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Features Include :
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Fluorescence lifetimes from 30picoseocnds to
10microseconds
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Spectral range 300-850nm
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High dynamic range and temporal resolution
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Time Correlated Single Photon Counting operation
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PC plug-in card for TCSPC
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Fully computer controlled through Windows software
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Computer controlled Time Resolved Emission Spectra
acquisition
Full data
reconvolution using a non-linear least square fitting
routine
The LifeSpec-Red is a compact, high performance, computer
controlled spectrometer for the rapid measurement of
fluorescence lifetimes based on the technique of Time
Correlated Single Photon Counting. The LifeSpec-Red can be
flexibly configured with a choice of high repetition rate,
short pulse length, excitation sources with selectable
wavelength spanning the UV-Visible (picosecond
semiconductor diode lasers and pulsed light emitting
diodes (LED)). For further details of these sources please
refer to table 1 below. The LifeSpec-Red is supplied with
a peltier cooled single photon counting sensitive PMT with
spectral response 185-850nm.
The LifeSpec Red consists of the following hardware :
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Choice of short pulsed excitation
source (see EPLs below)
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Sample chamber with liquid cooled
cuvette holder and temperature monitor,
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100 mm focal length low temporal
dispersion, high stray light rejection emission
monochromator. Computer controlled wavelength selection,
manual slit selection, wavelength accuracy 1nm
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Single Photon counting sensitive
detector wavelength response 300-850nm. Instrumental
response function 200ps. Supplied in room temperature
housing, with integral HV supply
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TCC900 card for TCSPC data
acquisition
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Dedicated PC running F900 software
for comprehensive spectrometer control, performance
monitoring, fluorescence lifetime data acquisition and
analysis library
EPLs - Edinburgh Picosecond Diode Lasers
The EPL picosecond diode
lasers have been designed as a light source for TCSPC
systems. They have been pre-adjusted for the best
pulsewidth and spectrally purified output. A choice of
10 repetition rates which match the TCSPC electronics of
the Lifespec are available.
Picosecond Pulsed Light Sources
| |
|
EPL 375 |
EPL 405 |
EPL 445 |
EPL 475 |
EPL 635 |
| Wavelength (±10
nm) |
[nm] |
375 |
405 |
445 |
475 |
635 |
| Linewidth (nm) |
[nm] |
<2.0 |
<2.0 |
<2.0 |
<2.0 |
<2.0 |
| Max Pulse Width
@10MHz |
[ps] |
90 |
90 |
100 |
90 |
100 |
| Typical Pulse
Width @10MHz |
[ps] |
60 |
70 |
95 |
85 |
95 |
| Typical Average
Power @20MHz |
[mW] |
0.080 |
0.35 |
0.15 |
0.15 |
0.30 |
| Min. Average
Power @20MHz |
[mW] |
0.065 |
0.25 |
0.10 |
0.10 |
0.10 |
| Typical Peak
Power @10MHz |
[mW] |
80 |
350 |
65 |
100 |
90 |
| Min Peak Power
@10MHz |
[mW] |
150 |
150 |
55 |
55 |
55 |
Pulse Repetition Frequencies
for EPLs
| Pulse Repetition Frequencies |
20 MHz |
10 MHz |
5 MHz |
2 MHz |
1 MHz |
500 kHz |
200 kHz |
100 kHz |
50 kHz |
20 kHz |
| Pulse period |
50 ns |
100 ns |
200 ns |
500 ns |
1 ms |
2 ms |
5 ms |
10 ms |
20 ms |
50 ms |
Software Interface :
The F900
advanced software is a user friendly package providing the
user with complete instrument control. The F900 software
controls measurement set-up and data acquisition all
through a transparent menu. Control of the hardware
settings on the TCC900 card are easily accessed through
the F900 software. The software also provides the user
with decay curve analysis for up to four exponential decay
processes.
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Information
System Flexibilty :
The modular design of every
spectrometer provides maximum flexibility to meet the
requirements for a wide range of applications. We can
offer a range of accessories for use with the instrument
but we also have off the shelf up-grade routes that are
quick and easy to implement.
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Information
Data Acquisition :
The LifeSpec-Red utilises the technique
of Time Correlated Single Photon Counting (TCSPC) for
fluorescence lifetime data acquisition.
>> More
Information
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Datasheet (2mb)