SPECTROMETERS
HELIOS

Femtosecond Transient Absorption Spectrometer

320 - 2400 nm

EOS

Nanosecond Transient Absorption Spectrometer

350 - 2200 nm

HELIOS IR

MID-IR Femtosecond Transient Absorption Spectrometer

2 - 13 µm

HALCYONE Femto

Fluorescence Upconversion Spectrometer

270-1600 nm

HALCYONE Pico

TCSPC Fluorescence Spectrometer

230-1700 nm

OPTICAL PARAMETRIC AMPLIFIERS

APOLLO-Y

Optical Parametric Amplifier

For Ytterbium Lasers

APOLLO-T

Optical Parametric Amplifier

For Ti:Sapphire Lasers

TIME RESOLVED MICROSCOPY

HELIOS Microscope

Femtosecond Transient Absorption Microscope

WIDEFIELD

HELIOS Microscope

Femtosecond Transient Absorption Microscope

CONFOCAL

LASERS
ASTRELLA

High energy, one-box ultrafast Ti:Sapphire amplifier by Coherent

SOLSTICE

High energy, one-box ultrafast Ti:Sapphire amplifier by Spectra-Physics

HYPERION

Compact, variable repetition rate ultrafast Yb amplifier by Ultrafast Systems

EDUCATIONAL
KRONOS

Educational Flash Photolysis Spectrometer

450-750 nm

ACCESSORIES

SURFACE XPLORER

Data Analysis Software

MAGNETIC STIRRER BEAM ROUTING OPTICS

HIGH SPEED SPECTROMETERS

UV-VIS | NIR | SWIR

MONOCHROMATOR

TRANSLATING SAMPLE HOLDER

Custom Moving Pattern

OPTICAL DELAY LINE
SUPPORT
SALES

Category: HELIOS

We did some experiments with the samples that we know very well and we noticed that the kinetics are distorted.

UFS December 31, 2022 No Comments

If a kinetic profile appears to be distorted (non-exponential, wrong lifetimes) it usually means that the delay stage needs to be realigned. Please refer to the probe alignment section of…

In the data acquisition software we get, as an output file, the difference between the absorbance with and without the pump pulse present. Is it possible to access the two measured sets of data before they are subtracted?

UFS December 31, 2022 No Comments

There is an option to save ‘raw data’ in the current Helios software. It is the measured spectra prior to the calculation of the delta A. That will produce two…

We are obtaining artifacts and this concerns me somewhat about whether this has to do with the algorithm for calculating the absorption. Can you comment on whether we are in fact measuring a true pump-on/pump-off intensity ratio, and whether there are any algorithm short-cuts that could be responsible for these artifacts in intensity?

UFS December 31, 2022 No Comments

The algorithm itself cannot be responsible for the artifacts (see its complete description in this knowledge base entry). We recommend checking if you have any spatial chirp and the second-order…

Is the chopper synchronized to the laser frequency to block every other laser shot, or does it run at a slower speed?

UFS December 31, 2022 No Comments

The chopper is synchronized to the laser to block every other laser pulse.

Is it possible to measure solid samples by reflection?

UFS December 31, 2022 No Comments

Yes, all our spectrometers, as well as the Microscope extension for Helios, have the reflection option.

We will be looking at both solution-based samples as well as films. Do you provide different sample holder assemblies to accommodate this?

UFS December 31, 2022 No Comments

The standard sample holder is for liquid samples and is equipped with a magnetic stirrer. An optional translating sample holder is also available. We can also offer temperature-controlled and cryostat-based…

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Category: HELIOS

We did some experiments with the samples that we know very well and we noticed that the kinetics are distorted.

In the data acquisition software we get, as an output file, the difference between the absorbance with and without the pump pulse present. Is it possible to access the two measured sets of data before they are subtracted?

Is the chopper synchronized to the laser frequency to block every other laser shot, or does it run at a slower speed?

Is it possible to measure solid samples by reflection?

We will be looking at both solution-based samples as well as films. Do you provide different sample holder assemblies to accommodate this?

What formulas are used to calculate absorption spectra?

When it is useful to have a reference channel, and how it is implemented?

Could the HELIOS be upgraded later with the EOS capability?

Can Helios and Eos both use the same detectors and software?

Category: HELIOS

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