Fabry–Pérot Expertise for Research and Industry
Fabry–Pérot technology – ultra-high-resolution spectroscopy
Fabry–Pérot spectroscopy is a powerful optical technique for measuring the spectral characteristics of light with remarkable precision.
At its core is the Fabry–Pérot interferometer, also known as a Fabry–Pérot cavity or etalon. This technology enables the sharpest measurements and the cleanest signal, producing patterns which provide detailed information about wavelength, frequency, and fine structure of light. This makes Fabry–Pérot spectroscopy ideal for applications requiring precise spectral analysis.
Fabry–Pérot Ultra-High-Resolution Spectroscopy
The Fabry–Pérot interferometer is a cornerstone of precision optics, but with that precision comes technical challenges that require deep knowledge to match.
Our Directors, Dr. Michael Foster and Dr. Jonathan Storey, are recognised as world-leading experts in Fabry–Pérot techniques, bringing their extensive experience to custom projects for clients.
Fabry–Pérot spectroscopy is a powerful optical technique for measuring the spectral characteristics of light with remarkable precision.
The Fabry-Pérot interferometer operates based on multiple-beam interference. It comprises two parallel, highly reflective surfaces that create multiple reflections of light between them. When the light strikes one of the surfaces, some is transmitted out while the remainder is reflected.
The Fabry-Pérot produces a circular fringe pattern similar to the Michelson pattern. However, the fringes are thinner, brighter, and more widely spaced. Fabry-Perot systems can accurately isolate, filter, or stabilise light, resolving the fine features of a transmission spectrum with high precision.
Challenges
Ultra-High Resolution Spectrometers
Our consultancy services and engineering capabilities will help you achieve high-quality imaging detection systems that provide state-of-the-art spectral resolution.
We have designed both fixed and tunable solutions, offering unparalleled levels of optical performance. We have also designed systems in both imaging and filtering configurations and operating in 300 – 2000 nm region, with working diameters of up to 200 mm!
If you require systems that represent the latest interferometric technology and are ideal for the most challenging of ground-based scientific measurements, from astronomical observations through to atmospheric LIDAR measurements, ISI can help.
Working with Fabry-Pérot systems is demanding and presents significant technical challenges. Designing and aligning the cavity with the necessary precision demands deep expertise; even slight imperfections in mirror flatness, alignment, or surface coatings can degrade performance. Thermal, mechanical and vibrational stability are constant concerns. Optimising parameters such as finesse, free spectral range, and cavity length often involves complex trade-offs depending on the specific application. Effective implementation necessitates careful design, precise fabrication, and expert tuning – all areas where specialised consultancy makes a critical difference.
Why Expert Support Matters
That’s where we come in. Our consultancy provides the expertise you need to design, build, and optimise Fabry-Pérot systems for your specific goals, accelerating your project, improving your outcomes, and saving you costly trial and error. Our team of engineers, scientists, and technicians has world-leading experience in developing optical-based instruments. We focus on understanding your needs so that we can help you create bespoke, correctly engineered, and innovative solutions.
Applications include:
- Astronomy
- Solar Observations
- High-resolution Imaging spectroscopy
- LIDAR
- High-resolution spectral measurement
Contact us
Contact IS-Instruments to find out more.
If you would like to discuss Fabry–Pérot spectroscopy in further detail or have a project you would like help with, please email us or fill out this form, and one of our experts will contact you.