Name:

Zeyad A. Alahmed, Ph.D

Current Position:

Supervisor of the Internal Scholarship Program in KSU &  Assistant Professor Dept. of Physics and Astronomy - College of Science

Address:

PO Box 2455, Riyadh 11451, Saudi Arabia

Phone:

+96614676615

Email:

zalahmed@ksu.edu.sa

Website:

http://faculty.ksu.edu.sa/zalahmed

  Education:

·    Ph.D Microelectronics-Photonics in May 2007, the University of Arkansas, Fayetteville, AR

·    M.S. in Physics - Laser Spectroscopy - in May 2003,  the University of Arkansas, Fayetteville, AR

·    B. Ed. in Physics in Jun 1996, King Saud University in Riyadh, Saudi Arabia

Skills and experiences:

·         Theoretical experiences:

o   Expert in First-principles calculation method with DFT.

o   Proficient in developing codes using Fortran.

o   Expert in CASTEP, Abinit, PWSCF, SAP, and OpenMX.

o   Expert in theoretical modeling of materials with nanostructures.

o   Capable of generating pseudopotentials using Troullier-Martins’ method.

o   Capable of generating special k-points in BZ using Monkhorst-Pack’s method.

o   Expert in Mathmatica, Mathcad, Maple, Mathlab, Jmol, CaRIne Crystallography, Gnuplot, and Origin.

·         Experimental experiences:

§  operation and alignment of different types of lasers

§  absorption characterization techniques

§  photoluminescence excitation spectroscopy (PLE)

§  designing glass sample cells

§  operation of vacuum systems  

§  soldering

o   Proficient in:

§  operating various signal-processing equipment

§  minor machining

§  designing electronic circuit

o Familiar with:

§  variety of optical equipments and components

§  Semiconductors nanostructures technology: optoelectronic applications, growth, Materials & Devices

§  growth by Molecular Beam Epitaxy (MBE) and MOCVD

§  characterization with Atomic Force Microscope (AFM)

· Computer skills:

o Expert in most of the Unix, Linux and Windows operating systems.

o Proficient in LaTex, MS Office, MS Project, and others.

· Work experiences:

o 2007-Current, Assistant Professor at the Department of Physics, King Saud Univ., Riyadh, KSA.

o 2004-2007, Research Assistant at the Department of Physics, UAF.

o 1997-2007, TA at the Department of Physics, King Saud Univ., Riyadh, KSA. 

o 1996-1997, Physics Teacher at the Diplomatic Quarters High School in Riyadh, KSA.

o In the summer of 1996, the Saudi Arabian Standards Organization (SASO)

· Research experiences:

·From fall 2001 to spring 2004, I studied photothermal deflection spectroscopy (PTDS) on Na and Rb atoms using two-photon absorption. My thesis develops a theory of two-photon PTDS. Also, we have developed a new detection technique for PTDS that has a significant improvement in the signal-to-noise ratio and in the frequency bandwidth compared with those available with current techniques.

· My PhD dissertation concentrates on two projects. (a) Studying chemical potentials and formation energy of a vacancy in perovskite structure using first-principles calculation method. (b) Investigating effects of in-plane strains on structural, electronic, and electrical properties of ZnO using first-principles calculation.

·  Development of an intense MHz-rate coherent XUV source in the framework of the Nobel program in KSU with Max Planck Institute of Quantum Optics in Garching, Germany.  

Publications and Presentations:

1. Z. Al-Ahmed, Y. J. Li, and R. Gupta, Review of Scientific Instruments, 74, 349 (2003).

2. Z. Alahmed and R. Gupta, Appl. Phys. B 79, 741-479 (2004).

3. A. Sharma, G. Ycas, Z. Alahmed, and R. Gupta, “Detection of photothermal deflection signals   with conjugate masks,” Appl. Opt. 44, 3110-3116 (2005).

4. Z. Alahmed and H. Fu, “First-principles determination of chemical potentials and vacancy formation energy in lead titanate and barium titanate,” an extended abstract submitted to Fundamental Physics of Ferroelectrics Conference, 2006 in Williamsburg, Virginia.

5. Z. Alahmed and H. Fu, “First-principles determination of chemical potentials and vacancy formation energy in lead titanate and barium titanate,” a poster conference presented to Fundamental Physics of Ferroelectrics Conference, 2006 in Williamsburg, Virginia (poster).

6. Z. Alahmed and H. Fu, “Comparative study of vacancy formation energies in PbTiO3 and BaTiO3,” an extended abstract submitted to Fundamental Physics of Ferroelectrics Conference, 2007 in Williamsburg, Virginia.

7.     Z. Alahmed and H. Fu, “Electronic structure and electromechanical properties in ZnO under inplane strain,” An abstract submitted to 14th Semiconducting and Insulating Conference, May 15, 2007 in Fayetteville, Arkansas.

8. Z. Alahmed and H. Fu, “First-principles determination of chemical potentials and vacancy formation energy in PbTiO3 and BaTiO3,” Physical Review B 76, 224101 (2007).

9. Z. Alahmed and H. Fu, “Polar semiconductor ZnO under inplane tensile strain,” Physical Review B 77, 045213 (2008)  (Submitted on Aug 2, 2007 and Accepted on Dec 17, 2007, Published on Jan 31, 2008).

10. Z. Alahmed, “First-Principles Study of Electronic Properties of CdS Thin Film Under Inplane Strains,” Poster presentation submitted to The International Conference For Nanotechnology Industries: The Leading Technology of 21st Century, April 5-7, 2009 in Riyadh, SA.

11.  I. Pupeza, T. Eidam3, B. Bernhardt, A. Ozawa, J. Rauschenberger, E. Fill, A. Apolonski, Th. Udem, J. Limpert, Z. A. Alahmed, A. M. Azzeer, T. W. Hänsch, A. Tünnermann, F. Krausz, “Power Scaling of a 78 MHz-Repetition Rate Femtosecond Enhancement Cavity.” Submitted to the Conference on Lasers and Electro-Optics (CLEO), (May 16-21, 2010) in San Jose, California, USA.

12.   Ioachim Pupeza, Tino Eidam, Jens Rauschenberger, Birgitta Bernhardt, Akira Ozawa, Ernst Fill, Alexander Apolonski, Thomas Udem, Jens Limpert, Zeyad A. Alahmed, Abdallah M. Azzeer, Andreas Tünnermann, Theodor W. Hänsch, and Ferenc Krausz, “Power scaling of a high repetition rate enhancement cavity,” Optics Letters (Submitted on Jan 2010).

13.  Z. Alahmed and H. Fu, “Electromechanical properties of ZnO under inplane tensile strain,” Physical Review B (To be submitted).

Academic Professional Membership and Awards:

·Supervisor of the Internal Scholarship Program in KSU

·Director of the Electronic Portal of VPEAA since Jan, 2010

·Director of Laser Physics and Spectroscopy Group in the department of Physics and Astronomy, KSU, since Jan, 2009

·Member of American Physical Society (APS)

·Member of Optical Society of America (OSA)

·Member of the European Physical Society (EPA)

·Member of MPQ-KSU Collaboration

·Member of e-learning committee in the college of Science from Feb 2008

·Member of the plan study committee of the new B.Sc. Academic Program for department of Physics and astronomy, King Saud University, from May 1, 2008

·Member of the Strategic planning committee in the department of Physics and Astronomy, KSU, from Jan 2008

·Selected as a leader for Student Project Planning, University of Arkansas, August 2006 to May 2007

·Recipient of the First Microelectronics-Photonics Monthly Research Efficiency Award (2006)

·Member of High Performance Computing (HPC- RedDiamond) at the University of Arkansas, since 2004

·Member of Laser and Spectroscopy research group in Physics Department, King Saud University, since 1999.