Photoluminescence infrastructure

Luminescence and reflectance detectors

Avantes Avaspec 2048-14, Avantes Avaspec ULS2048CL-EVO, Avantes Avaspec HS-TC, Avantes Avaspec NIR-1.7

These fiber-connected CCD spectrometers allow the detection of luminescence and reflectance in the wavelength range of 180-1700 nm.

Luminescence measurements are useful for materials as well as molecular sciences for gaining information on both unwanted (impurity) and planned dopants in materials as well as the materials or molecules themselves. These device are used as detectors with our separate excitation sources, i.e. in cathodoluminescence, with Nd:YAG excitation and in reflectance measurements.

For more information, contact Mika Lastusaari.

Specifications:

  • Detection for the range 180-1700 nm.
  • Avaspec 2048-14: high resolution, low sensitivity
  • Avaspec ULS2048CL-EVO: moderate resolution, moderate sensitivity
  • Avaspec HS-TC: low resolution, high sensitivity
  • Avaspec NIR-1.7: optimized for near-infrared detection

For more information, contact Mika Lastusaari.

 

Illumination and luminescence excitation sources

Lotis TII Nd:YAG laser, Xe lamp coupled to LOT QD MSH 300 monochromator; Nuclide Corporation ELM2B electron beam; Thorlabs NIR-laser bundle; LOT QD LS0500 solar simulator

These light and excitation sources can be used to irradiate samples or for excitation of e.g. luminescence and photochromism

For more information, contact Mika Lastusaari.

Specifications:

  • Lotis TII Nd:YAG laser: 266, 355, 532 and 1064 nm; pulsed (9 ns)
  • Xe lamp: 220 nm and above.
  • Nuclide Corporation ELM2B: typical energy range 1 – 16 keV.
  • Thorlabs NIR-laser bundle: 808, 850, 980 and 1550 nm.
  • LOT QD LS0500: standard solar spectrum including the UV range.

For more information, contact Mika Lastusaari.

 

Thermoluminescence reader/analyzer (TL)

Mikrolab Laboratory Reader-Analyser RA’04

This device measures global luminescence emission during heating.

Typical uses of thermoluminescence include dosimetry, dating of archaeological and geological samples (age determination) and research of optical energy storage.

For more information, contact Mika Lastusaari.

Specifications:

  • Temperature range: room temperature to 600 oC.
  • Available gases: air.
  • Typical heating rates: 1 to 10 oC/s.
  • Typical sample cup volume: 20 μl.
  • Typical sample weight: 10 mg.

For more information, contact Mika Lastusaari.

 

Luminance measurement device

Hagner ERP-105 + Hagner Detector SD-27

This device measures the absolute photopic light intensity, i.e. photopic luminance. Can be used to measure e.g. the intensity of lights, glow-in-the-dark materials, and the fading of persistent luminescence.

For more information, contact Mika Lastusaari.

Specifications:

  • Detectable range: 0.01 – 20,000 mcd/m²
  • Same spectral response as human eye in well-lit conditions, i.e. photopic response

For more information, contact Mika Lastusaari.

 

Color spectrometer

Konica Minolta CM-2300d

This device measures the reflectance spectrum of a sample and determines colorimetric data such as L*a*b* under standard illuminants.

For more information, contact Mika Lastusaari.

Specifications:

  • Wavelength range: 360-740 nm with 10 nm steps
  • Observer condition: CIE: 2° and 10° colorimetric standard observer
  • Illuminant condition: CIE: A, C, D50, D65, F2, F6, F7, F8, F10, F11, F12
  • Color space / colorimetric data: L*a*b*, L*C*h, CMC (1:1), CMC (2:1), CIEDE94, CIEDE00, Yxy, Munsell, XYZ, MI, WI (ASTM E313-73), YI (ASTM D1925)

For more information, contact Mika Lastusaari.