Non-contact measurement of elastic properties and spin waves in addition to chemical composition and molecular structure
Brillouin-Raman Microspectrometer Nanofinder

Overview：Brillouin-Raman Microspectrometer Nanofinder

This newly developed instrument combines the functionality of confocal Raman and Brillouin micro-spectroscopy. In addition to information of the chemical composition and the molecular structure (from Raman scattering), information of mechanical (elastic moduli) as well as spin waves properties (from Brillouin scattering) can be obtained, offering the possibility to analyze samples from multiple angles simultaneously. The optical measurements allow non-contact and non-destructive analysis without touching the sample. Nanofinder's dedicated software enables simultaneous Raman and Brillouin spectroscopy measurements and supports confocal imaging using a motor - or piezo-stage.

Features

• Simultaneous Raman/Brillouin spectroscopy measurements of the same point on the sample
• Chemical composition, molecular structure, stress distribution + mechanical properties (elastic moduli), spin waves
• Non-contact, non-destructive
• High spatial resolution confocal measurements
  XY: <300 nm, Z: <700 nm@532 nm
• Surface and depth analysis

Applications for Brillouin spectroscopy

• Elastic modulus measurement of various materials
• Living cells, biomaterials: viscoelastic properties
• Cosmetics: viscoelastic properties
• Plastics: elastic properties, uniformity, aging, phase transition
• Glasses: elastic properties
• Adhesives: solidification status
• Thin films and layers: mechanical properties
• Magnonic devices: spin waves visualization

Spectrometers and laser rejection filters for Brillouin scattering

The Brillouin spectrometer unit employs the patented Brillouin VIPA (Virtually Imaged Phased Array) technology to achieve sub-GHz resolution in combination with 4-pass Fabry-Perot etalon optics (PK: Pump Killer) to suppress the laser line by more than 60 dB (including VIPA suppression, overall effective contrast >110 dB). An additional external PK unit for further laser suppression in, e.g., extremely high reflective samples is also available as an option.

The Raman/Brillouin system can be adapted to both upright and inverted microscopes. The Brillouin signal is delivered to the Brillouin spectrometer via a single-mode optical fiber as standard.

Measurement example

Raman and Brillouin spectra of LiNb03 (lithium niobate)

Raman Brillouin Scatter Imaging｜Hair Treatment Products

Simultaneous measurement of Raman and Brillouin

References

References regarding this device can be downloaded by clicking on the image below.

Spin Wave ImagingUsing the Confocal Brillouin/Raman Microscope Nanofinder®
569 KB

Confocal Brillouin / Raman / Nanoindentation Combined System
4,7 MB

Surface Acoustic Wave (SAW) measurement
1,5 MB