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The Q-switched Nd: YAG laser is one of the most popular in a series of pulsed solid-state laser systems for dermatology and plastic surgery applications. The 532nm wavelength has been shown to be absorbed by a variety of chromophores. These include oxy-hemoglobin, melanin-containing epidermal cells and red tattoo pigments to name a few. However, for some medical treatments the physician may need additional wavelengths in the yellow-red spectral range.

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 were manufactured in Russia. They were pumped by a frequency doubled MedlitelM \,rNd:YAG laser developed by Continuum Biomedical with pulse energies up to 56OrnJ, pulse width 5 to 7ns with a beam size of 6mm and intensities up to 400MW/cm2. A maximum dye laser output energy up to 45OmJ at 585nm and up to 3lOmJ at 650nm were achieved in broadband operation mode. Overall efficiency> 80% at 585nm and > 50% at 650nm were obtained at pump fluences up to 2J/cm2. 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 25OmJ for more than 50,000 pulses at 585nm and l5OmJ for more than 20,000 pulses at 650nm has been achieved with the MultiliteTM Dye Laser Handpiece developed by Continuum Biomedical. This was achieved with pump energies up to 400mJ.

A relatively new type of laser, the copper vapor laser (CVL) has shown much potential in the area of high -speed imaging by helping extend the capabilities of existing high -speed recording equipment. It has helped image data or events that might have otherwise been obscured or lost by a blurred image, inadequate light, or too low a frame rate.