
In time-dependent single photon counting, detectors are used to record photons, thus determining the spectral range. According to the wavelength range and time resolution required by the experiment, Ultrafast can provide the following TCSPC detector options:
|
detector |
Instrument response function (FWHM) |
spectral range |
|
|
Photomultiplier (HA-PMT) |
250ps |
230-700nm |
|
|
Hybrid Photomultiplier (HA-PMT-50) |
50ps |
220-650nm |
|
|
Avalanche Photodiode (HA-MPD) |
50-200ps (depending on wavelength) |
400-900nm |
|
|
Photomultiplier (TE cooled) (HA-PMT-NIR) |
400ps |
950-1700nm |
|
● Application areas:
Time resolved fluorescence spectrometer is used to measure the lifetime of excited states emitted by molecules. As a result of photon absorption, molecules enter an excited state from the ground state. The lifetime of fluorescence is unique for each molecule and depends on the molecular environment. This characteristic makes time-resolved spectroscopy a powerful research tool that can be used for:
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photophysics |
cell biology |
|
photochemistry |
material science |
|
photobiology |
nanoscience |
|
|
|
Halcyone Pico uses an imaging spectrometer specially designed for time-resolved spectroscopy. This spectrometer has high spectral resolution and astigmatism correction design.
The design of the spectrometer (300mm, F # 6) matches the optical components in the system configuration and maximizes the overall performance of the spectrometer.
The monochromator has a 4-grating turntable with a motion bracket, which can achieve optimal wavelength coverage, luminous flux, and spectral resolution.
The UV enhanced aluminum coating on the monochromator mirror ensures high efficiency in fluorescence collection.
At the same time, HALCYONE provides very user-friendly software features that make complex measurements smarter and more automated:
● Support computer-controlled monochromators and PMT detectors.
● Support high-throughput spectrometer with CCD detector.
Consider pump and fluorescence wavelengths, and automatically adjust the angle of the computer-controlled nonlinear crystal.
● Automatic calibration of optical delay lines.
Computer controlled switching of spectral range (UV/VIS/NIR).
● Support computer-controlled translation of sample holders.
● Support automatic switching of filter wheels based on light intensity.
Save each individual dynamic scan, so that if the experiment is interrupted (due to laser fluctuations, power outages, etc.), all previous scans will not be lost.
