Wisconsin Discovery Portal

Researcher: Dan Botez

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Areas of Expertise
  • High-power and spatially coherent semiconductor lasers
  • Photonic Crystal semiconductor lasers for high coherent-power generation
  • Quantum Cascade lasers
  • Three major areas of semiconductor-laser device physics: High-power, coherent edge-emitting lasers; high-power, coherent grating surface-emitting lasers; and intersubband-transition emitters
  • Applications of high-power coherent diode lasers such as sources for high-speed, high-resolution laser printing, generators of blue light via harmonic conversion, and intersatellite optical communications
  • Applications of intersubband CW lasers emitting in the mid-IR including high-sensitivity spectroscopy for non-invasive medical diagnostics and chemical-agent detection to free-space communications and infrared countermeasures
Web Site Dan Botez's University Web Page
Curriculum Vitae (CV)
Issued Patent(s)
  • 8,848,754 - Multiquantum well structures for suppression of electron leakage and reduction of threshold-current density in quantum cascade lasers, issued September 2014.
  • 8,428,093 - High-power quantum cascade lasers with active-photonic-crystal structure for single, in-phase mode operation, issued April 2013.
  • 8,325,774 - High power, high efficiency quantum cascade lasers with reduced electron leakage, issued December 2012.
  • 8,259,767 - High-power quantum cascade lasers with active-photonic-crystal structure, issued September 2012.
  • 7,856,042 - High efficiency intersubband semiconductor lasers, issued December 2010.
USPTO Published Applications
  • 20120039350 - High power, high efficiency quantum cascade lasers with reduced electron leakage, published February 2012.
  • 20120201263 - High-power quantum cascade lasers with active-photonic-crystal structure, published August 2012.
  • 20080043794 - Intersubband quantum box stack lasers, published February 2008.
  • 20070248131 - High efficiency intersubband semiconductor lasers, published October 2007.
Recent Publication(s)
  • Highly temperature insensitive, low threshold-current density (λ = 8.7–8.8 μm) quantum cascade lasers. Kirch JD, Chang CC, Boyle C, Mawst LJ, Lindberg D, Earles T, Botez D. Appl Phys Lett. 2015;106:151106. doi: 10.1063/1.4917499.
  • 5.5 W near-diffraction-limited power from resonant leaky-wave coupled phase-locked arrays of quantum cascade lasers. Kirch JD, Chang CC, Boyle C, Mawst LJ, Lindberg D, Earles T, Botez D. Appl Phys Lett. 2015 February 9;106(6):061113. doi: 10.1063/1.4908178.
  • 50% continuous-wave wallplug efficiency from 1.53μm-emitting broad-area diode lasers. Garrod T, Olson D, Klaus M, Zenner C, Galstad C, Mawst L, Botez D. Appl Phys Lett. 2014 August 18;105(7):071101. doi: 10.1063/1.4893576.
  • Low-strain, quantum-cascade-laser active regions grown on metamorphic buffer layers for emission in the 3.0-4.0 μm wavelength region. Mawst LJ, Kirch JD, Kim T, Garrod T, Boyle C, Botez D, Zutter B, Schulte K, Kuech TF, Bouzi PM, Gmachi CF. Optoelectron. 2014 April;8(2):25-32. doi: 10.1049/iet-opt.2013.0060.


View Dan Botez's publications at Google Scholar.
Recent Artistic Works
Collaboration
  • Intraband, LLC
  • Intra-University Collaboration: Reed Center for Photonics
Research Tools
Research Facilities
  • Reed Center for Photonics
  • Wisconsin Center for Applied Microelectronics
E-mail Address [email protected]
Phone Number 608-265-4643
Current University UW–Madison
Department Electrical and Computer Engineering
Title Professor
Other Appointments
Address Line 1 4627 Engineering Hall
Address Line 2 1415 Engineering Drive
City Madison
State WI
Zip Code 53706
Bachelor's Degree B.S., University of California-Berkeley, Electrical Engineering, 1971
Master's Degree M.S., University of California-Berkeley, Electrical Engineering, 1972
PhD Ph.D., University of California-Berkeley, Electrical Engineering, 1976
Other Degrees
Technologies Available for Licensing High Coherent Power, Two-dimensional Surface-Emitting Semiconductor Diode Array Laser

High Efficiency Intersubband Semiconductor Laser

Intersubband Quantum Box Stack Lasers

Intersubband Semiconductor Lasers that Operate Reliably at Room Temperature and in the Mid-Infrared

Single Mode Surface-Emitting Semiconductor Laser

Two-dimensional, Surface-Emitting, Semiconductor Diode Laser with High Coherent Power

More Efficient and Reliable High Power Quantum Cascade Lasers

Semiconductor Lasers with Doping Gradients in Optical Confinement Areas to Increase Laser Efficiency

Smoother Waveguides for More Efficient Nonlinear Frequency Conversion

More Efficient Semiconductor Lasers

High Power, High Efficiency Quantum Cascade Lasers with Reduced Electron Leakage

High-Power Quantum Cascade Lasers for Single, In-Phase Mode Operation

High-Power Quantam-Cascade Lasers with Active Photonic Crystal Structure