Topics of interest for the OWTNM workshop address the physical understanding, the mathematical description, and the computational treatment of guided as well as non-guided optical waves and related effects in micro- and nanostructures. They include, but are not limited to:

• Advances in analytical, numerical, and computational methods:

  Generic & configuration-specific; efficient approximate tools & large-scale simulations, parallel computing.

• Device design and optimization:

  tools & algorithms for design and optimization, inverse problems, machine learning methods.

• Photonic nanostructures and metamaterials:

  Nano-resonators and -antennas, resonator arrays, homogenization, optical metamaterials, surface-enhanced Raman scattering, photon management by nanostructures in PV and OLED structures, metamaterial waveguides.

• Quantum optics:

  Schemes for entangled states preparation, efficient single photon and photon pair generation, detector schemes, optimized structures in integrated photonics.

• Plasmonics:

  Metallic waveguides and nanowires, tapers and field enhancement, array-effects in metallic nanostructures.

• Optical micro-resonators:

  Passive and active optical cavities, resonator circuits, excitation and spectral engineering, photonic atoms & molecules, and respective applications.

• Photonic crystals:

  Photonic bandgap structures, photonic crystal devices, photonic crystal fibres, and respective applications.

• Guided wave sensors:

  Fibre optic and guided wave / integrated-optic sensing devices, systems, theories and techniques, bio-sensors.

• Passive and active waveguide devices:

  Simulation and design of photonic integrated systems, linear and nonlinear effects in waveguides and waveguide arrays, light localization in space and time, grating structures, in- and out-coupling device schemes.

• Optoelectronic devices:

  Waveguide lasers, fibre amplifiers and lasers, micro-lasers, mid IR and THz sources.

• Multiphysics effects:

  Coupling of optical, electronic, acoustic, mechanical, and thermal simulations.

• Packaging and Integration:

  Fabrication process theory and simulation, packaging and integration issues.

Over the years, a couple of formal aspects have crystallized as being typical for the OWTNM "format":

• Background: academic, no commercial interests.
• Date: spring (late winter — early summer), typically on a Friday and Saturday.
• Location: varying, major capitals as well as small towns all over Europe.
• Venue: varying, sometimes associated closely with the organizing institution (e.g. a lecture hall at a University), in other instances a hall suitable for scientific presentations in an interesting and/or pleasant place elsewhere.
• Accommodation: organized individually by the participants; suggestions provided by the local organizers.
• Duration: about 1.5 — 1.75 days of scientific presentations.
• Program: starting with a welcome reception in the evening on the day of arrivals (the day before the actual workshop); followed by a day filled with sessions of oral presentations, a poster session, and a workshop dinner in the evening; followed by half / three quarters of a day of oral presentations.
• Submissions: short papers (extended abstracts / summaries) of a length of one page are solicited; no revision iterations. A preference for oral or poster presentation can be stated; accepted papers will be scheduled for either type or presentation depending on the review, and on the availability of slots in the program.
• Invited speakers: about 5 — 10 for each workshop.
• Presentations: regular papers: slots of 15min / 20min, including 5min for discussion; invited talks: 30min, including 10min for discussions; posters: boards of A0-size.
• Proceedings: the one-page papers as submitted, being made available to the participants in printed and / or electronic form and / or published online (workshop website).
• Workshop website: established by the local organizers, specifies all these details.
• Special journal issue: participants and other interested colleagues are invited to submit full papers on their contributions, or on other subjects within the list of topics of the workshop, to a special issue / a topical collection of Optical and Quantum Electronics; the local organizers serve as guest editors.
• Group photo: including all participants.
• Attendance: typically 50 — 80 participants (30 — >100 participants), numbers vary widely; about 95% from academia / institutions, 5% with commercial affiliation.
• Sponsoring: financial support has been received from local institutions and scientific organizations in the field, but also from companies with an interest in (computational) photonics.
• Conference fee: covers attendance in the scientific sessions, an (electronic) copy of the proceedings, coffee & lunches, welcome reception, and the conference dinner; reduced fees for early registrants and for participating students.

Necessarily, the specifics of each new event will depend largely on the preferences and choices of the local organizers, on constraints imposed by the yearly changing location, on a collocated conference, or on other internal or external influences.

The first International Workshop on Optical Waveguide Theory and Numerical Modelling was held in Teupitz, Germany, in 1992. Since then, the annual conference has moved across Europe, with one detour to Australia:

• 2021, Bordeaux, France  (cancelled)  
  (TNTN 2021, combined with the 14th Annual Meeting Photonic Devices of Zuse Institute, Berlin)
• 2020, Berlin, Germany    
  (TNTN 2020, combined with the 13th Annual Meeting Photonic Devices at Zuse Institute, Berlin)
• 2019, Málaga, Spain
• 2018, Bad Sassendorf, Germany    
• 2017, Eindhoven, The Netherlands  
  (collocated with the European Conference on Integrated Optics ECIO 2017)
• 2016, Warsaw, Poland  
  (collocated with the European Conference on Integrated Optics ECIO 2016)
• 2015, London, UK  
• 2014, Nice, France    
  (collocated with the joined European Conference on Integrated Optics & MicroOptics Conference ECIO-MOC 2014)
• 2013, Enschede, The Netherlands    
• 2012, Sitges, Barcelona, Spain
  (collocated with the European Conference on Integrated Optics ECIO 2012)
• 2010, Cambridge, UK  
  (collocated with the European Conference on Integrated Optics ECIO 2010)
• 2009, Jena, Germany  
• 2008, Eindhoven, The Netherlands  
  (collocated with the European Conference on Integrated Optics ECIO 2008)
• 2007, Copenhagen, Denmark
  (collocated with the European Conference on Integrated Optics ECIO 2007)
• 2006, Varese, Italy  
• 2005, Sydney, Australia
• 2005, Grenoble, France
  (collocated with the European Conference on Integrated Optics ECIO 2005)
• 2004, Ghent, Belgium  
• 2003, Prague, Czech Republic  
  (collocated with the European Conference on Integrated Optics ECIO 2003)
• 2002, Nottingham, UK  
• 2001, Paderborn, Germany  
  (collocated with the European Conference on Integrated Optics ECIO 2001)
• 2000, Prague, Czech Republic  
• 1999, Saint-Etienne, France
• 1998, Hagen, Germany  
• 1997, Enschede, The Netherlands
• 1995, Roosendaal, The Netherlands
  (satellite meeting to the European Conference on Optical Communication ECOC 1995)
• 1994, Siena, Italy
  (satellite meeting to the European Conference on Optical Communication ECOC 1994)
• 1993, Vevey, Switzerland
  (satellite meeting to the European Conference on Optical Communication ECOC 1993)
• 1992, Teupitz, Germany   ^∗
  (satellite meeting to the European Conference on Optical Communication ECOC 1992)

Collections of the one-page papers, or extended abstracts, respectively, as accepted for presentation at the OWTNM workshops, published electronically and/or as a printed booklet, in many cases including the detailed technical program of the events.

• 2020, Berlin, Germany
• 2019, Málaga, Spain
• 2018, Bad Sassendorf, Germany  
• 2017, Eindhoven, The Netherlands  
• 2016, Warsaw, Poland  
• 2015, London, UK  
• 2014, Nice, France  
• 2013, Enschede, The Netherlands  
• 2012, Sitges, Barcelona, Spain  
• 2010, Cambridge, UK  
• 2009, Jena, Germany  
• 2008, Eindhoven, The Netherlands  
• 2007, Copenhagen, Denmark  
• 2006, Varese, Italy  
• 2005, Sydney, Australia
• 2005, Grenoble, France  
• 2004, Ghent, Belgium  
• 2003, Prague, Czech Republic  
• 2002, Nottingham, UK  
• 2001, Paderborn, Germany  
• 2000, Prague, Czech Republic  
• 1999, Saint-Etienne, France  
• 1998, Hagen, Germany  
• 1997, Enschede, The Netherlands  
• 1995, Roosendaal, The Netherlands  
• 1994, Siena, Italy  
• 1993, Vevey, Switzerland
• 1992, Teupitz, Germany  

Links or refer to special issues or topical collections of full papers associated with the respective workshops in Optical and Quantum Electronics, and to an article in the Journal of Lightwave Technology on a solver benchmark initiated at the very first workshop in the series.

• Arti Agrawal, University of Technology Sydney, Australia  
• Sven Burger, Zuse Institute Berlin, Germany  
• Anne-Laure Fehrembach, Institut Fresnel, Marseille, France  
• Manfred Hammer, Paderborn University, Germany  
• Stefan Helfert, FernUniversität Hagen, Germany  
• Bastiaan de Hon, Eindhoven University of Technology, The Netherlands  
• Andrei Lavrinenko, Technical University of Denmark, Lyngby, Denmark  
• Marian Marciniak, National Institute of Telecommunications, Warsaw, Poland  
• Andrea Melloni, Politecnico di Milano, Italy  
• Íñigo Molina Fernández, University of Málaga, Spain  
• Alejandro Ortega Moñux, University of Málaga, Spain  
• Sendy Phang, University of Nottingham, UK  
• Gilles Renversez, Université d'Aix-Marseille, France  
• Ivan Richter, Czech Technical University, Prague, Czech Republic  
• Dirk Schulz, TU Dortmund University, Germany  

Previous members

• Trevor Benson (University of Nottingham, UK)
• Jiří Čtyroký (Institute of Photonics and Electronics, Czech Academy of Sciences, Czech Republic)
• Anand Gopinath (University of Minnesota, USA)
• Hugo J.W.M. Hoekstra (University of Twente, Enschede, Netherlands)
• John Love (Australian National University, Canberra, Australia)
• Hans-Peter Nolting (Heinrich-Hertz-Institut für Nachrichtentechnik, Berlin, Germany)
• Olivier Parriaux (Lyon University at Saint Etienne, France)
• Reinhold Pregla (FernUniversität Hagen, Germany)
• Christoph Wächter (Fraunhofer IOF, Jena, Germany)

For questions on the OWTNM workshop series, or for suggestions concerning this web site, please send your e-mail to info@owtnm.eu. Alternatively, you might wish to contact the members of the technical committee directly. Please send any inquiries about the upcoming workshop (e.g. about dates, venue, paper submission, registration, etc.) to the respective local organizers.