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We present a low-threshold vertical-cavity dye laser that is pumped by an InGaN laser diode. This vertical-cavity laser has a 1.2-mu m-thick poly-N-vinylcarbazole active layer doped with coumarin 540A. The threshold pump power depended on the dye concentration and showed the minimum value of 16 mW/pulse with the dye concentration of 4.0%. Single-mode laser action is attained at around 550 nm and the output intensity decreases to half of the initial value after the emission of 8 x 10(5) pulses. This concept helps to realize a highly compact dye laser that can be operated in the entire range of visible wavelengths. (c) 2008 American Institute of Physics.




Sakata, H., & Takeuchi, H. (2008). Diode-pumped polymeric dye lasers operating at a pump power level of 10 mW. Applied Physics Letters, 92(11). https://doi.org/10.1063/1.2900628

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