Ultra-High-Resolution Spectroscopy
Title for Ultra-High-Resolution Spectroscopy
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Ultra-High-Resolution Spectrometers (Fabry-Pérot)
For the most demanding of applications, ISI offers a range of bespoke, ultra-high-resolution spectrometers using Fabry-Pérot technology. With our instruments, spectral resolution on the fm is possible.
Our Directors, Dr Michael Foster and Dr Jonathan Storey are recognised as world-leading experts in Fabry-Pérot techniques and bring that knowledge and experience to custom projects for clients.
Fabry-Pérot interferometers are optical resonators used for high-resolution spectroscopy. They use the phenomenon of multiple-beam interference that results when light shines through a cavity bounded by two reflective parallel surfaces. When the light hits one of the surfaces, some is transmitted out, and the remaining part is reflected. Fabry-Pérot produces a circular fringe pattern, similar to the Michelson pattern. However, the fringes are thinning, brighter, and more widely spaced. As a result, these instruments can detect and resolve the fine features of a transmission spectrum with high precision.
All our systems are constructed bespoke to order.
Product Specifications
Ultra-High Resolution Spectrometers
Our ultra-high-resolution spectrometers use Fabry-Pérot technology combined with high-quality imaging detection systems to provide state-of-the-art spectral resolution.
Both fixed and tuneable solutions are possible offering unparalleled levels of optical performance. Systems are available operating in the region of 300 – 2000 nm with working diameters up to 200 mm!
These systems 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. Systems can be used both in an imaging and filtering configuration depending on the specific requirement of the client.
These instruments typically contain a series of interference filters combined with double or triple Fabry-Pérot etalons used in series to provide both high levels of background suppression as well as high resolution and transmission. Instruments are typically mounted in a thermally controlled hermetically sealed container to ensure maximum stability and control.
All systems are constructed bespoke to order.
As well as providing the complete solution, we also offer a comprehensive design service to optimise the Fabry-Pérot configuration particular to the customer’s requirements.
Applications include:
- Astronomy
- Solar Observations
- High resolution Imaging spectroscopy
- LIDAR
- High resolution spectral measurement
Bespoke Solutions
Our team of engineers, scientists, and technicians has world-leading experience developing optical-based instruments. We are focused on understanding your needs, so we are able to develop bespoke, correctly engineered and innovative solutions for you.
We recognise that development can be costly, so we consult with you throughout any programme of work. Our unique approach allows costs to be kept at a minimum, keeping you in control of your budget.
Raman Spectrometer
Our core spectrometers use a fibre rather than an aperture to collect information from the target substance making it significantly more sensitive to identifying Raman scatter.
We offer a choice of excitation wavelengths: 355 nm, 535 nm, 785 nm, and 1064 nm and will select the wavelength appropriate to the sample.
ODIN Deep UV Raman Spectrometer
ISI has developed ODIN, a compact, deep UV Raman spectrometer with a laser custom built by Toptica and operating at 228.5 nm.
Deep UV Raman spectroscopy can detect, identify, and quantify substances at much lower concentrations than is possible with near-UV, visible or infrared instruments. Deep UV is particularly useful for measuring complex biomolecules, chromophores and aromatics which have a high fluorescence and are susceptible to degradation when measured at higher-powered wavelengths.
Raman Spectrometer
Our core spectrometers use a fibre rather than an aperture to collect information from the target substance making it significantly more sensitive to identifying Raman scatter.
We offer a choice of excitation wavelengths: 355 nm, 535 nm, 785 nm, and 1064 nm and will select the wavelength appropriate to the sample.
HES Spectrometer
All the spectrometers in our HES range are high throughput instruments as a result of using a fibre rather than a slit to focus light at the target substance.
This results in a superior signal-to-noise ratio over a Czerny Turner instrument. Our sampling service will select a 1mm, 2mm, or 3mm fibre with photon-counting CCD depending on the substance to be measured.
Contact us
Contact IS-Instruments to find out more
To overcome this issue, ISI now offers sampling as a service. Contact us to discuss your requirements. The samples can be shipped to us, we will make the appropriate measurements and send you the results.
To find out more, email us / fill out this contact form and one of the team will be in touch.