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TimeMaster™
TM-20 LED Strobe Lifetime Spectrofluorometer

LED

Click here to view a technical note on the Comparison of the Lifetime Techniques

PTI engineers have developed a broad range of state-of-the-art pulsed light emitting diodes (LEDs) to be used as excitation sources with the EasyLife systems. These small but robust light sources are available in a broad range of wavelengths, from UV to NIR.

Pulsed LED advantages

The pulsed LEDs have certain distinct advantages over more conventional light sources, such as nanosecond flash lamps and pulsed lasers. In particular, they are

• Inexpensive
• Durable
• Require no maintenance
• Very stable pulse
• Fast
• Wavelengths from UV to NIR (280 to 670 nm)
• Small size
• Easily interchangeable (snap on - snap off)

Impressive Pulse Stability

6 Hours Repeat Acquisition	Repeat After 4 Days
Click on images to enlarge.

LED Source and PTI Patented Stroboscopic Detection

The LED source is used with the time-proven, PTI patented stroboscopic detection system. This is the same technique that is used in our renowned LaserStrobe system and offers the same benefits of high sensitivity, temporal resolution and the unique ability to utilize both linear and non-linear (arithmetic and logarithmic) acquisition time base. The result is a powerful and versatile lifetime instrument, capable of handling complex multiexponential decays with an underlying broad range of lifetimes.