94 results about "Dye laser" patented technology

A device for irradiating tissue includes a fluorescent element for receiving pump radiation and responsively emitting radiation having different spectral characteristics than the pump radiation. A redirector receives emitted radiation promulgated in a direction away from a tissue target and redirects the radiation toward the target. The pump radiation may be supplied, for example, by a flashlamp or frequency-doubled neodymium-doped laser. Use of the device provides an inexpensive and effective alternative to conventional dye laser-based systems for various medical therapies, including treatment of vascular and pigmented lesions, tattoo and hair removal, and photodynamic therapy (PDT).

The present invention relates to a hybrid photonic crystal fiber, into the core of which a functional material is injected. The hybrid photonic crystal fiber of the present invention comprises: a central hole having a diameter of 4 to 15 μm extending in the longitudinal direction; an inner cladding also formed in the longitudinal direction outside the central hole, having a hexagonal arrangement of air holes, each of which has a diameter of 2 to 5 μm and a lattice constant of 4.5 to 7 μm; an annular outer cladding surrounding the outer surface of the inner cladding; and a core formed by filling a functional material in some of the air holes including the central hole. According to the present invention, changes in the state, i.e. the liquid, liquid-crystal, or biofluid states, of the functional material that fills the core that has a variety of shapes may enable the modulation of light intensity, wavelength, phase, and polarization, and thus enable various photonic networks to be produced. The hybrid photonic crystal fiber of the present invention may serve as various optical sensors capable of sensing changes in refractive index caused by external stresses such as temperature and pressure. The hybrid photonic crystal fiber of the present invention may be used as a light source for a fluorescent dye laser for a visible ray zone using fluorescent dye, or for an ultra-wideband laser of 700 nm or higher using high nonlinear liquid.

The present invention belongs to the field of photoelectric material, in the concrete, it is a 9-position anthracene and pyrene substituted fluorenic conjugated derivative material and its preparation method, and said material can be used in the field of organic electronics of organic / polymer electroluminescence material, organic integrated circuit, organic solar cell, organic field effect transistor, dye laser, organic non-linear optical material and fluorescent probe, etc. Said compound can utilize 9-position twice substitution structure to introduced the anthracene and pyrene into the high-effective luminescent conjugated fluorene system. Besides, said invention also provides several advantage of said conjugated derivative material.

The invention discloses a prism beam expanding device, which consists of a prism, a prism pressing plate, a prism platform, a rotary table and a platform supporting rod, wherein the prism is fixedly arranged on the prism platform through the prism pressing plate; the prism platform is fixed to a rotating shaft of the rotary table; the platform supporting rod is fixed to a pedestal of the rotary table; and the entire prism platform is driven by the rotary table to rotate within a certain angle range by taking the platform supporting rod as an axis. The two-dimensional pitch of the prism is adjustable, and the height of the platform supporting rod is adjustable. The device is mainly used in a line-width reduction module of an excimer laser or a dye laser. The prism beam expanding device is characterized in that accurate adjustment can be realized in four dimensions so as to quickly and efficiently adjust the prism light path. In addition, the line width of the laser spectrum can be finely adjusted within a certain range by adjusting the angle between the light beam and the prism platform.

The invention relates to a microfluidic dye laser including a pump light source configured to provide light having a pump light wavelength. The microfluidic dye laser also includes an elastomer substantially optically transparent at the pump light wavelength and at a microfluidic dye laser wavelength. A microfluidic channel configured to accept a fluidic dye is defined in the elastomer. An optical grating is formed in a single mode 3D waveguide in the microfluidic channel in order to provide a single mode microfluidic dye laser light as output in response to illumination with light from the pump light source. In another aspect, the invention features a method of tuning a wavelength of a microfluidic dye laser light by mechanically deforming the elastomeric laser chip to change the grating period in the optical cavity.