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The International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), begun in 1974, is the oldest and largest continuous forum specifically devoted to the field of ultra high frequency electronics and applications. In 2004 the original conference series - International Conference on Infrared and Millimeter Waves (IRMMW) joined up with the International Conference on THz Electronics to form the Joint 29th International Conference on Infrared and Millimeter Waves and the 12th International Conference on Terahertz Electronics (IRMMW-THz 2004). In 2008 the conference name was shortened to the 33rd International Conference on Infrared, Millimeter, and Terahertz Waves, keeping the same general acronym: IRMMW-THz 20XX. In 2009 the conference series was formally incorporated into a mutual benefit science society registered in the state of California, USA.  The society was granted full non-profit status as a US 501c3 corporation in May 2016.  The International Society of Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) has the mission statement: "Promoting the worldwide collection, dissemination and exchange of scientific and technical knowledge in the areas and disciplines involving infrared, millimeter, and terahertz waves." The IRMMW-THz Society has a permanent Board of Directors, official By-Laws, and independent financial resources, and will assure the continuation of the conference series for the foreseeable future.

The IRMMW conference and its long standing accompanying monthly publication, The Journal of Infrared, Millimeter and Terahertz Waves, were among the very first scientific outlets for the burgeoning field of far infrared components and instruments that arose in the mid 1970s. The scope of the conference extends from millimeter wave devices, components and systems to far-infrared detectors and instruments, and encompasses micro- and nano-scale structures to large-scale accelerators and Tokamaks and their applications. In 2011 a new focused THz journal, IEEE Transactions on Terahertz Science and Technology was added to the list of linked technical outlets for members of the IRMMW-THz Society.

The international organizing committee is composed of world-recognized experts from eleven countries. The conference typically alternates between the USA, Asia and Europe on a three year cycle. Past conferences have been supported by US agencies such as IEEE, APS, DOE and DoD and dozens of local societies within the hosting countries. In 2003 both the IRMMW and THz Electronics conferences were held sequentially in Japan. Total attendees for both events was 520 registrants from 18 countries with 340 submitted papers. After 2003 the two conferences joined and attendance in 2004 (Karlsruhe, Germany) exceeded 450 scientists from 28 countries with over 400 contributed papers. The 2005 conference in Williamsburg, Virginia, hosted 300 scientists from 23 countries with more than 375 contributed papers. In Shanghai, China in 2006 more than 550 papers were submitted representing 28 countries and regions, the largest venue in recent memory. The 2007 conference in Cardiff, Wales, UK ended with more than 430 participants from 18 countries and 550 submitted papers. The 2008 conference in Pasadena had over 460 papers from 32 countries. The 2009 venue in Busan, Korea had over 535 attendees from 43 countries. In 2010 the conference in Rome hosted the largest crowd to date, with 640 participants from around the world. From 2011 through 2015 the attendance stayed above 550 with a peak paper submission count above 840 in Copenhagen in 2016. The conference continues to thrive and grow with the THz field.  

Sandwiched between the optical on the short wavelength side and radio on the long wavelength extreme, the Terahertz or Far-Infrared has long been considered the last remaining scientific gap in the electromagnetic spectrum. Due to the historic role the IRMMW conference has played in bridging this gap by bringing together international researchers in many diverse fields - from space science to nuclear fusion - and recently chemistry and biology, the organizing committees would again like to reach out to scientists in adjacent fields who can benefit from recent developments in the far-IR.

In the last few years interest in terahertz imaging and spectroscopy from the biology, security, ultra-fast chemistry and health science communities has grown exponentially as new instrumentation and techniques have begun to make their way into many laboratories world-wide. This is especially the case in Europe and Japan, both of which have thriving cross-disciplinary programs supporting new applications in this frequency domain.

As a consequence the conference organizing committees have significantly expanded the scope and the participating research communities. They have now included a special focus on terahertz techniques and applications, including both the traditional radio frequency domain, and the new fast pulse time domain approaches to generating, detecting and using high frequency energy. The conference offers the attendee a chance to hear and participate in a wide range of topic areas that span all aspects of Infrared, Terahertz and Millimeter-Wave (IR, THz, and MMW) technology and applications from quantum physics, chemistry, and biology to radio astronomy, plasma physics and security.

Over the coming years we are looking forward to very well attended and internationally supported cross-disciplinary conference venues that will set IRMMW-THz up as the pre-eminent conference for information exchange in the "Terahertz Gap."

Major Topic Areas

The following is a representative list of topics typically covered at the conference:

  1. New IR, THz and MMW applications in Biology and Medicine
  2. IR, THz and MMW Imaging, especially biomedical applications
  3. Ultra-fast Components and Measurements in Chemistry and Physics
  4. IR, THz and MMW Astronomy, Atmospheric and Environmental Science Applications
  5. IR, THz and MMW Spectroscopy, Instrumentation and Material Properties
  6. IR, THz and MMW Applications in Security and Defense
  7. MMW Telecommunication and Industrial Applications
  8. Ultra High Speed MMW Digital Devices
  9. MMW and Submillimeter-Wave Radar and Communications
  10. MMW systems, Transmission Lines and Antennas
  11. Gyro-Oscillators and Amplifiers
  12. Free Electron Lasers and Synchrotron Radiation
  13. Plasma Diagnostics
  14. Novel devices and Instruments for IR, THz and MMW applications
  15. THz Devices, Components and Instruments; Frequency and Time Domain.
  16. IR, THz, and MMW Sources, Detectors and Receivers
  17. IR, THZ and MMW Future Applications, Markets and Directions 

Special THz Pioneer Series Articles from IEEE Transactions on Terahertz Science and Technology

This series of technical articles (in time sequence starting in Sept. 2011 and running through the end of the author's tenure as Editor-in-Chief in December 2015) highlight the careers of individuals who have made significant long term contributions to the field of Terahertz Science and Technology. They appear as the lead articles in each issue of the IEEE Transactions on Terahertz Science and Technology. Read the INTRO page first then move on to the main article. They are also archived on the IEEE Oral History site: https://ethw.org/Archives:THz_and_Microwave_Pioneers

IF YOU WISH TO VIEW OR DOWNLOAD THE PDF's of these articles, they are all open access and free but you need to create an account on IEEE Xplore - if you do not already have one. The account is free and access to the PDF's will be granted once you have logged in.

Enjoy their wisdom and their insights!

INTRO TO TERAHERTZ PIONEERS: David H. Auston
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6005344
Peter H. Siegel, “THz Pioneers: David H. Auston: Working Collectively to Combine Complementary Knowledge, Perspectives and Talents,” IEEE Trans. on Terahertz Science and Technology, vol. 1, no.1, pp. 5-8, Sept. 2011.
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6005343

INTRO TO TERAHERTZ PIONEERS: Paul L. Richards
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6047824
Peter H. Siegel, “THz Pioneers: Paul L. Richards: Working at the Edge - Transition Edge Sensors and the Edge of the Universe,” IEEE Trans. on Terahertz Science and Technology, vol. 1, no. 2, pp. 341-348, Nov. 2011.
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6047825

INTRO TO TERAHERTZ PIONEERS: Maurice F. Kimmitt
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6112701
Peter H. Siegel, “THz Pioneers: Maurice F. Kimmitt: A Person Who Makes Things Work,” IEEE Trans. on Terahertz Science and Technology, vol. 2, no. 1, pp. 5-9, Jan. 2012.
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6119244

INTRO TO TERAHERTZ PIONEERS: Robert W. Wilson
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6155748
Peter H. Siegel, “THz Pioneers: Robert W. Wilson: The Foundations of THz Radio Science,” IEEE Trans. on Terahertz Science and Technology, vol. 2., no. 2, pp. 161-166, March 2012.
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6155749

INTRO TO TERAHERTZ PIONEERS: Richard J. Saykally
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6189377
Peter H. Siegel, “THz Pioneers: Richard J. Saykally: Water, Water Everywhere... ,” IEEE Trans. on Terahertz Science and Technology, vol. 2, no. 3, pp. 265-270, May 2012.
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6189378

INTRO TO TERAHERTZ PIONEERS: Daniel R. Grischkowsky
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6222359
Peter H. Siegel, “THz Pioneers: Daniel R. Grischkowsky: We Search for Truth and Beauty,” IEEE Trans. on Terahertz Science and Technology, vol. 2, no.4, pp.377-382, July 2012.
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6224204

INTRO TO TERAHERTZ PIONEERS: Thomas G. Phillips
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6287629
Peter H. Siegel, “THz Pioneers: Thomas G. Phillips: The Sky Above, the Mountain Below,” IEEE Trans. on Terahertz Science and Technology, vol. 2, no. 5, pp. 477-484, Sept. 2012.
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6287045

INTRO TO TERAHERTZ PIONEERS: Frank C. DeLucia
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6359818
Peter H. Siegel, “THz Pioneers: Frank C. DeLucia: The Numbers Count,” IEEE Trans. on Terahertz Science and Technology, vol. 2, no. 6, pp. 577-583, Nov. 2012.
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6357276

INTRO TO TERAHERTZ PIONEERS: Federico Capasso
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6423872
Peter H. Siegel, “THz Pioneers: Federico Capasso: Physics by Design: Engineering Our Way Out of the THz Gap,” IEEE Trans. on Terahertz Science and Technology, vol. 3, no. 1, pp. 5-13, Jan. 2013.
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6423873

INTRO TO TERAHERTZ PIONEERS: Koji Mizuno
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6466420
Peter H. Siegel, “THz Pioneers: Koji Mizuno: 50 Years in Submillimeter-Waves: From Otaku to Sensei,” IEEE Trans. on Terahertz Science and Technology, vol. 3, no. 2, pp. 129-133, March 2013.
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6466421

INTRO TO TERAHERTZ PIONEERS: Manfred and Brenda Pruden Winnewisser
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6510004
Peter H. Siegel, “THz Pioneers: Manfred and Brenda Pruden Winnewisser: Equating Hamiltonians to Nature,” IEEE Trans. on Terahertz Science and Technology, vol. 3, no. 3, pp. 228-236, May 2013.
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6510011

INTRO TO TERAHERTZ PIONEERS: Philippe Goy
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6517891
Peter H. Siegel, “THz Pioneers: Philippe Goy: If You Agree with the Majority You Might be Wrong,” IEEE Trans. on Terahertz Science and Technology, vol. 3, no. 4, pp. 347-353, July 2013.
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6519341

INTRO TO TERAHERTZ PIONEERS: Fritz Keilmann
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6588634
Peter H. Siegel, “THz Pioneers: Fritz Keilmann: RF Biophysics: From Strong Field to Near Field,” IEEE Trans. on Terahertz Science and Technology, vol. 3, no. 5, pp. 505-514, Sept. 2013.
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6588304

INTRO TO TERAHERTZ PIONEERS: Sir John Pendry
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6657771
Peter H. Siegel, “THz Pioneers: Sir John Pendry: Theoretical Physics for a Practical World,” IEEE Trans. on Terahertz Science and Technology, vol. 3, no. 6, pp. 689-698, Nov. 2013.
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6661403

INTRO TO TERAHERTZ PIONEERS: Shenggang Liu
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6710212
Peter H. Siegel, “THz Pioneers: Shenggang Liu: China's Father of Vacuum and Microwave Electronics,” IEEE Trans. on Terahertz Science and Technology, vol. 4, no.1, pp. 5-11, Jan. 2014.
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6710209

INTRO TO TERAHERTZ PIONEERS: Mattheus (Thijs) de Graauw
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6759793
Peter H. Siegel, “THz Pioneers: Mattheus (Thijs) de Graauw: Intention, Attention, Execution,” IEEE Trans. on Terahertz Science and Technology, vol. 4, no. 2, pp. 137-146, Mar. 2014.
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6759780

INTRO TO TERAHERTZ PIONEERS: Tatsuo Itoh
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6807841
Peter H. Siegel, “THz Pioneers: Tatsuo Itoh: Transmission Lines and Antennas: Left and Right,” IEEE Trans. on Terahertz Science and Technology, vol. 4. no. 3, pp. 297-306, May 2014.
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6807864

INTRO TO TERAHERTZ PIONEERS: Michael Bass
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6839054
Peter H. Siegel, “THz Pioneers: Michael Bass: The THz Light at the End of the Tunnel,” IEEE Trans. on Terahertz Science and Technology, vol. 4. no. 4, pp. 409-417, July 2014.
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6828793

INTRO TO TERAHERTZ PIONEERS: Erik Kollberg
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6877710
Peter H. Siegel, “THz Pioneers: Erik Kollberg: Instrument Maker to the Stars,” IEEE Trans. on Terahertz Science and Technology, vol.4 no. 5, pp. 537-544, Sept. 2014.
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6877752

INTRO TO TERAHERTZ PIONEERS: Robert J. Mattauch
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6930852
Peter H. Siegel, “THz Pioneers: Robert J. Mattauch: Two Terminals are Sufficient,” IEEE Trans. on Terahertz Science and Technology, vol. 4, no. 6, pp. 645-652, Nov. 2014.
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6922166

INTRO TO TERAHERTZ PIONEERS: Hiromasa Ito
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6994831
Peter H. Siegel, “THz Pioneers: Hiromasa Ito: Generating THz Energy is Crystal Clear,” IEEE Trans. on Terahertz Science and Technology, vol. 5, no. 1, pp. 6-13, Jan. 2015.
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6994294

INTRO TO TERAHERTZ PIONEERS: Jun-ichi Nishizawa
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7054005
Peter H. Siegel, “THz Pioneers: Jun-Ichi Nishizawa: THz Shogun,” IEEE Trans. on Terahertz Science and Technology, vol. 5, no. 2, pp. 161-169, Mar. 2015.
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7047877

INTRO TO TERAHERTZ PIONEERS: Derek H. Martin
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7086352
Peter H. Siegel, “THz Pioneers: Derek H. Marin: The Mesh that Helped Ensnare the Cosmic Microwave Background,” IEEE Trans. on Terahertz Science and Technology, vol. 5, no. 3, pp. 325-331, May 2015.
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7086350

INTRO TO TERAHERTZ PIONEERS: Paul F. Goldsmith
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7160804
Peter H. Siegel, “THz Pioneers: Paul F. Goldsmith: New Eyes for THz Astronomers,” IEEE Trans. on Terahertz Science and Technology, vol. 5, no. 4, pp. 529-538, July 2015.
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7127064

INTRO TO TERAHERTZ PIONEERS: Xi-Cheng Zhang
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7230320
Peter H. Siegel, “THz Pioneers: Xi-Cheng Zhang: The Face of THz,” IEEE Trans. on Terahertz Science and Technology, vol. 5, no. 5, pp. 705-714, Sept. 2015.
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7208902

INTRO TO TERAHERTZ PIONEERS: Joe W. Waters
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7335701
Peter H. Siegel, “THz Pioneers: Joe W. Waters: THz Meets Gaia,” IEEE Trans. on Terahertz Science and Technology, vol. 5, no. 6, pp. 862-883, Nov. 2015.
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7305833

NEW PIONEER ARTICLES APPEARING IN EACH ISSUE OF IEEE JOURNAL OF MICROWAVES:

Peter H. Siegel, “Microwave Pioneers: John C. Mather ‘A Singular Purpose’,” IEEE Journal of Microwaves, vol. 1, no. 1, pp. 25-31, Jan. 2021.
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9206028

Peter H. Siegel, “Carver Mead: ‘It’s All About Thinking, A Personal Account Leading up to the First Microwave Transistor,” IEEE Journal of Microwaves, vol. 1, no. 1, pp. 269-274, Jan. 2021.
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9318748

Peter H. Siegel, “Kam Lau: uWaves Meets Photons,” IEEE Journal of Microwaves, vol. 1, no. 2, pp. 540-549, April 2021.
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9389588