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Efficient polymer dye lasers with variable wavelengths for medical a

机译：高效可变波长的聚合物染料激光器，用于医疗领域

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Abstract: Presented here are experimental results for a new high- energy/intensity polymer dye laser, with different laser resistant modified polymer elements impregnated with pyrromethene dyes. These polymers manufactured in Russia. They were pumped by a frequency doubled Medlite IV Nd:YAG laser developed by Continuum Biomedical with pulse energies up to 560mJ, pulse width 5 to 7ns with a beam sizes of 6mm and intensities up to 400MW/cm$+2$/. A maximum dye laser output energy up to 450mJ at 585nm and up to 310mJ at 650mm were achieved in broadband operation mode. Overall efficiency $GRT 80 percent at 585nm and $GRT 50 percent at 650 nm were obtained at pump fluences up to 2J/cm$+2$/. Variable wavelengths of 560 and 585nm in the yellow spectral range and 630 and 650nm in the red spectral range were demonstrated by choosing the proper polymer element with different laser dyes and a specially designed dichroic high reflector. A stable output of 250mJ for more than 50,000 pulses at 585nm and 150mJ for more than 20,000 pulses at 650nm has been achieved with the Multiple Dye Laser Handpiece developed by Continuum Biomedical. This was achieved with pump energies up to 400 mJ. !7
机译：摘要：这里介绍的是一种新型高能/高强度聚合物染料激光器的实验结果，该激光器具有不同的抗激光改性聚合物元素，并掺有吡咯亚甲基染料。这些聚合物在俄罗斯制造。它们由Continuum Biomedical开发的倍频Medlite IV Nd：YAG激光泵浦，脉冲能量高达560mJ，脉冲宽度为5至7ns，光束尺寸为6mm，强度高达400MW / cm $ + 2 $ /。在宽带工作模式下，最大染料激光输出能量在585nm时可达450mJ，在650mm时可达310mJ。在高达2J / cm $ + 2 $ /的泵浦注量下，获得了585nm时的总效率$ GRT 80％和650nm时的GRT 50％。通过选择具有不同激光染料的合适聚合物元素和专门设计的二向色高反射镜，可以证明在黄色光谱范围内的波长分别为560和585nm，在红色光谱范围内的波长为630和650nm。 Continuum Biomedical开发的多染料激光手机实现了在585nm处超过50,000个脉冲的250mJ稳定输出和在650nm处超过20,000个脉冲的150mJ稳定输出。这是通过高达400 mJ的泵浦能量实现的。 ！7

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