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These lasers have the ability away from the exciton is created may lead to a positive surface plasmon exciton-photon super-material opportunities for innovation, and seeking and using nano-scale optical and influence the development of plasma technology. Figure 1 exciton laser plasma pattern. A. nanoparticle geometry (not to exact scale), the pigment molecules with the active case. b. gold atom core electron microscope images. c. gold / dye / activity of the particles away from the exciton scanning microscope diagram. d. plasma exciton laser mode (pseudo-color). The color ofgreen laser pointer is various.
At a wavelength of 525nm and the quality factor of 14.8, internal and external circles show 14nm core. Color also shows the strength of the energy intensity of the position. Figure 2 spectroscopic results: 1 for the disappearance of the normal state. 2 for stimulation. 3 that the natural radiation. 4 shows the stimulated emission. Gold / pigment / active molecules of the spectrum. Consumption, etc. from the exciton peak reached 1.1 * 10-12cm2. Natural radiation and stimulated emission at the bottom when the meter by UV fluorescence measurements. Figure 3 Radiation power curve: the motherboard, the power of stimulated emission data results in 1.480nm and 2.520nm. Track 1 is the driving force and the logarithm of the time line (dot plot) of smooth curves. green laser pointer has no directivity.
Each stimulated emission frequency of the pump power curve with 90ps is the same. Figure 4 Stimulated emission: a. board, to be exciting nano-particle spectrum, the sample pump energy 22.5mj (1), 9mj (2), 4.5mj (3), 2mj (4), 1.25mj (5 ) parameters for the optical vibrations of 5ns or wavelength of 488 nm. b. motherboard, the corresponding input-output map (top axis, the total pump energy, the following axis, the total radiation energy per nanoparticle), most of the experiments summarized from 5% error (which is accepted by the light sensor active and pump laser instability caused) is not typical. a, illustrations, stimulated emission in the sample diluted 100-fold more in the release. b, illustration, stimulated emission (526nm and 537nm stimulus in between) and the natural radiation (stimulus> 537nm or <526nm) ratio. green laser pointer can be used freely with great care.
Some of these methods show an experimental and theoretical study of the following detailed discussion: (1) gold, activity, staining the integration of a mixture of nanoparticles and purification (2) from the exciton theory of such lasers in gold between the core and shell the interaction. The kinetic energy by stimulated emission of radiation measurements, and (4) calculated from the spectral domain of laser decay time. Detailed methods and reference methods are all related in www.nature.com / nature sites in the online version be answered. Particles dissolve and clean: According to a previous method need to be prepared with sodium selenite were thin gold shell core [19, 27] and transformed into a unit of ethanol (1 μl per ml of ethanol, amino hydroxide) dilution of (1:4). Four silane is added to a thick shell (1 μl per 10 ml St?ber reagent). green laser pointer has a USB interface.
10 ml 0G-448 cyanate glycosides from the isothiocyanate or maleimide (4.56 mmol of the dimethyl sulfoxide dissolved in biology reagents), which is 3 - cyano different substances (ICPTS) or to 3 - Malay acyl substance (MPTMS) combination, in an inert 1:50 split in the ground mixture (dye molecules: ICPTS, dye molecules: MPTMS) while adding 10 ml St?ber these reagents. Particles after centrifugation and then precipitated in water. Nanoparticles concentrated in the sediment, about 3 * 1011cm-3, of which gold WT% of the elemental analysis results are provided. Clients can use green laser pointer immediately.