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

How do I control the pump beam polarization? Magic angle, depolarizer, and anisotropy measurements.

UFS December 31, 2022 No Comments

In the standard configuration, we use a broadband depolarizer for the pump. This way you don’t have to worry about the magic angle. The achromatic depolarizer used is either DPU25…

When using the Helios with an OPA pump and a white light probe it is not possible to set the compression of an amplifier pulses (i.e. the chirp) in a way that is optimal for both the OPA and the white light in Helios.

UFS December 31, 2022 No Comments

We have encountered this issue before with <40 fs laser pulses. To solve this problem you need to match the group velocity dispersion (GVD) for all beam paths. This is…

What does the Helios use to generate the white light? What are the specifications for this pulse (wavelength, energy)?

UFS December 31, 2022 No Comments

The white light is generated by a small (a few %) fraction of the fundamental laser output. The pulse energy for stable continuum generation is usually 1-2 microJ, the wavelength…

We will be using a number of different pump wavelengths for our experiments. How do the ‘Transport Optics’ assemblies that you sell make it easier for beam delivery into a spectrometer?

UFS December 31, 2022 No Comments

The routing (transport) optics kits are used to deliver the pump and probe beams to the Helios or Halcyone and to adjust the timing between various pump and probe beams.…

What is the pump wavelength range? How do we make the pump and the probe beams to have different wavelengths?

UFS December 31, 2022 No Comments

The pump wavelength range is determined by the OPA and/or the Harmonics Generator. There are several options for modifying the laser wavelength in a transient absorption experiment. One is to…

Laser pulse duration (35-50 fs vs 100-200 fs) effect on probe light generation in femtosecond transient absorption spectroscopy: white light stability, temporal resolution, optics damage.

UFS December 31, 2022 No Comments

Have you ever compared the white light stability and the Helios performance with 100 fs and 35 fs pulses from an amplified laser? I am wondering whether there are any…

Is there an electronic shutter to block the beams for dark noise reduction?

UFS December 31, 2022 No Comments

Yes. The spectrometer integration time is set to 800 ns (VIS) and 20 us (NIR) to minimize the dark noise.

What other equipment do I need to consider once I have decided on a Femtosecond Transient Absorption Spectrometer such as Helios?

UFS December 31, 2022 No Comments

You would need an excitation light source (laser) and an optical table large enough to accommodate the full set-up. Here are the things you should consider when shopping for a…

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Category: HELIOS

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