a plurality of detection patterns. The controller is adapted to control the variable structured light detector for the variable structured light detector to use a detection pattern corresponding to an illumination pattern of the illuminated turbid medium object. The light detector is further adapted to optically measure a combination of retrieved light from the plurality of detection points as an optical measurement. The controller is further adapted to store an illumination pattern identifier indicative of the illumination pattern, a detection pattern identifier indicative of the detection pattern and the corresponding optical measurement.
Abstract:
Disclosed are systems, apparatus, methods and devices, including a method that includes generating two or more sequential surface plasmon interference patterns, at least one of the two or more sequential surface plasmon interference patterns being different from another of the two or more sequential surface plasmon interference patterns, and capturing respective images of a specimen resulting from the interference patterns. Also disclosed is a method that includes generating two or more sequential optical interference patterns, at least one of the two or more sequential optical interference patterns being different from another of the interference patterns, and removing from each of the generated interference patterns, using a beam stopper, a corresponding zero-order diffraction light component included in the respective generated patterns to obtain resultant corresponding two or more sequential optical interference patterns, directed at a specimen, with missing respective zero-order light components.
Abstract:
The present invention concerns a device able of illuminating an object on several wavelengths at the same time and of detecting the spectrum of the fluorescence emitted by the object with high spectral resolution and wide bandwidth.