摘要:
A microscope capable of being shaped into a beam with complete hollow shape by removing the disorder of the wavefront to the erase light, particularly, and capable of improving the spatial resolution by inducing a super-resolution near the limit, is provided. In the microscope, wherein a first light to excite a molecule from a ground-state to first electron excited state or a second light to excite the molecule from the first electron excited state to the second electron excited state with higher energy level, for a sample 56 including the molecule with three electronic states including at least a ground-state, are spatial phase-modulated into the prescribed beam shape, and parts of these first light and the second light are overlapped and focused to detect luminescence from the sample 56, a wavefront compensation means 61 is provided in the optical path of the first light and/or in the optical path of the second light, and the wavefront aberration caused in the first light and/or in the second light, is removed by the wavefront compensation means 61.
摘要:
A three-dimensional analyzing device includes a first beam source for generating a first beam, a second beam source for generating a second beam, an optical system for spatially overlapping the first and second beams at least partly and irradiating the beams onto a specimen to three-dimensionally confine a photoactive region in a specimen, and a photo acceptance element for accepting a response light emitted from the photoactive region. Preferably, the device further includes an operation unit for calculating a correlation function of a response light in the time domain based on the output of the photo acceptance element to analyze a desired physical value of the specimen.
摘要:
A three-dimensional analyzing device includes a first beam source for generating a first beam, a second beam source for generating a second beam, an optical system for spatially overlapping the first and second beams at least partly and irradiating the beams onto a specimen to three-dimensionally confine a photoactive region in a specimen, and a photo acceptance element for accepting a response light emitted from the photoactive region. Preferably, the device further includes an operation unit for calculating a correlation function of a response light in the time domain based on the output of the photo acceptance element to analyze a desired physical value of the specimen.
摘要:
[Task] To provide a super-resolution microscope whereby the light source of pump light and erase light can be selected easily and a super-resolution can be reliably achieved through a simple and inexpensive arrangement. [Solution of the Task] A super-resolution microscope includes an optical system (3, 4, 9) for combining a part of a first coherent light from a first light source (2) and a part of a second coherent light from a second light source (1) and focusing the coherent lights onto a sample (10), scanning means (6, 7) for scanning the coherent lights, and detecting means (16) for detecting an optical response signal from the sample (10). The microscope is configured so as to satisfy the following conditions: σ01Ipτ≦1, and 0.65(λe/λp)≦τσdipIe where λp is the wavelength of the first coherent light, λe is the wavelength of the second coherent light, τ is the excited lifetime in which the molecule is excited by the first coherent light from the ground state to the first electron-excited state, Ip is the maximum photon flux on the sample surface of the first coherent light, Ie is the maximum photon flux on the sample surface of the second coherent light, σ01, is the absorption cross-sectional area when the molecule is exited from the ground state to the first electron-excited state, and σdip is the fluorescence suppression cross-sectional area.
摘要:
A microscope includes a first light source to emit a first light to excite a molecule of a sample to a higher energy level vibration state which belongs to a lowest energy level electron state from the ground state, a second light source to emit a second light source to excite the molecule to a higher energy level quantum state from the higher energy vibration state, an optical system to overlap the first light and the second light partially on the sample, and an optical detector to detect a given fluorescence from the irradiated region of the first light and the second light on the sample.
摘要:
A super-resolution microscope includes an optical system for combining a part of a first coherent light from a first light source and a part of a second coherent light from a second light source and focusing the coherent lights onto a sample, scanning , unit for scanning the coherent lights, and a detecting unit for detecting an optical response signal from the sample. The microscope is configured so as to satisfy the following conditions: σ01Ipτ≦1, and 0.65(λe/λp)≦τσdipIe.
摘要:
A high-accuracy multi-wavelength optical microscope for providing a satisfactory contrast of image and much information about a sample. The microscope includes a plurality of light sources, a wavelength varietor independently varying the wavelength of the individual light sources, and polarization plane rotators on the optical path for each light source.
摘要:
A microscope system comprising an adjusted specimen and a microscope body, wherein the adjusted specimen is dyed with molecule which has three electronic states including at least a ground state and in which an excited wavelength band from the first electron excited state to the second electron excited state overlaps a fluorescent wavelength band upon deexcitation through a fluorescence process from the first electron excited state to a vibrational level in the ground state. There is provided a novel microscope system which is enabled to condense an erase light for exciting a molecule in the first electron excited state to the second electron excited state in an excellent beam profile by using a simple, compact optical system and which has high stability and operability and an excellent super-resolution.
摘要:
A multi-input multi-output orthogonal frequency division multiplexing (MIMO-OFDM) transceiving system is provided, in which an MIMO-OFDM receiver feeds back ordering information, such as the order of power intensities of reception signals of a plurality of reception antennas, to an MIMO-OFDM transmitter. The MIMO-OFDM transmitter arranges subcarriers, to which data symbols have been allocated, so that the subcarriers respectively correspond to a plurality of transmission antennas, according to the fed-back information. Thus, a specific substream can be transmitted via a transmission antenna having the greatest channel gain. Consequently, the probability of properly recovering the specific substream is greatly increased.
摘要:
Provided are a radio transmission apparatus and method, a radio receiving apparatus and method, a transmitting and receiving method, and a recording medium for use in a mobile communication system according to an Orthogonal Frequency Division Multiplexing-Code Division Multiplexing (OFDM-CDM)-based transmission diversity method. The radio transmitter codes transmission data into a plurality of time-space codes, generates spread signals by respectively mapping a plurality of spread codes and the time-space codes, and transmits the spread signals via a plurality of transmission antennae, each of the spread codes containing a combination of codes whose signs are alternately equal and opposite in units of specific spreading lengths. Accordingly, it is possible to transmit data without a feedback of control information from a radio receiver.