Dr. Kurt J. Linden
Senior Scientist at N2 Biomedical
SPIE Involvement:
Education Committee | Senior status | Conference Program Committee | Conference Chair | Track Chair | Author | Instructor
Area of Expertise:
Semiconductor optoelectronics , Photonics , Diode Lasers , Photon Detectors , Solar cells , Terahertz technology
Websites:
Profile Summary

Dr. Linden is a Senior Scientist at N2 Biomedical LLC, responsible for initiating and managing photonics-related R&D activities leading to advanced components and instruments. Projects fall into the areas of photonic semiconductor materials, lasers, LEDs, detectors, solar cells, components, subassemblies, fiber lasers, and photonic device-based equipment for biomedical applications, genetic/proteomic based analytical instruments, homeland security, and military applications. Current activities involve visible, infrared, and terahertz semiconductor lasers, mid-IR fiber lasers, solar cells and associated instruments. Dr. Linden taught optoelectronics and microelectronics courses for over 25 years, both at Northeastern University and in the MIT Summer Program, as well as at numerous in-house corporate training sites. He currently teaches photonics courses for SPIE. He produced several nationally-televised tutorial video recordings for NTU, and has written a CD-ROM book on Diode Lasers and Optical Detectors. He is also a regular tutorial instructor on diode lasers and detectors at annual SPIE conferences, and has presented numerous lectures at local and regional meetings, as well as workshops on diode lasers at the annual meeting of the American Society of Lasers in Medicine and Surgery. He has presented tutorial material on photonics in training patent examiners at the U.S. Patent and Trademark Office (USPTO). Dr. Linden chaired annual SPIE conferences on Photodetectors, as well as Terahertz and Gigahertz Electronics and Photonics, is a reviewer for the technical journals Applied Physics Letters, Journal of Applied Physics, and Photonics Technology Letters, and has served as an expert witness on optoelectronic-device related cases. Dr. Linden is a senior life member of the IEEE, a member of the Optical Society of America (OSA) and SPIE, and was previously inducted into honor societies Tau Beta Pi, Eta Kappu Nu and Sigma Xi.
Publications (25)

PROCEEDINGS ARTICLE | August 30, 2017
Proc. SPIE. 10317, Spectrally Selective Surfaces for Heating and Cooling Applications

PROCEEDINGS ARTICLE | March 7, 2016
Proc. SPIE. 9706, Optical Interactions with Tissue and Cells XXVII
KEYWORDS: Continuous wave operation, Laser therapeutics, Blood, Photography, Semiconductor lasers, Laser ablation, Laser cutting, Tissue optics, Laser tissue interaction, Absorption

PROCEEDINGS ARTICLE | February 27, 2014
Proc. SPIE. 9003, Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XVIII
KEYWORDS: Mirrors, Electronics, Light emitting diodes, Sensors, Solar cells, Ions, Lamps, Xenon, Neodymium, Device simulation

PROCEEDINGS ARTICLE | March 8, 2013
Proc. SPIE. 8565, Photonic Therapeutics and Diagnostics IX
KEYWORDS: Continuous wave operation, Tissues, Glasses, Skin, Fiber lasers, Bone, Ear, Er:YAG lasers, Laser tissue interaction, Absorption

PROCEEDINGS ARTICLE | February 12, 2009
Proc. SPIE. 7215, Terahertz Technology and Applications II
KEYWORDS: Radar, Transceivers, Transmitters, Waveguides, Quantum cascade lasers, Receivers, Signal processing, Diodes, Terahertz radiation, Microwave radiation

SPIE Conference Volume | February 9, 2009

Showing 5 of 25 publications
Conference Committee Involvement (39)
High-Power Diode Laser Technology and Applications XIV
15 February 2016 | San Francisco, California, United States
Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XX
15 February 2016 | San Francisco, California, United States
Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XIX
10 February 2015 | San Francisco, California, United States
High-Power Diode Laser Technology and Applications XIII
8 February 2015 | San Francisco, California, United States
Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XVIII
4 February 2014 | San Francisco, California, United States
Showing 5 of 39 published special sections
Course Instructor
SC747: Semiconductor Photonic Device Fundamentals
Updated for 2018, this course presents a basic, in-depth description and explanation of the operation of the broad range of semiconductor photonic devices used for light generation, modulation, manipulation, detection and application, covering the optical spectral region extending from UV, visible, IR, through terahertz (sub-mm). The course begins with a review of the basics of semiconductor materials, with primary emphasis on their electrical and photonic properties. The motion of electrons and holes is discussed, and photon absorption and generation mechanisms are reviewed. The course describes and examines device structures such as p-n junctions, Schottky barriers, quantum wells, quantum wires and quantum dots, Bragg reflectors, quantum cascade lasers as tunable coherent infrared sources, VCSELs, distributed feedback lasers, avalanching, tunneling and various photonic device effects. Current research as well as commercially-available photonic devices and representative systems are discussed. Course participants will gain an in-depth understanding of semiconductor photonic devices, their figures of merit, limitations, applications, and current areas of research.
SC131: Introduction to Diode Lasers, LEDs, and Detectors
This course provides a clear explanation of the operating principles and applications of diode lasers, LEDs, and detectors, and which devices are commercially available. Following a brief review of semiconductors, the mechanisms of photon generation and detection are discussed. The semiconductors used for visible and IR devices, quantum well, surface emitting, Bragg reflector, and single mode lasers, are described. Distributed feedback, lasers, laser noise and linewidth, PIN and APD detectors, superlattice and Schottky detectors, CCDs and heterodyne detection are also covered.
SC448: Diode Lasers: How to Select the Best Laser for Your Application
This course reviews those general principles of semiconductor device operation necessary to understand how diode lasers work, and what design features influence the laser characteristics. The course reviews the basic operating principles of diode lasers, and surveys the various types of laser devices currently in use, such as quantum well lasers, distributed feedback (DFB) and vertical cavity surface emitting lasers (VCSELs), high power edge-emitters, pump lasers, and special single-mode laser designs. A discussion of diode laser reliability and handling issues is included. The course concludes with an overview of currently available laser types and some of their applications. A recommended list of references is provided.
SC048: High Power Diode Lasers and Applications
This course explains the fundamentals of semiconductor lasers, with emphasis on high power diode lasers. Following a review of the optoelectronic properties of semiconductors, the course presents the basic operating principles of diode lasers, and then surveys the various types of laser devices currently in use such as quantum well lasers, distributed feedback (DFB) and vertical cavity surface emitting lasers (VCSELs). The course ends with a summary of currently available laser types and some of their applications. A recommended list of current references is provided.
SC449: Diode Detectors: How to Select the Best Detector for Your Application
This course provides a brief survey of optical radiation detector types and reviews the basic detector figures of merit. The primary focus of the course is on high-sensitivity, low-noise semiconductor detectors covering the UV through far-IR spectral regions, although other detectors are discussed as well. Broadband photoconductors, MSM devices and photodiodes including PIN and APD designs of various materials and spectral response characteristics are discussed in detail. Some background material on CCD imaging devices is included. The course concludes with a summary of current detector applications, and will suggest specific choices for optimal system operation.
SC055: Fundamentals of Photodetectors
The course begins with a survey of optical radiation detector types and defines the detector figures of merit. Following an overview of thermal detectors, the course focuses on high-sensitivity, low-noise detectors from the UV through far-IR spectral regions. Broadband photoconductors, MSM devices and photodiodes including PIN and APD designs of various materials and spectral response characteristics are discussed in detail. The course includes a summary of current detector applications.
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