Abstract: The invention discloses a method for realizing an arbitrary ultrasonic field. The method uses a pulsed laser generated by a pulsed laser machine, modulated into a specific two-dimensional or three-dimensional light field distribution by a phase-type spatial light modulator, and the specific distribution of light acts on photoacoustic media. Due to the photoacoustic effect, a sound field distribution corresponding to the light field will be generated in the photoacoustic medium. The sound field constitutes a two-dimensional or three-dimensional spatial sound source. The sound waves emitted by the sound source are transmitted through a certain distance. The expected ultrasonic field distribution can be formed on a surface or inside of samples. The invention can transform the coherent ultrasonic field distribution formed on the surface or inside of the target object, simply by adjusting the phase distribution diagram input to the spatial light modulator, which has great flexibility.

Abstract: The present invention discloses a far-field optical super-resolution microscopy method, and particularly relates to an optical super-resolution microscopy method for micro-structures on the surface of a sample. The present invention measures the vibration modes of different micro-samples via a laser interference vibrometer, and utilizes different eigen-vibration frequencies of the micro-structures on the surface of the sample to render, under the cooperation of a sub-nanometer two-dimensional displacement scanning translation stage, a high-resolution spatial position, an excitation frequency vibration spectrum and an image pattern, thus realizing super-resolution microscopy imaging. Since the present invention utilizes the different vibration frequencies of the micro-structures on the surface of the sample to perform marking, and adopts a laser to excite and detect the vibration of the micro-structures, the method has the characteristics of causing no mark, no damage and no contamination to the sample.

Abstract: The present invention discloses a far-field optical super-resolution microscopy method, and particularly relates to an optical super-resolution microscopy method for micro-structures on the surface of a sample. The present invention measures the vibration modes of different micro-samples via a laser interference vibrometer, and utilizes different eigen-vibration frequencies of the micro-structures on the surface of the sample to render, under the cooperation of a sub-nanometer two-dimensional displacement scanning translation stage, a high-resolution spatial position, an excitation frequency vibration spectrum and an image pattern, thus realizing super-resolution microscopy imaging. Since the present invention utilizes the different vibration frequencies of the micro-structures on the surface of the sample to perform marking, and adopts a laser to excite and detect the vibration of the micro-structures, the method has the characteristics of causing no mark, no damage and no contamination to the sample.