Optics laboratory

Optical and hybrid techniques

The laboratory is aimed specifically for diffuse optical tomography (DOT) and photoacoustic tomography (PAT) research. The facilities and instruments are suitable for studies that use for example biological samples and phantom targets.

Devices and instrumentation

  • Nd:YAG – OPO laser
    • Fiber optic coupling/free beam
    • Optical energy up to hundreds of millijoules
    • Pulse duration ≈ 3 ns
    • Wavelength from 660 to 2600 nm
  • PAT system
    • Tomographic measurement or single angle measurement (e.g., quantification of material properties)
    • Nd:YAG laser light source
    • Different acoustic receiver options
  • Time-domain DOT system
    • Nd:YAG laser light source
    • Avalanche photodiode detector
    • Fiber optic switches for source and detector control
Pulsed laser

Supporting hardware

  • Continuous wave single-mode diode laser 785 nm
  • Picosecond microchip laser 515 nm
  • Commercial and in-house built drive circuits for LEDs and laser diodes
  • Sensors and meters to measure optical energy
  • Optical detectors
  • HEPA-filtered and cooled room air
  • The lab space has a laser protection (environment, personnel)
  • Direct access to 3D printing devices, machining facilities and electronics workshop (Dept. of Technical Physics)
Oscilloscope