Ultrafast Instruments (image) McGill University Share Print E-Mail Caption This is professor Siwick tweaking up the laser in his McGill University lab. Credit Allen McInnis for McGill University Usage Restrictions One-time use only. Share Print E-Mail 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.