A tube preparation step of preparing a resin tube that has a tube wall impregnable with a solution including a fine substance and is made of a light-transmitting resin material, a solution preparation step of preparing a solution that includes a fine fluorescent substance that emits fluorescence or a fine scattering substance that scatters light as an oscillation material and an impregnation step of causing the resin tube to be immersed in the solution and causing the tube wall of the resin tube to be impregnated with the oscillation material, are included.

A compound represented by the formula (1) has excellent lasing properties. G.sup.1 and G.sup.2 are H or substituent; FL.sup.1 and FL.sup.2 are represented by the formula (2); BT is represented by the formula (4); and n1, n2 and m are 1 to 5.

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A printing head module, system and method for printing laser light sources. The printing head module comprises one or more printing heads used for printing a plurality of laser light sources on a substrate successively or once for all; ink used for printing comprises a luminescent dye and a host material, as well as a solvent. The system comprises a printing head module and an ink cartridge; the printing head module is used for inkjet printing the laser light sources on the substrate; the ink cartridge is used for storing ink. By means of the technical solution, industrial manufacturing of the laser light sources is achieved, and speckles caused by laser coherence are eliminated.

Ink for producing laser light sources. The ink is used for inkjet printing to produce laser light sources of a certain scale. The ink comprises a luminescent dye, a host material, and a solvent. The use of the ink makes it possible to produce laser light sources through inkjet printing. This provides a novel technical solution for cheap and industrial manufacturing of laser light sources and other related products through inkjet printing.

A tube preparation step of preparing a resin tube that has a tube wall impregnable with a solution including a fine substance and is made of a light-transmitting resin material, a solution preparation step of preparing a solution that includes a fine fluorescent substance that emits fluorescence or a fine scattering substance that scatters light as an oscillation material and an impregnation step of causing the resin tube to be immersed in the solution and causing the tube wall of the resin tube to be impregnated with the oscillation material, are included.

A laser energy meter circuit, method, and system for measuring excitation and ionization of a reactant. The laser energy meter circuit includes a pyroelectric detector head configured to receive laser pulses and output current signals; an amplifier having a first amplifier input and an amplifier output configured to generate amplified voltage signals; a sample-and-hold circuit; a trigger circuit connected to a second sample-and-hold input, wherein the trigger circuit is configured to receive a TTL signal and generate a delayed output pulse, Q.sub.1 and a trigger signal, Q.sub.2; a sample-and-hold circuit output configured to output the maximum pulse voltage when the trigger signal is received at the second sample-and-hold input; a switched capacitor bank connected to the sample-and-hold circuit output; and a peak detector circuit configured to measure a magnitude of the maximum pulse voltage and generate an averaged DC maximum pulse voltage signal.

A laser panel, a laser array device, and a laser display. The laser panel and the laser array device separately comprise multiple groups of independent laser light source modules; each group of laser light source modules comprises plural light sources; the plural light sources are all produced by inkjet printing; the laser display and a voltage-driven laser display separately comprise the laser panel. Producing a laser panel by inkjet printing provides a novel technical solution for cheap and industrial manufacturing of laser panels. It is difficult to generate laser coherent superposition between the light emitted by the laser light source module, and therefore, speckles caused by laser coherence in conventional laser display technologies are greatly eliminated. The present invention achieves a voltage-driven laser display, and facilitates achieving a better display effect while reducing the volume of the display.

The present invention relates to a solid-state blended polymer system that has the property of tunable lasing wavelength through adjusting the blending ratio. It can be used for health monitoring, environmental monitoring sensor and tissue imaging. Current materials do not have the broad tunable range; from blue to infra-red across the optical range. By using the same two polymers, it is possible to produce laser emitting blue to red colour. It simplifies the design, eases multi-wavelength laser sensor system integration and therefore, making the production cost-effective.

The solid state laser with conjugated oligomer active material uses a lasing medium including a conjugated oligomer embedded in a transparent crystal matrix. The lasing medium preferably also includes a thermally conductive material. A pump laser generates a pump laser beam to impinge on the lasing medium, causing the lasing medium to generate at least one amplified spontaneous emission laser beam. The transparent crystal matrix may be formed from an epoxy thermosetting plastic, such as that formed from a hardener and an epoxy, such as isobornyl acrylate, ethyl 2-cyanoacrylate, ethyl 2-cyano-3,3-bis(methylthio)acrylate, ethyl cyanoacrylate, ethyl cis-(-cyano)acrylate, poly(bisphenol A-co-epichlorohydrin) or bisphenol A. The conjugated oligomer may be 1,4-bis(9-ethyl-3-carbazo-vinylene)-9,9-dihexyl-fluorene (BECVH-DHF). The thermally conductive material may be molybdenum disulfide (MoS.sub.2) or [6,6]-phenyl-C61-butyric acid methyl ester (PCBM 60).

A tube preparation step of preparing a resin tube that has a tube wall impregnable with a solution including a fine substance and is made of a light-transmitting resin material, a solution preparation step of preparing a solution that includes a fine fluorescent substance that emits fluorescence or a fine scattering substance that scatters light as an oscillation material and an impregnation step of causing the resin tube to be immersed in the solution and causing the tube wall of the resin tube to be impregnated with the oscillation material, are included.