Abstract: A microbubble used as a contrast agent for ultrasound imaging burst due to high intensity of ultrasound, and the burst microbubble effectively acts as a contrast agent for photoacoustic imaging. Based on this point, a new apparatus and method for combined photoacoustic and ultrasound diagnosis are provided.

Abstract: Provided is a photoacoustic imaging device including: a light source unit which generates an ultra-broadband pulsed laser beam and outputs the ultra-broadband pulsed laser beam; a filter unit which filters narrowband pulsed laser beams having predetermined different wavelength bands from the ultra-broadband pulsed laser beam to selectively extract the narrowband pulsed laser beams and outputs the narrowband pulsed laser beams as pulsed laser beams for photoacoustic imaging; and a PA (photoacoustic) unit which receives the pulsed laser beams for photoacoustic imaging to irradiate a measurement object with the pulsed laser beams for photoacoustic imaging and receives photoacoustic signals generated from the measurement object.

Abstract: Provided is a scanner for photoacoustic tomography including: a mirror which reflects light and a photoacoustic signal for the photoacoustic tomography; a first driving member which is attached with the mirror; a second driving member which is connected to the first driving member; first driving force supply units which are disposed under two ends of the first driving member in a first direction to exert a driving force for allowing the first driving member to perform tilting movement in the first direction; and second driving force supply units which are disposed under two ends of the second driving member in a second direction to exert a driving force for allowing the second driving member to perform tilting movement in the second direction.

Abstract: Provided are an optical imaging apparatus for multi-depth image and an imaging system having the same, where an optical lens of a sample stage of an optical imaging apparatus is used as a liquid lens, so that it is possible to acquire an optical image such as a photoacoustic image, an optical coherence tomography image, or a fluorescent image while finely and speedily changing a depth, and it is possible to acquire optical images having various depths by only user's simple control.

Abstract: Provided is a photoacoustic imaging device including: a light source unit which generates an ultra-broadband pulsed laser beam and outputs the ultra-broadband pulsed laser beam; a filter unit which filters narrowband pulsed laser beams having predetermined different wavelength bands from the ultra-broadband pulsed laser beam to selectively extract the narrowband pulsed laser beams and outputs the narrowband pulsed laser beams as pulsed laser beams for photoacoustic imaging; and a PA (photoacoustic) unit which receives the pulsed laser beams for photoacoustic imaging to irradiate a measurement object with the pulsed laser beams for photoacoustic imaging and receives photoacoustic signals generated from the measurement object.

Abstract: An optical fiber for generating a Bessel beam and an optical imaging device using the same are disclosed. The optical fiber for generating a Bessel beam includes a single mode optical fiber (SMF) unit, a multi-mode optical fiber unit, and a lens unit. The SMF unit includes a core and a cladding surrounding the core. The multi-mode optical fiber unit comes in contact with a first end of the SMF unit. The lens unit comes in contact with one end of the multi-mode optical fiber unit that faces the first end of the SMF unit.

Abstract: A microbubble is used as a multi-modality contrast agent for photoacoustic imaging and ultrasound imaging. A method of preparing improved microbubbles that are used as a multi-modality contrast agent for photoacoustic imaging and ultrasound imaging is provided. The microbubble includes a dye-colored lipid shell; and a filling gas filling the inside of the lipid shell. The method of preparing microbubbles includes agitating a dye-colored lipid-containing solution in the presence of filling gas.

Abstract: A microbubble used as a contrast agent for ultrasound imaging burst due to high intensity of ultrasound, and the burst microbubble effectively acts as a contrast agent for photoacoustic imaging. Based on this point, a new apparatus and method for combined photoacoustic and ultrasound diagnosis are provided.

Abstract: In a wavelength detector and an OCT including the same, the wavelength detector includes a wavelength filter by which at least one of the diffraction beams of a coherent input light is selected as a selection beam having a desired frequency by using a flat plate and at least a slit penetrating through the flat plate. The pixel having image data of an OCT image is mapped to the frequency of the selection beam by one to one, thereby improving uniformity of the resolution of the OCT image along a depth of the inspection object. The frequency of the selection beam is determined by an optical spectrum analyzer before initiating the OCT inspection to the object.