Fourier Transform Spectroscopy (FTS)
Events
Fourier Transform Spectroscopy (FTS)
Optica Sensing Congress
20-24, July 2025
Long Beach, CA, USA
FTS focuses on the latest advances in instrumentation and applications of Fourier Transform Spectroscopy to astronomy and astrophysics, atmospheric science and remote sensing, laboratory spectroscopy, analytical chemistry, bio-medicine and a variety of industrial applications.
Fourier transform spectrometers onboard satellites looking toward Earth provide new insights on the planet’s atmosphere, climate and a host of other meteorological and remote sensing applications. Instruments looking out provide a wealth of data targeting galaxies, stars, planets and the cosmic diffuse infrared and microwave background radiation.
Ground-based and airborne FT interferometers explore a variety of topics in physics, geophysics and astrophysics, including solar processes, radiative energy transport in the atmosphere, the geographic distribution of greenhouse gases and air pollutants and spectroscopic studies using the atmosphere as a natural laboratory.
Chip-scale interferometers fabricated using state-of-the-art nanotechnology open up new opportunities for space and industrial applications. Laser frequency combs dramatically improve the resolution and recording speed of Fourier spectrometers. New spectral regions (e.g., VUV or THz) are under exploration with synchrotron radiation. Ultrashort laser pulses expand the territory of FTS to nonlinear and multidimensional spectroscopy.
This international meeting provides a unique opportunity to discuss many of these exciting developments in a highly interdisciplinary environment.
Essential Links
Technical Program
This congress presents the latest developments in optical sensing and sensors as well as their use in a variety of applications. Of particular note are a number of hot topics being addressed, including agriphotonics, fiber-based sensing, THz sensing, sensing solutions in manufacturing and the latest developments in comb spectroscopy, including fiber lasers and mid-IR sources.
Objectives
- Learn about the latest advances in sensing for the environment, including dual-comb sensing of atmospheric gases, compact LIDAR and hyperspectral sensors.
- Discover relevant techniques for sensing in an industrial environment such as real-time process monitoring on the factory floor, spectroscopic food safety inspection and spectroscopic analysis in harsh environments.
- Understand the latest applications of fiber and nanophotonic sensors for biological and chemical sensing, including the newest wearable sensor technology.
- Investigate novel laboratory spectroscopic techniques and methodologies for disruptive sensing technology, such as novel light sources and detectors, photonic integrated circuit (PIC) sensors and sensing networks.
- Explore the production, detection, and use of THz radiation for metrology and sensing, including comb-source generation and biosensing applications.
_________________________________________________________________________________
Chairs
Lucile Rutkowski
Institut de Physique de Rennes, France,
General Chair
Christoph Englert
US Naval Research Laboratory, United States,
Program Chair
David Naylor
University of Lethbridge, Canada,
Program Chair
____________________________________________________________________________________
Committee
- Lucile Rutkowski, Institut de Physique de Rennes, France, General Chair
- Christoph Englert, US Naval Research Laboratory, United States, Program Chair
- David Naylor, University of Lethbridge, Canada, Program Chair
- Pablo Acedo, Universidad Carlos III de Madrid, Spain
- Sandrine Galtier, Universite Lyon 1, France
- Takuro Ideguchi, University of Tokyo, Japan
- Corneli Keim, Airbus Defence & Space GmbH Library, Germany
- Amir Khodabakhsh, Radboud Universiteit Nijmegen, Netherlands
- Pei-Ling Luo, Academia Sinica, Taiwan
- Isamu Morino, NIES, Japan
- Ryan Rhoades, National Inst of Standards & Technology, United States
- Stefan Schmuck, ITER, France
- Sheng-Cai Shi, Purple Mountain Observatory, China
- Joe Taylor, University of Wisconsin-Madison, United States
- Carole Tucker, Cardiff University, United Kingdom
___________________________________________________________________________________
Topic Categories
Fourier Transform Spectroscopy (FTS)
FTS focuses on the latest advances in instrumentation and applications of Fourier Transform Spectroscopy to astronomy and astrophysics, atmospheric science and remote sensing, laboratory spectroscopy, analytical chemistry, bio-medicine and a variety of industrial applications.
Topics of Interest
- Novel Interferometer Design
Imaging FT spectrometers, spatial-spectral interferometry, stationary interferometers, spectrometers on a chip, stationary-wave integrated FT spectrometers - Instrument Design, Scientific Objectives and Measurement Results for Space Missions Utilizing Fourier Transform Spectrometers
- Laser Frequency Combs for Fourier Transform Spectroscopy
Development of frequency comb sources and instruments on chip on in novel spectral regions - Dual-comb Spectroscopy, Frequency-comb Based Spectroscopy with Michelson Interferometers or Pulse Shapers. Applications to Laboratory Spectroscopy and to Sensing
- Laboratory Spectroscopy
Advanced light sources and measurement techniques for Fourier transform spectrometers; FTS at synchrotron facilities, nano-spectroscopy, nonlinear and multidimensional FT spectroscopy with ultrashort pulse lasers - FTS Applications
Industrial process monitoring, spectroscopy, earth and planetary science, atmospheric remote sensing, trace gas detection, astronomy and experimental cosmology, fusion diagnostics - FTS Algorithm Developments
Spectral and radiometric calibration, instrument line shape modeling and correction, nonlinearity effects, applications of artificial intelligence - All Other Topics Related to Instrument Developments and Characterizations, Data Processing and Applications of Fourier Transform Spectroscopy
___________________________________________________________________________________
Plenary Speakers
Hidetoshi Katori
The University of Tokyo, Japan
From High Precision to Innovation: Optical Lattice Clocks for Future Applications
Optica Distinguished Lecture Series on Quantum Science and Technology
Optical lattice clocks achieve 18-digit accuracy, enabling chronometric leveling and paving the way for redefining the second. Advances in compact clock designs, long-distance clock comparisons and continuous interrogation techniques will facilitate their real-world implementation.
About the Speaker
Hidetoshi Katori, born 27 September 1964, is a Japanese physicist and professor at the University of Tokyo best known for having invented the magic wavelength technique for ultra-precise optical lattice atomic clocks. Since 2011, Katori is also Chief Scientist at the Quantum Metrology Lab, RIKEN.
Recently, Katori's group performed a measurement of gravitational redshift with two transportable strontium optical lattice clocks over nearly the entire height of the Tokyo Skytree, setting a new record for the best ground-based test of general relativity.
Florian Schreck
University of Amsterdam
Continuous Bose-Einstein Condensation and Optical Clocks
Continuous instead of pulsed operation of optical clocks promises a hundred-fold increased measurement bandwidth. On our path to this goal, we achieved continuous Bose-Einstein condensation [Nature 606, 683 (2022)] and build continuously operating optical clocks.
About the Speaker
Prof. Florian Schreck (University of Amsterdam) works on quantum sensors and simulators based on ultracold strontium gases. His research group recently achieved continuous Bose-Einstein condensation, a great starting point for future continuous atom lasers that could be useful for atom interferometry. Using techniques created for that work, his group is developing a new generation of optical clocks, continuously operating superradiant and zero-deadtime clocks. Other projects include the study of ultracold RbSr molecules and quantum simulations using arrays of Rydberg-coupled single Sr atoms. He coordinates the Quantum Delta NL Ultracold Quantum Sensing Testbed and the EU’s AQuRA transportable optical clock project. He is CEO of OpticsFoundry, which has the mission to make optical circuits for quantum devices easy to design, procure and operate.
[Top]
___________________________________________________________________________________
Invited Speakers
- Max Austin, The University of Texas at Austin, United States
Fourier Transform Spectroscopy Measurements of Electron Cyclotron Emission from Magnetic Fusion Devices - Birgitta Bernhardt, Technische Universität Graz, Austria
Dual Comb Spectroscopy for Electronic Fingerprinting - Jérôme Genest, Université Laval, Canada
Doing Dual Comb Spectroscopy Right - Sona Hosseini, Jet Propulsion Laboratory, United States
HOLMS: A Heterodyne OH Lunar Miniaturized Spectrometer for Detecting Water in the Lunar Exosphere - Ibrahim Sadiek, Ruhr Universitat Bochum, Germany
Precision Frequency Comb Spectroscopy: From Complex Halogenated Compounds to Reactive Plasmas - William Ward, University of New Brunswick, Canada
Advantages of Field-Widened Interferometry for High Spectral Resolution Applications
[Top]
___________________________________________________________________________________
Industry Program
The Industry Program will address disruptive projects and applications as a result of talent drain and transformative processes.
During the 2025 Industry Program, topics discussed at Toulouse 2024 will be expanded, and new topics will be added. However, the program is only the tip of the iceberg for interested attendees. These sessions encourage dialogue, vision, know-how and guidance.
This content model was enthusiastically received by the 500 participants at Toulouse 2024.
Background
We will focus on news, challenges, applications, opportunities and scalability in emerging technologies on a system or component level.
Johannes Kunsch, the Optica Sensing Congress Industry Chair answers the question: What is specific to the Optica Sensing Congress? It is not only a look at the science behind the talks, but also the networking and work-ready inspiration.
Objectives
The goal of the Industry Program is to pave the road toward substantial future growth and give orientation. There is great momentum in the optical sensing industry. This momentum should continue to grow and make optical sensing a preferred career path. The industry team decided to focus mostly on Infrared Photonic Circuits and Biomedical Infrared Spectroscopy and highlights the role of AI.
Chairs
Johannes Kunsch
Laser Components Germany GmbH, Germany,
Industry Chair
Borislav Hinkov
Silicon Austria Labs GmbH, Austria,
Industry Co-Chair
Committee
Johannes Kunsch, LASER COMPONENTS Germany GmbH, Germany, General Chair
Borislav Hinkov, Silicon Austria Labs, Austria, Co-Chair
Amber Czajkowski, Alluxa Inc., USA, Co-Chair
Shankar Baliga, LASER COMPONENTS Detector Group Inc., USA
Kurt Hochrein, Dexter Research Center, USA
Timothy Olsen, Omega Optical, USA
Industry Session I
Wednesday, 23 July 16:00 - 17:00
Speakers
Johannes Kunsch, LASER COMPONENTS Germany GmbH, Germany
Tarek Eissa, LMU München, Germany
Mihaela Zigman, LMU München, Germany
Mehdi Asghari, SiLC Technologies, USA
Borislav Hinkov, Silicon Austria Labs, Austria
Matthias Budden, Wired Sense, Germany
Ryszard Piramidowicz, VIGO Photonics, Poland
Mircea Guina, Tampereen Teknillinen Yliopisto, Finland
Werner Mäntele, DiaMonTech AG, Germany
Industry Session II
Thursday, 24 July 10:00 - 11:00
Speakers
Tarek Eissa, LMU München, Germany
Mihaela Zigman, LMU München, Germany
Matthias Budden, Wired Sense, Germany
Mircea Guina, Tampereen Teknillinen Yliopisto, Finland
Werner Mäntele, DiaMonTech AG, Germany
