Abstract:
Apparatus, method and storage medium which can provide at least one first electro-magnetic radiation to a sample and at least one second electro-magnetic radiation to a reference, such that the first and/or second electro-magnetic radiations have a spectrum which changes over time. In addition, a first polarization component of at least one third radiation associated with the first radiation can be combined with a second polarization component of at least one fourth radiation associated with the second radiation with one another. The first and second polarizations may be specifically controlled to be at least approximately orthogonal to one another.
Abstract:
Apparatus, method and storage medium which can provide at least one first electro-magnetic radiation to a sample 130 and at least one second electro-magnetic radiation to a reference, such that the first and/or second electro-magnetic radiations have a spectrum which changes over time. In addition, a first polarization component of at least one third radiation 405 associated with the first radiation can be combined with a second polarization component of at least one fourth radiation 400 associated with the second radiation with one another. The first and second polarizations may be specifically controlled to be at least approximately orthogonal to one another. Apparatus and method are used for quadrature detection of swept source Fourier domain optical coherence tomography.
Abstract:
An imaging system includes: an object wavefront source (12) and an optical microscope objective (4) all positioned to direct an object wavefront onto an area of a vibrating subject (6) surface encompassed by a field of view of the microscope objective (4), and to direct a modulated object wavefront reflected from the encompassed surface area through a photorefractive material (XTAL); and a reference wavefront source (12) and at least one phase modulator (MOD) all positioned to direct a reference wavefront through the phase modulator (MOD) and to direct a modulated reference wavefront from the phase modulator (MOD) through the photorefractive material (XTAL) to interfere with the modulated object wavefront. The photorefractive material (XTAL) has a composition and a position such that interference of the modulated object wavefront and modulated reference wavefront occurs within the photorefractive material, (XTAL) providing a full-field, real-time image signal of the encompassed surface area (6).
Abstract:
Apparatus, method and storage medium which can provide at least one first electro-magnetic radiation to a sample and at least one second electro-magnetic radiation to a reference, such that the first and/or second electro-magnetic radiations have a spectrum which changes over time. In addition, a first polarization component of at least one third radiation associated with the first radiation can be combined with a second polarization component of at least one fourth radiation associated with the second radiation with one another. The first and second polarizations may be specifically controlled to be at least approximately orthogonal to one another.
Abstract:
The interferometer 10 according to this disclosure includes: a first optical component 12 that splits each of the P polarization component and the S polarization component of the light to be measured into the first optical path R1 and the second optical path R2 and combines the light to be measured; a second optical component 13 placed in the first optical path; a third optical component 14 that splits the light to be measured into the P polarization component and the S polarization component; and a P polarization detector 11a and an S polarization detector 11b that respectively detect the P polarization component and the S polarization component split by the third optical component, wherein the second optical component has an optical surface that changes the propagation direction of the light to be measured and gives a phase difference between the P polarization component and the S polarization component.
Abstract:
Apparatus, method and storage medium which can provide at least one first electro-magnetic radiation to a sample and at least one second electromagnetic radiation to a reference, such that the first and/or second electromagnetic radiations have a spectrum which changes over time. In addition, a first polarization component of at least one third radiation associated with the first radiation can be combined with a second polarization component of at least one fourth radiation associated with the second radiation with one another. The first and second polarizations may be specifically controlled to be at least approximately orthogonal to one another.
Abstract:
An imaging system includes: an object wavefront source and an optical microscope objective all positioned to direct an object wavefront onto an area of a vibrating subject surface encompassed by a field of view of the microscope objective, and to direct a modulated object wavefront reflected from the encompassed surface area through a photorefractive material; and a reference wavefront source and at least one phase modulator all positioned to direct a reference wavefront through the phase modulator and to direct a modulated reference wavefront from the phase modulator through the photorefractive material to interfere with the modulated object wavefront. The photorefractive material has a composition and a position such that interference of the modulated object wavefront and modulated reference wavefront occurs within the photorefractive material, providing a full-field, real-time image signal of the encompassed surface area.
Abstract:
An imaging system includes: an object wavefront source and an optical microscope objective all positioned to direct an object wavefront onto an area of a vibrating subject surface encompassed by a field of view of the microscope objective, and to direct a modulated object wavefront reflected from the encompassed surface area through a photorefractive material; and a reference wavefront source and at least one phase modulator all positioned to direct a reference wavefront through the phase modulator and to direct a modulated reference wavefront from the phase modulator through the photorefractive material to interfere with the modulated object wavefront. The photorefractive material has a composition and a position such that interference of the modulated object wavefront and modulated reference wavefront occurs within the photorefractive material, providing a full-field, real-time image signal of the encompassed surface area.
Abstract:
An imaging apparatus includes a light source, a spatial light modulator, a Fourier transform optical system, a photodetector, and a control unit. The control unit sets a first region and a second region on a modulation plane of the spatial light modulator, sequentially sets a plurality of light phase modulation patterns in the first region, sequentially sets a plurality of uniform phase shifts in a region other than the first region when setting each light phase modulation pattern in the first region to acquire a light intensity value, and acquires a phase image of a region of an object corresponding to the first region using a phase shift method.
Abstract:
An interferometer system is disclosed which is configured to combine measurement light with reference light to form an optical interference pattern, where the interferometer system includes a modulator configured to repetitively introduce a sequence of phase shifts between the measurement and reference light; and a camera system positioned to measure the optical interference pattern, where the camera system is configured to separately accumulate time-integrated images of the optical interference pattern corresponding to the different phase shifts in the sequence during the repetitions of the sequence.