Micrographs of Human Aorta (IMAGE) Optica Caption Left side: These are photo micrographs of human aorta irradiated in vitro by 1000 pulses of ArF excimer laser 193-nm far ultraviolet light; lower image is a magnified view of an area of the upper image, namely the right-hand-side of the laser-irradiated region Right side: These are photo micrographs of human aorta irradiated in vitro by 1000 pulses of Q-switched, frequency-doubled Nd:YAG laser 532-nm green light; lower image is a magnified view of the upper image, namely the right-hand-side of the laser-irradiated region Credit IBM Research Usage Restrictions Must include caption & credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.