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Adam Mock

Adam Mock

Assistant Professor
Electrical Engineering

ET Building 130C


B.S., Electrical Engineering, Columbia University, 2003
Ph.D., Electrical Engineering, University of Southern California, 2009

Research Fields

  • Micro and nano photonics
  • Theoretical and computational electromagnetics
  • Fiber optics

Current Research Projects

My work deals with the design, analysis and demonstration of novel photonic devices with length scales on the order of or less than the wavelength of visibile or near infrared light.  This work is primarily motivated by applications in lightwave communication systems and compact bio-chemical sensors.  Of interest to materials research topics is the interaction between the electromagnetic fields and materials defining the underlying structure.  These materials can be dispersive, nonlinear, anisotropic and/or optically active enabling numerous photonic capabilities.

Current projects include the following:

  • Design of two dimensional photonic crystal devices. The ability to define a two dimensional periodic array with subwavelength features into semiconductor materials makes available a large design space for novel, compact photonic devices.  One aspect of this work focuses on the design of large quality factor and small mode volume cavities to function as compact and efficient chip scale laser sources.  Another aspect of this work focuses on linear defect waveguides.  Of particular interest is reducing the vertical radiation loss of these devices when dielectric lower substrates are introduced as heat sinks.  The electromagnetic analysis of these devices demands a three dimensional fully vectorial numerical method.  My work utilizes the finite-difference time-domain method to extract the field profiles and radiative loss properties of these devices.
  • Microstructured optical fiber design and characterization. Within the past ten years optical fibers with microstructured air voids running the length of the fiber have enabled numerous applications in nonlinear optics, supercontinuum generation, dispersion control, high power beam delivery and sensing.  This project involves developing novel and efficient finite-difference time-domain codes to analyze the modes of these fibers.  Of particular interest is obtaining sensitivity estimates when these fibers are used as liquid or gas refractive index sensors.

Selected Publications

  • Adam Mock, Ling Lu and John O'Brien, "Space group theory and Fourier space analysis of two-dimensional photonic crystal waveguides," Physical Review B 81 155115 (2010).
  • Adam Mock and John O’Brien, “Strategies for reducing the out-of-plane radiation in photonic crystal heterostructure microcavities for continuous wave laser applications,” IEEE Journal of LightwaveTechnology 28(7) 1142-1150 (2010).
  • Ling Lu, Adam Mock, Eui Hyun Hwang, John D. O’Brien and P. Daniel Dapkus, “High peak power efficient edge-emitting photonic crystal nanocavity lasers,” Optics Letters 34(17) 2646-2648 (2009).
  • Adam Mock, Ling Lu, Eui Hyun Hwang, John D. O’Brien and P. Daniel Dapkus, “Modal analysis of photonic crystal double heterostructure laser cavities,” IEEE Journal on Special Topics in Quantum Electronics 15(3) 892-900 (2009).
  • Ling Lu, Adam Mock, Tian Yang, Min Hsiung Shih, Eui Hyun Hwang, Mahmood Bagheri, Andrew Stapleton, Stephen Farrell, John O’Brien and P. Daniel Dapkus, “Hundred micro-watts peak output power from an edge-emitting photonic crystal double-heterostructure laser,” Applied Physics Letters 94(11) 111101 (2009).
  • Adam Mock and John O’Brien, “Direct extraction of large quality factors and resonant frequencies from Pade interpolated resonance spectra,” Optical and Quantum Electronics 40(14) 1187-1192 (2009).
  • Ling Lu, Adam Mock, Mahmood Bagheri, Eui Hyun, John D. O’Brien and P. Daniel Dapkus, “Double-heterostructure photonic crystal lasers with lower thresholds and higher slope efficiencies obtained by quantum well intermixing,” Optics Express 16(22) 17342-17347 (2008).
  • Adam Mock, Ling Lu and John O’Brien, “Spectral properties of photonic crystal double heterostructure cavities,” Optics Express 16(13) 9391-9397 (2008).

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