Walid Tawfik, is Egyptian associate Professor, in laser spectroscopy and ultrafast lasers at Department of Physics and Astronomy, King Saud University (KSU), Saudi Arabia since late of 2011 to the present. He hold this position during his sabbatical leave of permanent position as associate professor at the department of Environmental, Laser applications, at National Institute of Laser (NILES), Cairo University, Cairo, Egypt. In 1994 he joined NILES as staff member and promoted as assistant lecturer, assistant professor and associate Professor in 1996, 2000, and 2008, respectively.  He received the B.SC, Master and Ph.D degrees in physics, laser physics, and laser spectroscopy in 1992, 1996, 2000, respectively, from Cairo University, Egypt. His Ph.D. was on fast laser interaction dynamics, where his experiment part and data collection done at Technical University TU, Munich, Germany among joined project between TU, and NILES on 2000.

Since his graduation, he have published about 30 papers and sharing in two books  as well as many lectures, seminars and invited talks at universities, research institutions and international conferences, and has served as a reviewer for the journal of Sensor Letters (USA), journal of Physical Chemistry (USA), journal of environmental engineering research (USA) and ITB journal (Indonesia). His research is primarily concerned with laser induced breakdown spectroscopy (LIBS) for both plasma physics studies and elemental analysis in many environmental, industrial, and medical samples. Moreover, he used LIBS for investigating semiconductors, nanoparticles and  Quantum Dots.  Since 2007, He started to be interested in ultrafast laser and its application as well. He worked as associate researcher on plasma waveguide for ultrafast pulses and ultrafast few cycle generations at prof. Edon Kim laboratory of advanced lasers ,POSTECH , Pohang, South Korea between 2010 and 2011. He recently visited  prof. rick trebino group at Georgia Institute of Technology USA for some months in 2015 to share experiances in building an ultrafast laser beam line experiment for studying ultrafast electronic transitions at KSU.