Detail

UV monochromator TMM 304

Our UV Monochromator TMM 304 is a Toroidal Mirror Monochromator for VUV applications for high performance ARPES systems

UV and VUV monochromator TMM 304 for high performance ARPES systems

UV and VUV monochromator TMM 304 for high performance ARPES systems

The TMM 304 is a high flux VUV monochromator optimized for use with the µSIRIUS. It features exchangeable gratings for various emission lines such as He I, He II or Xe. The design of the VUV monochromator produces light with a high intrinsic degree of linear polarized light. A rotatable frame allows a change from s to p polarization without breaking the vacuum. An optional polarizer cassette is available to increase the degree of polarizaion. The efficient pumping system results in extremely low operational pressures in the analysis system.

KEY FEATURES

High Photon Flux
Small Spot Operation
High Degree of Polarizaiton
Exchangeable Casettes for Various Gases
Rotatable Frame
Very Low Pressure in Analysis Chamber

MADE FOR THESE METHODS
RELATED PRODUCTS
APPLICATION NOTES
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MADE FOR THESE METHODS

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Angle-Resolved Photoelectron Spectroscopy detects the energy and angle distribution of photoelectrons to determine the electronic structure of solids.

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2

3D-Mott - 2D-CMOS/-CCD Detector

Combined ARPES and 3D Spin MOTT Detector

3D-VLEED - 2D-CMOS/-CCD Detector

Combined ARPES and 3D Spin VLEED Detector

APPLICATION NOTES

Small Spot UV Source

Small Spot UV Source

High resolution photoemission measurements demand not only a highest performance electron spectrometer, but also a UV source with high flux density and small spot size, especially for angular resolved studies. SPECS has developed a focused UV source on the basis of the proven technology of the UVS 300 source. Using a special capillary, this source can be focused down to a theoretical spot size of 500 micrometers.

Photoelectron spectroscopy with UVLS and TMM 304

Photoelectron spectroscopy with UVLS and TMM 304

Angle-integrated and angle-resolved photoelectron spectroscopy measurements were performed using the SPECS UVLS ultraviolet-light source in combination with the toroidal-mirror monochromator SPECS TMM304, which was equipped with two cassettes of optical elements in order utilize the HeI and XeI emission lines with photon energies of hν=21.22eV and hν=8.437eV,respectively.

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Product description

Article No.

Helium I Cassette for TMM 304

Replacement Helium 1 cassette for SPECS TMM. Installation by SPECS recommended.

2011000575

Helium II Cassette for TMM 304

Replacement Helium 2 cassette for SPECS TMM. Installation by SPECS recommended.

2011000580

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µFOCAL VUV OPTICS

UV Source Series

TMM 304 UV Monochromator — VUV monochromator and polarizer for ultraviolet light originating from gas discharge type sources. To be used for sample surface irradiation in conjunction with ultraviolet (UV) light sources like the UVS 300 or the UVLS.

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Cassette Replacement TMM 304

Cassette for Monochromator TMM 304 — Handling and exchange for TMM 304 cassettes: Helium I/II, Xenon (with 1200 or 2400 grating) and Polarizer.

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