News
DISB Spectrometer Electronics with Fast Timing for Instrument Integrators
2018-06-28
In this post, you can read about our compact DISB electronics specifically developed with OEM instrument makers in mind. If you have any questions about our spectrometer electronics, you are always welcome to contact us to learn more and maybe arrange a free demo. DISB spectrometer electronics DISB (Digital Image Sensor Board) is Ibsen's own developed OEM spectrometer electronics. It comes with an SPI interface, which makes it ideal for fast and easy integration into your instrument. It offers fast readout – up to 600 Hz for 2048 pixels – and accurate timing control in 200 nanosecond steps with only 10 nanosecond
Precision Control Over Your Spectrometer
2018-06-12
- a Necessity for Your LIBS Instrument Laser Induced Breakdown Spectroscopy (LIBS) is an extremely versatile spectroscopic technique that can be used to analyze the atomic composition of virtually any material. In a LIBS system, a short laser pulse is used to ablate material from the surface of a sample. The laser pulse energy will be high enough to create bright plasma on the surface of the sample. When choosing a spectrometer for your LIBS application there are various parameters that are important, depending on your requirements. Ibsen believes that the 3 following features are among some of the most
Grating Math: What is the Largest Groove Density I can Use in my Spectrometer?
2018-05-07
A grating with high groove density has a high dispersion. This means that the angular separation of wavelengths from the grating is large. It can be desirable to choose a grating with high groove density for two main reasons: To obtain a compact design (for a wide wavelength range) To obtain a high resolution (for a narrow wavelength range) However, there is a physical limit to how high the grating groove density can be. In this post we will derive a simple formula for calculating the maximum groove density GMAX for a grating that should cover a certain wavelength range λMIN
A new compact EAGLE for Spectral Domain OCT
2018-04-24
Ibsen is introducing a new spectrometer platform specifically targeted Optical Coherence Tomography. From this platform, Ibsen has just launched an 840 nm highly efficient new EAGLE OCT-S spectrometer with best in class optical throughput and compact size for Spectral Domain OCT. https://ibsen.com/products/oem-spectrometers/eagle/ comprises high resolution, compact, and robust spectrometers, suited for OEM integration into medical and industrial-grade instruments for applications like Raman and SD-OCT. The new EAGLE OCT-S EOS-121 spectrometer is very compact due to the use of Ibsen Photonics’ in-house produced wide bandwidth transmission gratings. These unique gratings furthermore enable us to offer higher efficiency than any competing technology. The wavelength range
Scaling of wavelength range in transmission grating based spectrometers
2018-03-21
This note describes how an existing spectrometer wavelength range can be scaled by changing the groove density of the transmission grating, without needing to change other aspects of the design. The starting point is a known spectrometer with a grating with groove density G0, detector width LD, and covering the wavelength range λmax,0 – λmin,0. The focal length of this spectrometer is given by: LF= LDcos (β) G0 (λmax,0 - λmin,0) where β is the diffraction angle of the center wavelength. The ratio between maximum wavelength and minimum wavelength for a given transmission grating based spectrometer is always a constant,