The fiber optic fluorescence lifetime (SeePhase™) family systems, based on its proprietary frequency domain “phase-locked” detection technology, allows the remote, real-time identification and measurement of chemical and biological fluorescent markers in the field.
Its compact package, low power operation, state-of-the art data processing and communications architecture and affordable price makes it a very attractive solution for a large number of applications. SeePhase™ system is based on measuring the laser induced fluorescence lifetime of target fluorophores in response to a spatially and temporally modulated laser light excitation signal at eye safe energy levels.
The fluorescence lifetime of the target fluorophores is measured using the principle of “frequency- domain” or “phase-locked” detection.
| Model No. | 500 | 1500 | 500 |
| Monitoring Mode | Frequency vs. Time | Frequency vs. Time | Phase vs Frequency |
| Frequency Mode | Phase-Locked | Phase-Locked | Frequency Sweep |
| Fluorescence Lifetime Range | 140 μsec- 100 nsec | 140 μsec- 100 nsec | 140 μsec- 200 nsec |
| Modulation Frequency Range | 20 kHz to 200 kHz | 20 kHz to 200 kHz | 20 kHz to 100 kHz |
| Modulation Frequency Resolution | 0.1 kHz | 0.1 kHz | 0.1 kHz |
| Excitation Source Typ e | Light Emitting Diode | Laser Diode | Laser Diode |
| Excitation Source Wavelength | 250-nm to 850-nm | 375-nm to 850-nm | 375-nm to 850-nm |
| Excitation Source Power | 4870 mcd | 1-mW to200-mW | 1-mW to200-mW |
| Detector | Photodiode or PMT | PMT | 2D-PMT |
| Emission Wavelength Selection | Optical Filter | Optical Filter | Optical Filter |
| Remote Sensing | Fiber Bundle | Collimated Fiber Bundle | Imaging Telescope |
| Fiber Optic Connector | Multimode-SMA | ||
| Data Display | LabView Graphical Interface | ||
| Data Communic ation | RS -232/USB | ||
| Power Supply | 12V/500 mA | 115/220 VAC External | 115/220 VAC External |
