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LaserTune—QCL

  • IR excitation
  • Molecular spectroscopy
  • Combination with fiber-coupled ATR measuring cell

Contact person: Wolf Wagner (Ph.D.)

 

The tunable LaserTune Quantum Cascade Lasers (QCL) made by Block Engineering are now available in several versions with tuning ranges 250, 500, 750 and 1000 cm-1 to be choosen in the overall wavelength range 5.3 - 13 µm. In this wavelength region a variety of molecular vibrations can be selctively excited. Even with an average power of up to 20 mW and a high spectral power density these lasers are still eyesafe.

LaserTune is controlled by a PC via USB port. It comes with its own software and can also be operated remotely with a lab automation software like LabView.

 

 

laser type

diode laser
Wavelength tunable

5.4 - 12.8 µm
peak power

up to 500mW
Repetition rate

Up to 3MHz
line width

2 cm⁻¹
Pulse duration

30 – 300ns

Specifications

  • Extremely compact laser with touch screen operation or externally via PC
  • The entire tuning range of 5.3 - 12.8 µm is covered with 4 individual LT4000 tuners, which are then recombined into one beam
  • Combinations of 2 or 3 tuners are also available. Examples in the table
Specifications LT4000 LT3000 LT2000
tuning range (µm) 5.3 - 12.8 6.2 - 12.8 7.4 - 12.8
Refresh rate (MHz) to 3 to 3 to 3
Max Peak Power (mW) 100 – 500 100 – 500 100 – 500
Line width signal (cm-1) 2 2 2
Pulse duration (ns) 30 – 300 30 – 300 30 – 300

Applications

  • MID-IR spectroscopy
  • Photothermal Imaging
  • gas sensors

Options

  • With an optional MCT detector, a flexible IR spectrometer can be set up that measures in reflection or transmission
  • Different combinations in the range 5.3 - 12.8 µm possible
  • Option Software Development (SDK) Kit for special applications
  • Optional integrated pointing laser as an adjustment aid
  • Individual tuners available as OEM

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