Sign In

  • Forgot your password?
  • Need a new account?

Register


FT-MIR spectrometer | SIMTRUM Photonics Store

FT-MIR spectrometer(2000-16000nm)

SIMTRUM'S FT-MIR spectrometer is a highly peformant, compact and reliable spectrometer that is ideal for various applications in the mid-infrared. The concentration levels of CO2 or H2O in the interferometer volume are conveniently minimized thanks to a homemade, replaceable dessicant capsule. Thanks to its permanently aligned interferometer and solid-state reference laser, the FT-MIR spectrometer offers excellent stability in both intensity and wavelength scales.

The FT-MIR can accommodate various detectors, each displaying specific characteristics. Besides pryoelectric detectors (DLATGS), we offer a selection of thermoelectrically cooled (TEC) MCT detectors that enable achieving unprecented performances while keeping the instrument extremely compact. The FT-MIR can also be mounted with a liquid nitrogen (LN2) cooled MCT detector for demanding applications that require high signal-to-noise ratio (SNR) or specific setups with very low optical throughput. In its standard configuration, the FT-MIR can reach a resolution of 2cm-1 while our high resolution modules (available on request) can deliver up to 0.5cm-1.

FT-MIR spectrometer(2-12um

FT-MIR spectrometer(2-16um)with LN2 cooled MCT detector

Features

  • Compact
  • Adjustable spectral range
  • Dynamically adjustable resolution
  • Long lifetime
  • Removable fiber adapter
  • Low power consumption
  • USB 2.0 connection

Application

  • Mid-IR Optical Spectrum Analyzer
  • Liquid, thin-film or gas measurement
  • Material identification and quantification

 

 

 

 

Principle

Permanentely aligned interferometer

The heart of the FT-Rocket is dual corner-cube (retro-reflector) interferometer. The two corner-cubes are fixed to a common swinging arm, which rotates to create an optical path difference (with respect to the beam splitter) in the two arms of the interferometer.

This type of design is called a permanently aligned interferometer. This particular arrangement of the interfeormeter is known to be the most robust against vibrations and temperature drifts. It never has to be realigned. The swinging arm of the interferometer rotates on wear-free flexure system, making this mechanical system extremely robust and durable.

 

Solid-state reference laser

For measuring the movement of the mirrors, a solid-state reference laser is coupled into the interferometer. Compared to classic HeNe lasers, the solid-state lasers that we use are more compact and have a much longer life-time. They have a very low temperature-induced wavelegnth drift and, when kept at constant temperature with a Peltier element, their wavelength can be stabilized to a few PPM, thus providing a very accurate and reproducible wavelength scale. This is crucial for ensuring a day-to-day and unit-to-unit consistency.

 

 

General Parameters

Model LA-AR01-FTMIR-060-4TE LA-AR01-FTMIR-085-4TE LA-AR01-FTMIR-120-4TE LA-AR01-FTMIR-160-LN2 LA-AR01-FTMIR-160-DLA
  Beam-splitter material CaF2 ZnSe
  Spectral Range [cm-1] 5000-1660 6600-1200 5000-830 5000-650
  Spectral Range [μm] 2-6 1.5-8.5 2-12 2-16
  Detector Type MCT (4-TE cooled) MCT(LN2 cooled) DLATGS
  Detector Peak D*[cm Hz1/2 W-1 ]  >1×10^11 >8×10^9 >4×10^9 >5×10^10 >2.5×10^8
  Signal-to-noise ratio >80000:1 >40000:1 >40000:1 >70000:1 >8000:1
  Removable fiber-optic coupler Lensed (CaF2 fiber coupler) Reflective fiber coupler (90° off-axis parabolic mirror)
  Recommended fiber IFG(1-6μm) IFG(1-6μm) orPIR(3-18μm) PIR (polycrystalline) fibers, 3-18μm
  Internal reference laser Temperature-stabilized solid-state laser @850nm
  Resolution(unapodized) [cm-1] 0.5,2,4,8(user selectable)
  Wavenumber repeatability <10 PPM
  Scan frequency >4 Hz @ 4cm-1 >0.4 Hz @ 4cm-1
  Power requirement 12V / 10W max 12V / 6W max

 

Other Parameters

  Fibered interface Fiber core up to ∅ 900μm, NA=0.3, SMA 905 connector
  Free-space interface ∅ 12.7mm collimated (max ~30mrad half angle)
  Interferometer type Permanently aligned, double retro-reflector design
  A/D Converter 24 bit
  Amplifier 4 gain levels low noise trans-impedance amplifier
  Operating temperature 10℃-40℃
  Communication Interface USB 2.0
  Software Interface Windows 7/10/11 API for controlling the instrument via our DLL
  Dimensions 180mm×160mm×80mm (Without Dewar)
  Weight 1800g (Without Dewar)

We fully appreciate and value the multiple benefits that a dedicated, performant and reliable software can bring to your application. Automatic data collection, parameters changes, status diagnosis and many other essential tasks should be implemented as simply and as efficiently as possible in order to get the most out of your spectrometer. This philosophy led to the development of a multi-threading, cross-platform and versatile software application, the digital acquisition system or AoDAQ.

The AoDAQ simultaneously takes care of:

1. Handling communication with the FT-IR via USB

2. Processing raw signals to deliver a spectrum

3. Running a TCP Ethernet server

The AoDAQ can be installed on all sorts of computers, from desktop machines to embedded, low-power single board computers. Thanks to the hosting of a TCP server, the instrument data and parameters can be accessed locally and/or remotely. All communication with the instrument eventually reduces to a set of TCP/IP commands that allow to quickly acquire data, adjust parameters, monitor the instrument status etc. using the programming environment of your choice. 

 


What is the equivalent wavelength resolution of my FT-IR ?

Owing to its operating principle, a FT-IR delivers a spectrum uniformly sampled over a given spectral range in wavenumbers (ν), with units of cm-1. The wavenumber is simply defined as the inverse of the wavelength (λ). The resolution of an FT-IR is constant in wavenumber (Δν), but varies with wavelength (Δ λ) due to the inverse relationship between these two units. The conversion betwen wavenumber resolution and wavelength resolution is Δλ=λ2 · Δν and is shown in the graph below:

 

Resolution in [nm] as a function of wavelength in FT-IR systems

 

How to choose the best detector for my application ?

The choice of a detector is a most sensitive one as it contributes to a large extent to the overall quality of your measurement. We offers several types and models of detectors, namely extended InGaAs detectors (2 stage thermo-electric cooling), HgCdTe (MCT) detectors with either thermoelectric cooling (4 stages) or liquid nitrogen cooling as well as pyroelectric (DLATGS) detectors. Selection of a given detector is application driven, and depends on the spectral signatures that you are willing to analyze. In order to deliver a faire comparison between various types of photodetectors (or thermal detectors), the most widespread metric is the specific detectivity (labelled D*), which is given in the figure below for all of our available detectors.

Specific detectivity (D*) 

 

What configuration should I select for my application?

We offers two distinct classes of spectrometers: FTIRs without a built-in light source, such as the LA-AR01-FTMIR-120, and FTIRs which integrate a built-in emitter, such as the LA-AR01-FTMIR-FC-120. Source-free instruments can be used to characterize both samples (relative measurements) and optical sources (absolute measurements). FTIR with built-in sources can only be used to perform relative measurements, as light is modulated by the interferometer before being output. This configuration has the advantage of being robust to signal modification induced by stray-light or background thermal radiation.

 
Light routing in the LA-AR01-FTMIR-120 (up) and the LA-AR01-FTMIR-FC-120 (down)

Related products

Model Wavelength Range Resolution Detector  
  FT-NIR spectrometer 900-2500 nm 2/4/8 cm-1(user selectable) Extended type InGaAs PIN photodiode, 2TE cooled
  FT-MIR spectrometer 200-16000 nm 0.5/2/4/8cm-1(user selectable) MCT (4-TE cooled)
MCT (LN2 cooled)
DLATGS
  Fiber coupled FT-IR spectrometer 200-16000 nm 2/4/ 8cm-1 (user selectable) InGaAs (2-TE cooled)
MCT (4-TE cooled)
MCT (LN2 cooled)
  VIS-NIR-FIB spectrometer 350-2500 nm <1.5 nm silicon array detector (3648 pixels) 16-bit ADC.extended range InGaAs photodiode, 2TE cooled, 24-bit ADC.
  VIS-NIR-DR spectrometer 360-2500 nm 5 nm Extended range InGaAs detector

We are here for you!

 

 

 

Drop us an email at info@simtrum.com to get the Best Price today.   Want more technical information? Click Here for the professional Customized System/ Solutions.
     

 

Don't have time to search the products one by one? No worries. you can download the full range of SIMTRUM Product Line Cards.

Click it now.

 

Want to stay closer to the Market Dynamics and Technological

Developments? Just take 5 seconds to Sign In as a member of 

SIMTRUM, we will bring you the most up-to-date news. 

(Sign in button on the top right of the screen).

 



Search Reset
Compare Model Drawings & Specs Availability Reference Price
(USD)
LA-AR01-FTMIR-060-4TE
Spectral Range:2-6μm,Detector Peak D*:>1×10^11cm Hz^1/2 W^-1,Signal-to-noise ratio:>80000:1,Resolution:0.5/2/4/8cm-1(user selectable)
4-6week $29638.26
LA-AR01-FTMIR-085-4TE
Spectral Range:1.5-8.5μm,Detector Peak D*:>8×10^9cm Hz^1/2 W^-1,Signal-to-noise ratio:>40000:1,Resolution:0.5/2/4/8cm-1(user selectable)
4-6week $29638.26
LA-AR01-FTMIR-120-4TE
Spectral Range:2-12μm,Detector Peak D*:>4×10^9cm Hz^1/2 W^-1,Signal-to-noise ratio:>40000:1,Resolution:0.5/2/4/8cm-1(user selectable)
4-6week $29638.26
LA-AR01-FTMIR-160-LN2
Spectral Range:2-16μm,Detector Peak D*:>5×10^10cm Hz^1/2 W^-1,Signal-to-noise ratio:>70000:1,Resolution:0.5/2/4/8cm-1(user selectable)
4-6week $32651.58
LA-AR01-FTMIR-160-DLA
Spectral Range:2-16μm,Detector Peak D*:>2.5×10^8cm Hz^1/2 W^-1,Signal-to-noise ratio:>8000:1,Resolution:0.5/2/4/8cm-1(user selectable)
4-6week $31167.42

LA-AR01-FTMIR-160-DLA - Parameter

LA-AR01-FTMIR-160-LN2 - Parameter

LA-AR01-FTMIR-120-4TE - Parameter

LA-AR01-FTMIR-085-4TE - Parameter

LA-AR01-FTMIR-060-4TE - Parameter

LA-AR01-FTMIR-160-DLA - Download

LA-AR01-FTMIR-160-LN2 - Download

LA-AR01-FTMIR-120-4TE - Download

LA-AR01-FTMIR-085-4TE - Download

LA-AR01-FTMIR-060-4TE - Download

Accessories

Compare Model Drawings & Specs Availability Reference Price
(USD)