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 Expert  712724

Expert in Semiconductor Lasers, Photonic Devices, MOCVD Growth

Available for your Consulting and Expert Witness Needs

Illinois (IL)
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness

Summary of Expertise:

Listed with other top experts in: 

Expert has expertise in many aspects of materials (including crystal) growth, characterization, and devices made from compound semiconductors, especially GaAs and related materials. This includes both liquid phase epitaxial growth and and metalorganic chemical vapor deposition of both optical and electronic devices made from GaAs, AlGaAs, InP, and InGaAsP. He is very familiar with epitaxial reactors.

Expert has an ongoing program on the development of MOCVD for the epitaxial growth of compound semiconducter binary, ternary, and quaternary layers for use in quantum well and supperlattice structures and devices. He has published extensively on reactor designs, the growth process itself, and on the electrical and chemical microcharacterization of the resulting structures and interfaces. He is also very knowledgeable of the broader field of chemical vapor deposition.

Much of Expert's research has involved various aspects of semiconductor injection laser and light-emitting diode development. This includes both infrared and visible lasers, pulsed and continuous lasers, high-power lasers and laser arrays, low-power high-performance lasers, and integrable lasers. He has also worked with gallium arsenide lasers. He is an expert on the physics of quantum well heterostructure lasers and strained layer lasers, and has extensive experience in the determination of laser diode reliability. He is also very knowledgeable regarding multiple quantum well lasers, and of buried heterostructures.

Expert has carried on extensive characterization of the physical, electrical (doped and undoped), and chemical properties of semiconductor epitaxial layers, interfaces, quantum wells, and superlattices. This includes Hall effect, C-V, and I-V measurements, SIMS analysis, scanning and transmission electron microscopy, and optical characterization, including spectral analysis. He is extremely knowledgeable regarding dopants.




gallium arsenide semiconductor


chemical vapor deposition


metal organic chemical vapor deposition


buried heterostructure


continuous wave laser


injection laser


light-emitting diode


multiple quantum well laser


quantum well laser


gallium arsenide laser


doped semiconductor


doping agent


semiconductor material


semiconductor material characterization

Show Secondary and Basic Areas of Expertise
Expert may consult nationally and internationally, and is also local to the following cities: Peoria, Illinois;  Springfield, Illinois;  Joliet, Illinois;  Decatur, Illinois;  Champaign, Illinois;  Bloomington, Illinois;  Terre Haute, Indiana;  and Lafayette, Indiana.

Year   Degree   Subject   Institution  
1975   PhD   Electrical Engineering,   University of Illinois  
1973   MS   Electrical Engineering,   University of Illinois  
1972   BS   Electrical Engineering,   University of Illinois  

Work History:
Years   Employer   Title  

1982 to


(Undisclosed University)




1978 to 1982


Rockwell International



1976 to 1978


Bell Laboratories



Career Accomplishments:

Expert is a Fellow of IEEE, APS, the Optical Society of America, and the American Association of Science.


He won the IEEE LEOS William Streifer Scientific Achievement Award in 2000. Expert was an IEEE LEOS Distinguished Lecturer (1997-99) and a J. Arthur Rank Prize Funds Lecturer (1992). He was the recipient of a Beckman Research Award in 1982.

Publications and Patents Summary

Expert is presently Associate Editor of Photonics Technology Letters. He has authored or co-authored more than 300 technical papers and eight book chapters, given more than 50 invited presentations, and edited six special journal issues and conference proceedings.

Selected Publications and Publishers  
 - III-V Semiconductor Materials and Devices. R. Malik, ed.  
 - IEEE Journal of Quantum Electronics, Institute of Electrical and Electronics Engineers (IEEE)  
 - Quantum Well Lasers. P. Zory, Jr., ed.  
 - Electro-optics handbook  
 - VLSI Electronics: Microstructure Science  

Consulting Services:
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.


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