An internal LED excites luminescence from a phosphor coating in contact with a temperature-controlled Peltier heater/cooler.

The LabKit enables principles of fluorescence decay to be measured and demonstrated. The luminescence of a thermographic phosphor (TP), La2O2S: Eu, can be observed from 0 to 100 °C. The standard LabKit is intended for university physics, chemistry, and engineering laboratories. In the standard LabKit, a copper target is coated with a thin layer of phosphor and a thermocouple embedded in the copper target for temperature monitoring. The copper target is in contact with a Peltier Heater/Cooler which may heat or cool the sample as desired.The LabKit can also act as an instrument for evaluating other TPs either onboard the LabKit or by using an external light source such as a laser, laser diode or a light emitting diode (LED) if another excitation wavelength is required. Another alternative is to use fiberoptics to transport the excitation light to an external target and then transmitting the emission light back to the LabKit’s photomultiplier tube for analyzing the signal. By operating in this mode, the LabKit may be used to either calibrate an external phosphor sample or measure the temperature of an external target.

Lab Kit Specifications

Internal Light Source: LED at 365 nmTrigger Input: TTLTrigger Output: TTLTrigger  Source: internal/externalPhotomultiplier(PMT): Analog OutputPMT Gain: AdjustablePulse Repetition Rate: 12.7 to 2000 pulses per secondPulse Width: 0.8 to 74 microsecondsTemperature: 0 to >100 °C nominalHeater/CoolerCurrent Monitor: X to Y with Coarse and Fine Control KnobsFront Panel Temperature Readout (°C and°F)La2O2S:Eu Coating on Cu plateInternal Optical Filtering at 510 nm and 10 nm full width half maximumAll connections BNCUnit Power: 120 VAC

phosphor thermometry
relaxation rates
pressure sensitive paint
optical spectroscopy
temperature sensitive paint
chemistry and physics laboratory demonstrations
heat transfer studies
fluorescence lifetime measurements
thermographic phosphors
upconversion / two-photon
optical / electrical pulser generation
​pulse length adjustable
hackable - add arduino / raspberry pie components
LED driver - add your own star LED and resistor

LabKit with Oscilloscope
The Labkit: a Versatile Instrument

Link to our Article The Thermographic Phosphor Labkit from the Conference on Laboratory Instruction Beyond the First Year of College.   

Wikipedia Page for Phosphor Thermometry