A Horiba LabRAM HR Evolution Raman microspectrometer (30 - 4000 cm-1), with open space microscope, offering a large free space under the objective turret. Thus, we can use large sample holders like cryostats, high temperature cells, high pressure cells, or just large samples. In order to get high stability, the sample stage is hard coupled to the LabRAM HR, while focusing is achieved by adjusting the height of the microscope objectives instead of the sample stage. This microscope offers all the functions of the standard microscope. It includes high throughput achromatic coupling optics optimized to work from UV to NIR with maximum efficiency, icluding also Open Electrode CCD air-cooled to -60°C, 4 objectives 10x (numerical aperture of 0.25), long distance 50x  (NA=0.5), water immersion 60x (NA=1.2), and 100x (NA=0.9), and 2 gratings (600 and 1800 grooves/mm, respectively).

The Horiba LabRAM HR Evolution Raman microspectrometer is attached to two air-cooled solid state laser kits, at 532 nm (532 nm/100 mW), and at 785 nm (785 nm/ 100 mW).

Moreover, a Linkam PE120 thermoelectrically cooled stage is attached to the LabRam HR Raman spectrometer with a temperature range of -25°C to 120°C (heating/cooling rates of 0.1-20°C/min and a stability of ± 0.1°C/min).

• The LabRAM HR systems provide high spectroscopic resolution and a unique wavelength range capability that offers both great flexibility and high performance. They are widely used for standard Raman analysis, photoluminescence (PL), tip enhanced Raman scattering (TERS) and other hybrid methods.
• Photoluminescence (PL) measurements can be performed using the laser kits of the Raman spectrometer; The detection limit is given by the open Electrode CCD at 1050 nm.
• The unique high resolution mode is ideal for subtle band analysis such as that for phase (crystalline/amorphous), of proteins, weak bonding forces (such as hydrogen bonding) and semiconductor stress measurements – in fact most applications where it is important for the precise characterization of position or shape of the Raman spectral features. Band analysis with a resolution in the order of 0.3 cm-1 to 1 cm-1 is particularly suited to the high resolution mode. Its dual capabilities also enable more routine low/medium resolution Raman analysis and even broader band laser induced micro-fluorescence or luminescence to be conducted on the same bench-top instrument.
• The LabRAM HR has a true confocal pinhole with user controlled variable aperture. Unlike pseudo-confocal configurations (e.g., slit-binning methods) the confocal pinhole fully matches the laser spot and provides the highest spatial resolution with maximum signal throughput.
• Finally, the LabRAM HR spectrometer is equiped with a SWIFT FAST Confocal imaging system, suited for fast mapping applications (XY specifications:  repeatability  ≤ 1µm, accuracy  ±3µm, resolution 10 nm; Z specifications : resolution  0.01µm).