WORK EXPERIENCE:

Optical Process Development/Device Engineer
Developing silicon photonic integrated devices

Senior Process Engineer
Developed next generation cost-effective n-type solar cell process for industrial manufacturing
Directed customer evaluations of solar cell manufacturing processes, including design of experiments, data analysis, management of customer feedback, and customer-facing proof-of-concept
Led transfer of solar cell industrial manufacturing processes to top tier Chinese solar manufacturers
Managed collaboration with European universities to develop solar cell process
Overhauled data analysis by creating custom software leading to a tenfold reduction in solar-cell evaluation time
Contributing technical member of competitor analysis team (“red team”) - analyzed cost/benefit of alternative solar cell manufacturing process steps

Associate Director of Research-College of Engineering
Coordinated academic teams for research grant applications
Developed MySQL/ASP.NET database and website for analyzing College research strengths and matching them with funding opportunities
Assisted in research grant proposal writing and development

Optical Test/Characterization Engineer-Research and Development
Designed demonstration systems for system level integration of optoelectronic components
Designed and optimized high speed integrated photodetectors
Developed test strategy for integrated optoelectronic devices
Created optical test procedures and systems for integrated photodetectors/receivers and planar waveguide devices for performing both wafer level and single die measurements
Developed software for automated testing of optoelectronic devices and incorporation of resultant data into Oracle database and analyzed resultant data to identify design flaws and to suggest improvements

Research Associate-Picosecond Spectroscopy Laboratory
Developing Resonant Cavity Enhanced (RCE) Silicon photodetector arrays with integrated transimpedance amplifiers
Co-designed and advising in fabrication of Ge photodetectors on double SOI wafers for long distance optical communication wavelengths
Co-designed photodetectors for use as microelectronic stimulators in neural tissue

NSF International Collaboration Researcher-Microelectronic Systems Laboratory
Completed "top to bottom" design and fabrication of resonant cavity enhanced photodetectors
Designed high speed photodetectors, 2x2 detector arrays, and 12x1 linear detector arrays
Performed full cad layout of photodetector designs as well as mask file generation
Fabricated full photodetector mask set using Hidelberg Direct Laser Writer
Photodetector device fabrication in 4" wafer scale at EPFL Center for Microtechnology

Research Fellow-Picosecond Spectroscopy Laboratory
Fabricated high bandwidth photodetector for optical fiber communications network
Developed fabrication plan for Resonant Cavity Enhanced (RCE) Silicon photodetector
Co-authored patent application for reflecting substrate fabrication scheme using Silicon On Insulator (SOI) technology
Developed simulation routine in MATLAB to predict quantum efficiency and reflectance of RCE detectors using Distributed Bragg Reflectors (DBR)

Graduate Technical Intern-Component Technology Development Quality & Reliability
Investigated leakage currents in ultra-thin gate oxides
Performed 1/f-noise measurements on MOS transistors
Performed I-V measurements on ultra-thin gate MOS transistors
Developed simulation routine for modeling leakage current in thin gate oxide MOSFET's

Research Fellow-VLSI Process Modeling Laboratory
Investigated the effects of Nitrogen incorporation in thin gate dielectrics on Boron penetration after Poly-Silicon gate implant anneal
Performed comparison analysis of previous test data to extract Boron diffusivity versus Nitrogen concentration model
Performed CV measurements on MOS capacitor samples to extract substrate doping

Graduate Teaching Fellow
Taught discussion sections for Non-Linear Circuit Analysis, Operational Amplifier Design, and Analog Electronic Theory
Instructed laboratory experimentation of Non-Linear Electronics, Analog Electronics, and VLSI Fabrication
Co-wrote and managed laboratory experiments for undergraduate Solid State Physics Course
Wrote homework solutions for Analog Electronics Course

Research and Development Engineer
Designed Feedback Controller for AC motor drive and wrote testing specification for its operation
Wrote C programs to control LCD's used in next generation motor drive
De-bugged various software related problems in ASSEMBLY code
Wrote testing procedures to validate various software enhancements

Undergraduate Research-Center for Thin Film Devices/EMPRL
Performed research for graduate students on organic thin-film transistors
Performed mobility characterization tests on organic TFT's
Built vacuum system to be used for organic deposition

Undergraduate Research-Intelligence and Information Operations Department
Performed research on loop antennas
Developed code in MATLAB predicting magnetic radiation from a loop antenna with complex current distributions using exact series representations
Derived magnetic field equations based on numerical integration method and wrote code in FORTRAN to compare with series representation

Electrical Engineering Co-op
Assisted in developing thermal model for connecting terminals which predicted different power dissipation characteristics
Developed program to control a testing unit through IEEE-488 GPIB interfacing
Wrote code in LABVIEW software to perform validation tests on electromagnetic switches

EDUCATION:

Boston University, College of Engineering, Boston, Massachusetts
PhD in Electrical Engineering, May 2003
Dissertation: "Silicon Resonant Cavity Enhanced Photodetector Arrays For Optical Interconnects"

Boston University, College of Engineering, Boston, Massachusetts
MS in Electrical Engineering, May 2000
Thesis: "Reflecting SOI Substrates for Optoelectronic Applications"

The Pennsylvania State University, College of Engineering, University Park, Pennsylvania
BS in Electrical Engineering, December 1996

PUBLICATIONS:

Patents

1.) M. S. Ünlü, and M. K. Emsley, "Reflective Layer Buried In Silicon and Method of Fabrication," United States Patent Issued, No. 7,501,303, 10 March 2009

Books & Chapters

1.) M. S. Ünlü, O. I. Dosunmu, and M. K. Emsley, "High-Speed Photodetectors for Optical Communications," Wiley Encyclopedia of Telecommunications, December 2002

Journal Articles

8.) M. Ghioni, G. Armellini, P. Maccagnani, I. Rech, M. K. Emsley, and M. S. Ünlü, "Resonant-cavity-enhanced single photon avalanche diodes on double silicon-on-insulator substrates," Journal of Modern Optics, Vol. 56, January 2009, pp. 309-316

7.) M. Ghioni, G. Armellini, P. Maccagnani, I. Rech, M. K. Emsley, and M. S. Ünlü, "Resonant-Cavity-Enhanced Single-Photon Avalanche Diodes on Reflecting Silicon Substrates," IEEE Photonics Technology Letters , Vol. 20, No. 6, 15 March 2008, pp. 413-415

6.) O. I. Dosunmu, D. D. Cannon, M. K. Emsley, L. C. Kimerling, and M. S. Ünlü, "High-Speed Resonant Cavity Enhanced Ge Photodetectors on Reflecting Si Substrates for 1550-nm Operation," IEEE Photonics Technology Letters , Vol. 17, No. 1, January 2005, pp. 175-177

5.) O. I. Dosunmu, D. D. Cannon, M. K. Emsley, B. Ghyselen, J. Liu, L. C. Kimerling, and M. S. Ünlü, "Resonant Cavity Enhanced Ge Photodetectors for 1550nm Operation on Reflecting Si Substrates," IEEE Journal of Selected Topics in Quantum Electronics, Vol. 10, No. 4, July/August 2004, pp. 694 - 701

4.) M. S. Ünlü, M. K. Emsley, O. I. Dosunmu, P. Muller, and Y. Leblebici, "High-speed Si resonant cavity enhanced photodetectors and arrays," Journal of Vacuum Science and Technology A, Vol. 22, No. 3, 14 May 2004, pp. 781-787

3.) M. K. Emsley, O. I. Dosunmu, and M. S. Ünlü, "Silicon Substrates With Buried Distributed Bragg Reflectors for Resonant Cavity-Enhanced Optoelectronics," IEEE Journal of Selected Topics in Quantum Electronics, Vol. 8, July/August 2002, pp. 948-955

2.) M. K. Emsley, O. I. Dosunmu, and M. S. Ünlü, "High-Speed Resonant-Cavity-Enhanced Silicon Photodetectors on Reflecting Silicon-on-Insulator Substrates," IEEE Photonics Technology Letters , Vol. 14, April 2002, pp. 519-521

1.) V. Schwegler, S. S. Schad, M. Scherer, M. Kamp, G. Ulu, M. K. Emsley, M. S. Ünlü, A. Lell, S. Bader, B. Hahn, H. J. Lugauer, F. Kühn, A. Weimar, and V. Härle, "GaN-based Lasers on SiC: Influence of Mirror Reflectivity on L-I Characteristics," Journal of Crystal Growth, Vol. 230, No. 3-4, September 2001, pp. 512-516

Conference Papers

16.) Y. Larionova, F. Kiefer, B. Lim, F. Heinemeyer, R. Peibst, R. Brendel, M. Emsley, C. Dube, J. Graff, "Industrial Ion Implanted Co-annealed and Fully Screen-Printed Bifacial n-PERT Solar Cells with Low-Doped Back-Surface Fields," 5th nPV Workshop, 25-26 March 2015

15.) M. Emsley, A. Voltan, M. Galiazzo, J. Graff, M. Sheoran, "Doping of nPERT Solar Cells Using Ion Implantation and Single Thermal Activation," 4th nPV Workshop, 27-28 March 2014

14.) M. Sheoran, M. Emsley, J. Howarth, J. Graff, Y. Liu, J. Wu, X.-S. Wang, J. Yang, J. Li, Y. Zheng, F. Yan, K. Wijekoon, "Fully Implanted Rear Emitter n-Type (FIRE) Solar Cells," 29th European Photovoltaic Solar Energy Conference and Exhibition, 22-26 September 2014

13.) A. Lanterne, Y. Veschetti, R. Cabal, S. Gall, D. Ramappa, M. Sheoran, M. Emsley, A. Tauzin, "Ion Implant Doping for n-Type Cz High Efficiency Industrial Boron Emitter Solar Cells with Single Activation Process," 27th European Photovoltaic Solar Energy Conference and Exhibition, 24-28 September 2012

12.) M. Sheoran, M. Emsley, M. Yuan, D. Ramappa, P. Sullivan, "Ion-implanted Doped Large-Area n-Type Czochralski High-Efficiency Industrial Solar Cells," 38th IEEE Photovoltaic Specialists Conference, 3-8 June, 2012

11.) M. Ghioni, G. Armellini, P. Maccagnani, I. Rech, M. K. Emsley, and M. S. Ünlü, "Resonant-Cavity-Enhanced Single Photon Avalanche Diodes," Single-Photon Workshop 2007, 25 September 2007

10.) P. Muller, M. K. Emsley, A. Tajalli, M. Ataraodi, M. S. Ünlü, and Y. Leblebici, "Design and Integration of All-Silicon Fiber-Optic Receivers for Multi-Gigabit Chip-to-Chip Links," European Solid-State Circuits Conference, Montreux, Switzerland, 18th-22nd September 2006

9.) O. I. Dosunmu, D. D. Cannon, M. K. Emsley, L. C. Kimerling, and M. S. Ünlü, "High Speed Resonant Cavity Enhanced Ge Photodetectors on Reflecting Si Substrates for 1550 nm Operation," Proceedings of IEEE Lasers and Electro-Optics Society 2004 Annual Meeting, 7-11 November 2004, pp. 148-149

8.) O. I. Dosunmu, D. D. Cannon, M. K. Emsley, L. C. Kimerling, and M. S. Ünlü, "High-Speed Resonant Cavity Enhanced Ge Photodetectors on Si Reflecting Substrates for 1550nm Operation," International Topical Meeting on Microwave Photonics, 4-6 October 2004, pp. 266-268

7.) O. I. Dosunmu, D. D. Cannon, M. K. Emsley, B. Ghyselen, J. Liu, L. C. Kimerling, and M. S. Ünlü, "Germanium on double-SOI photodetectors for 1550-nm operation," Proceedings of SPIE: Semiconductor Photodetectors, Vol. 5353, 24-29 January 2004, pp. 65-71

6.) O. I. Dosunmu, M. K. Emsley, D. D. Cannon, B. Ghyselen, L. C. Kimerling, and M. S. Ünlü, "Germanium on Double-SOI Photodetectors for 1550nm Operation," Proceedings of IEEE Lasers and Electro-Optics Society 2003 Annual Meeting, Vol. 2, 29-30 October 2003, pp. 853-854

5.) M. K. Emsley, O. I. Dosunmu, P. Muller, Y. Leblebici, and M. S. Ünlü, "Silicon Resonant Cavity Enhanced 12x1 Photodetector Arrays For Optical Interconnect Receiver Integration," Proceedings of IEEE Lasers and Electro-Optics Society 2003 Annual Meeting, Vol. 1, 27-28 October 2003, pp. 67-68

4.) M. K. Emsley, O. I. Dosunmu, P. Muller, M. S. Ünlü, and Y. Leblebici, "Silicon Resonant-Cavity-Enhanced Photodetector Arrays For Optical Interconnects," Proceedings of SPIE: Active and Passive Optical Components for WDM Communications III, Vol. 5246, 8-11 September 2003, pp. 409-421

3.) M. K. Emsley, O. I. Dosunmu, M. S. Ünlü, P. Muller, and Y. Leblebici, "Realization of High-Efficiency 10 GHz Bandwidth Silicon Photodetector Arrays for Fully Integrated Optical Data Communication Interfaces," Proceedings of the 33rd European Solid-State Device Research Conference, 16-18 September 2003, pp. 47-50

2.) M. K. Emsley, O. I. Dosunmu, and M. S. Ünlü, "High-Efficiency, 10 GHz Bandwidth Resonant-Cavity-Enhanced Silicon Photodetectors Operating at 850 nm Wavelength," Proceedings of IEEE Lasers and Electro-Optics Society 2001 Annual Meeting, Vol. 2, 12-13 November 2001, pp. 839-840

1.) M. K. Emsley, and M. S. Ünlü, "Epitaxy-Ready Reflecting Substrates for Resonant-Cavity-Enhanced Silicon Photodetectors," Proceedings of IEEE Lasers and Electro-Optics Society 2000 Annual Meeting, Vol. 2, 13-16 November 2000, pp. 432-433

COMPUTER SKILLS:

Programming Languages: C, FORTRAN, 68000 ASSEMBLY/MACHINE, LABVIEW, HTML, BDSYN, BASIC, HP-VEE
Applications: Agilent Advanced Design Systems (ADS), Cadence, SUPREM-IV, MATLAB, Mathematica, SPICE, AutoCAD, MAGIC, MS Office, VEM, CaZM
Operating Systems: Windows 2000/2003 Server with Active Directory, Windows 3.X/95/98/NT/2000/XP, DOS, Macintosh, UNIX, VM

HONORS AND ACTIVITIES:

Chairman IEEE Photonics Society Web Portal Committee: April 2008 to 2012
Chairman IEEE Lasers and Electro-Optics Society Central New England Chapter: January 2005 to December 2006
IEEE Photonics Society Boston Chapter Technical Planning Committee: January 2004 to Present
Member IEEE Photonics Society
Invited talk for Photodetectors and Imaging session at IEEE LEOS 2004: November 2004
Co-Lecturer of Photodetectors for Optical Communications Workshop: October 2004
Invited talk for IEEE LEOS CNEC Chapter Meeting: March 2004
IEEE LEOS 2002 Graduate Student Fellowship
IEEE LEOS 2001 Student Travel Grant
H. J. Berman "Future of Light" Prize in Photonics at Boston University Science Day 2001
Electrical & Computer Engineering Ph.D. Student Travel Award
Electrical & Computer Engineering Graduate Teaching Fellow of the Year Award
Boston University Electrical & Computer Engineering Chair Fellowship
Eta Kappa Nu Electrical Engineering International Honor Society
Pennsylvania State University Electrical Engineering Envoy

WEBSITE DEVELOPMENT:

Boston University Optical Characterization and Nanophotonics Laboratory, http://ultra.bu.edu/, 2001 to Present
Boston University Center for Nanoscience and Nanobiotechnology, http://nanoscience.bu.edu/, 2005 to 2014
IEEE Photonics Society Boston Chapter, http://www.bostonphotonics.org/, 2007 to Present