Photonis bilamellar family: These sealed tubes use bilamellar optics to provide an ultrafast temporal resolution whilst maintaining excellent spatial resolution.

Acton SP-2358 Imaging Spectrograph

• 300mm focal length
• f/3.9 aperture
• Interchangeable triple grating turret
• Wavelength accuracy: +-0.02 nm
• Repeatability: +-0.05 nm
• Drive step size: 0.005 nm

Depends on combination photocathode / grating:

• S20 and 150 gr/mm grating blazed at 300nm : 150-900nm
• S20 and 150 gr/mm grating blazed at 500nm : 200-920nm
• S25 and 150 gr/mm grating blazed at 800nm : 380-950nm
• S1 and 150 gr/mm grating blazed at 800nm : 300-1400nm

Photocathode length (X):  18 mm

Number of spectral points in a streaked image:  625

Spectral range of a streaked image:  380, 190, 92 nm (with grating: 150, 300, 600 gr/mm)

Spectral resolution:  0.60, 0.30, 0.15 nm (with grating: 150, 300, 600 gr/mm)

Number of time-resolution units in screen (Nt):  675

Available Ranges (T):  200 ps to 1 ms

Single-shot time resolution (δt): δt = ΔT / Nt = ΔT / 675 * Limited to 1 ps

Readout type: Thermo-Electrically-Cooled at -10 °C

CCD chip size: 2048 x 2048 pixels; 30 mm x 30 mm

Digitizer: 16 bits

Coupling to streak tube: 1:1 Fiber optic taper

AXIS-TRS is an all-in-one system that is operated locally by connecting a monitor, a keyboard and a mouse.

It comes with an internal computer that controls the streak tube supplies, the sweep circuits, monitors voltage stability, performs different self tests and safety checks. It can also control other optional peripherals via the USB port (a laser system, for example).

All required software comes pre-installed on the system. It is used to:

• Control whole system and acquire images
• Control the laser system (optional)
• Plot lineouts along time axis or space axis
• save image in different formats

Remote control over Gigabit Ethernet :

• “Windows Remote Desktop”
• Web base GUI
• High level device servers (TANGO, OPC, etc…) are available.

Electrical input
Universal AC, 110-240V, 50-60 Hz

Certification
CE

Tests and Calibration
Before shipping, each system is tested on a femtosecond laser at the Advanced Laser Light Source (Canada)

Installation and Training
A qualified engineer is sent to your laboratory to install the system and train users

Streak Tubes
Other streak tubes in the Photonis product line are available. For example, some of them allow 1000 spectral resolution points with a compromise on time resolution.

Photocathode
S20, S25, and S1 cathodes are available

Grating
Standard system comes with a 150 gr/mm grating. The turret can accommodate 3 gratings. Therefore 2 more gratings can be added. Available gratings are 150 gr/mm, 300 gr/mm, 600 gr/mm and 1200 gr/mm. They come with different blaze wavelength (300nm, 500nm, 800nm, 1µm).

Kit for Transient Absorption Spectroscopy
This optional kit includes a synchronized white light source, special optical system and software plugins to allow AXIS-TRS to perform Ultrafast Transient Absorption Spectroscopy.

Blanking circuits
With the blanking option, streak tube is blocked during the time the signals sweeps back to its start position. This feature is required when the optical signal lasts longer than the sweep range.

Remote control over Optical Ethernet
Web-based user interface to operate system via optical Ethernet 1 Gb/s (1000 Base SX) on 2 SMA 905 connectors (or other common fiber optics standards).

Laser-triggered sweep unit for CPA lasers
Because of its sub-picosecond jitter, this unit allows the analysis of ultrafast events at repetition rates up to 5 kHz while conserving the excellent spatial and temporal resolution of the AXIS streak camera. This is the ideal tools ultrafast spectroscopy with large dynamic range and high signal-to-noise ratio. It requires about 100 µJ per laser pulse.

A – Only a fraction of the laser energy is taken to trigger photoconductive switches. This allows signal averaging over a large number of laser shots.

B – The signal is averaged over 1 million shots (~ 20 minutes) and time resolution is still subpicosecond.

Reference: “Observing strongly confined multiexcitons in bulk-like CsPbBr3 nanocrystals”
D. P. Strandell, P. Kambhampati,
J. Chem. Phys. 158, 154702 (2023).