Compact Hyperspectral Cathodoluminescence

The F-CLUE is the optical fiber coupled solution offering a flexible interface for Cathodoluminescence Imaging and Spectroscopy analysis.

Thanks to its rugged ultra-compact footprint and deported spectroscopy modules, it can be installed even on very busy microscopes and/or in harsh industrial environments or extreme conditions (clean room, mobile laboratories…).

Like the whole CLUE series, its compact and fully retractable collection interface offers the possibility to upgrade CL on any commercial microscope without any restriction on performance.

The accurate video assisted micropositioning of the mirror permits to optimize collection efficiency and guarantee the best performance and reproducibility of your CL measurement.

Controlled by Labspec 6 Simply Powerful software suite, F-CLUE features advanced unique functionalities for both fast imaging and spectroscopy analysis (KIA spectral database, SWIFT, cosmic ray removal, peak fitting, particle finder, mosaic, multivariate analysis, advanced 3D display…)

Segment: Scientific
Manufacturing Company: HORIBA France SAS

Flexible solution to fit any kind of environment, featuring:

•     Imaging and/or hyperspectral CL
•     Rugged optical fiber interface
•     Selection of ellipsoidal or parabolic retractable mirror to fit all sample types and applications
•     Powered by LabSpec 6TM Software
•    Fully motorized spectrometer
•    Optional RGB filters

Spectral Range

UV-VIS or VIS-NIR fiber dependent

Diamond turned collection mirror

ellipsoidal mirror
short & long working distances

200 mm retractable interface

Manual fine adjustment under vacuum

CL imaging detector

Standard: Panchromatic and monochromatic CL with ambient PMT
Options: Cooled PMT, IGA monochannel, photon counting PMT, time resolved PMT, RGB filters

CL spectrometer type

microHR (180mm) or iHR 320 (320 mm focal length), up to 3 grating turret, up to 2-entrance / 2 exit

Upgrade available

Upgrade from PL, MicOS systems

Electron beam control

CL-LINK for multiple acquisition processing (Analog, pulse mode, SE), Mapping linescan,
point measurement, Synchronization with spectroscopic detection, Control by external scan input of Electron Microscope


Spectroscopy and imaging powered by LabSpec 6™

Remote Controller


Clue Accessories

Polarization, ND filter, camera, EMCCD etc

SEM Accessories

LN2, He cryo-stages, EBIC detector and many other accessories to complement our CLUE Series add-on detectors

Defect Evaluation of GaN Epitaxial Wafer by CL
Defect Evaluation of GaN Epitaxial Wafer by CL
The threading dislocation occurs easily in GaN crystal grown on sapphire substrates. It is said that this is caused by the large lattice mismatch of sapphire and GaN. The crystal may seem to be uniform in the SEM image, but the dark spot such as the threading dislocation can be observed when measuring the CL intensity image at the wavelength (362nm) which corresponds to the band edge emission.
Luminescent Defects in Synthetic CVD Diamond Films Localized by Cathodoluminescence Spectroscopy
Luminescent Defects in Synthetic CVD Diamond Films Localized by Cathodoluminescence Spectroscopy
The characterization of synthetic CVD diamond material by hyperspectral cathodoluminescence spectroscopy and imaging allows the detection and accurate location of the promising NV luminescent point defects for innovative solid-state quantum mechanical systems. In this work we performed CVD epitaxial growth on a pattern of micro-pillars etched on a diamond substrate. Cathodoluminescence (CL) analysis revealed that NV centres were successfully localized at the edges of the pillars.
The Evaluation of Phosphor for White LEDs by CL Image
The Evaluation of Phosphor for White LEDs by CL Image
Phosphor plays a key role to obtain white light as for blue LED + phosphor and near ultraviolet LED + phosphors. In order to improve high bright white LEDs, it is necessary that the whole phosphor particle emits light homogeneously. When measuring with CL the phosphor used as white LED, the area which does not emit light in phosphor particle can be observed. CL system is used for evaluation of non-luminescent area to improve luminescent efficiency and characteristics.

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