Pulsed OSL (10 µs)

Maximum power, homogeneity and stability provided by the interchangeable OSL unit

Pulsed OSL (10 µs)

All lexsygsmart and lexsygresearch TL/OSL readers can be equipped with an interchangeable OSL unit containing up to three stimulation wavelengths. These are provided by high power stimulation LEDs or laser diodes. The integration of photo diodes provides the feedback for power control of each individual element, guaranteeing a stable stimulation source, independent of element aging.

LED/laser diodes stimulation

Available stimulation wavelengths:

(LED/laser diodes)
UV (365 nm), Violet (405 nm), Blue (458 nm), Green (525 nm), Yellow (590 nm), IR (850 nm), Red (620 nm)

Modes of operation for OSL

  • Continuous Wave OSL (CW-OSL)

  • Linear Modulated OSL (LM-OSL)

  • Pulsed OSL (POSL)


Select up to three wavelengths per OSL unit:

LED stimulations:

Module# L0403 – Blue LED stimulation 458 ± 5 nm (max. 100 mW/cm² at sample position)
Module# L0404 – IR LED stimulation 850 ± 20 nm (max. 300 mW/cm² at sample position)
Module# L0405 – Green LED stimulation 525 ± 20 nm (max. 80 mW/cm² at sample position)
Module# L0410 – VioletLED stimulation 505 ± 3 nm (max. 100 mW/cm² at sample position)
Module# L0411 – UV LED stimulation 365 ± 3 nm (max. 100 mW/cm² at sample position); for bleaching
Module# L0419 – Red LED stimulation (~620 nm)


Laser diode stimulation:

  • Rise/fall time: < 10 ns

  • ON-Time: 50 ns to continuous wave

 

Module# L0407 – Blue laser diode stimulation 445 ± 3 nm (max. 100 mW/cm² at sample position)
Module# L0408 – IR laser diode stimulation 850 ± 3 nm (max. 300 mW/cm² at sample position)
Module# L0409 – Violet laser diode stimulation 405 ± 3 nm (max. 100 mW/cm² at sample position)
Module# L50064 – Green laser diode stimulation 523 ± 8 nm (max. 50 mW/cm² at sample position)
Module# L50065 – Red laser diode stimulation 8638 ± 5 nm (max. 75 mW/cm² at sample position)