DuoScan™ Macro and Sub-Micron Raman Mapping

DuoScan Raman Accessory for Fast Imaging

Raman Accessory for fast imaging

The DuoScan™ technology enables the ultimate flexibility for Raman imaging, including easy sub-micron Raman imaging, adjustable laser spot sizes, and 100% coverage of a sample for macro-mapping.

Segment: Scientific
Manufacturing Company: HORIBA France SAS

 

The innovative DuoScan™ Imaging system extends the imaging capabilities of HORIBA Scientific’s Raman instruments from sub-micron to macro-scale mapping. Generating confocal images becomes faster, easier and more flexible, from the deep UV to the IR.

The DuoScan™ Imaging technology available on the instruments of the LabRAM Series introduces a new imaging mode, based on a combination of scanning mirrors that scan the laser beam across a pattern chosen by the operator: a line for linear profiles, or an area for two-dimensional mapping.  It can be used to generate a rastored "macro laser spot" for large area mapping; alternatively, its 50 nm step piezo controllers are ideally suited for Raman mapping of sub-micron features.

How DuoScan works – the three modes

  1. Averaging mode

In averaging mode the laser spot is continuously scanned across a user-defined square surface

Comparison between standard point measurement and DuoScan averaging mode

Comparison between standard point measurement and DuoScanTM averaging mode with corresponding laser spot size and power densities on sample

2. Step-by-Step mode

In step-by-step mode a sample area is selected and the sample is scanned point by point across the chosen area.

Mapping without moving the sample with 50 nm step size

Mapping without moving the sample with 50 nm step size

3. Macro-mapping mode

Macro-mapping mode enables large sample surfaces to be raster-scanned to record an average spectrum across the whole surface, ideal for component distribution or to locate contaminents.

Macro-mapping with full sample coverage using DuoScan with motorized stage

Macro-mapping with full sample coverage using DuoScanTM with motorized stage

DuoScan™ Application Examples

Example 1 – Pharmaceutical Tablet

In this example a 12.5 mm by 12.5 mm pharmaceutical tablet is analysed using a DuoScan™ macro-pixel for fast large area mapping – this ensures that the entire surface area of the tablet is analysed, without ‘stepping over’ any small features.  Subsequently high resolution point-by-point mapping using the DuoScan™ piezo controlled mirrors allows a detailed image of microscopic features to be visualised.

Example 1 – Pharmaceutical Tablet

Example 2 – Carbon Nanotubes

Isolated SWCNTs aligned on a Silicon sample. The colors correspond to the integrated intensity of the Si band (red) and of the respective G bands of the CNTs (green and blue).

Example 2 – Carbon Nanotubes

DuoScan™ was used in macro-mapping mode to find the isolated CNTs. A high-definition image of the CNT was then obtained with DuoScan™ in step-by-step micro-mapping mode. The apparent width of the CNT is a convolution of the tube diameter with the laser spot size.

Sample courtesy of Dr Kalbac, Heyrovský Institute, Prague, Czech Republic

Other applications

  • Large area component mapping (contaminant screening, survey scans, etc.)

  • Chemical imaging at sub-micron scale

  • Raman analysis and imaging of photosensitive biological samples

  • Mapping on large and heavy samples that cannot be moved easily

  • Prevention of photodegradation of organic materials when working with UV excitation

  • Fast and uniform scanning over both small and large areas
  • Map area in step-by-step mode: 30 µm x 30 µm with a 50X microscope objective
  • Compatible with true confocal microscopes for high axial resolution
  • Operating spectral range from 220 nm to 1600 nm
  • Scanning step sizes down to 50nm

Request for Information

Do you have any questions or requests? Use this form to contact our specialists. * These fields are mandatory.

Related products

3D Surface and Volume Display
More 3D Surface and Volume Display

3D confocal volume control and display

APDA-372
More APDA-372

Ambient Dust Monitor

APMC-370
More APMC-370

Air Pollution Multigas Calibrator

Auto SE Accessories
More Auto SE Accessories

Customize your instrument

Auto Soft
More Auto Soft

Intuitive Auto-Soft Interface for the Auto SE and Smart SE

Batch Processing
More Batch Processing

High throughput data processing

CaptuR
More CaptuR

– Laser Trapping Solution - Raman Accessory for Life Science

CombiScope
More CombiScope

AFM and inverted light microscopy

CS-100F4
More CS-100F4

Multi-point Chemical Solution Monitor

Customize with VBS
More Customize with VBS

Scripts and ActiveX

Customized reporting
More Customized reporting

Create templates for fast data reports

DeltaPsi2 Software
More DeltaPsi2 Software

A Platform for HORIBA Scientific Ellipsometers

Eco Web
More Eco Web

Data Management and Reporting Software

EMIA-Step
More EMIA-Step

Carbon/Sulfur Analyzer

Epifluorescence
More Epifluorescence

Cooled fluorescence imaging cameras

EzSuite
More EzSuite

Powerful software suite for high-throughput label-free molecular interaction assays

F-CLUE
More F-CLUE

Compact Hyperspectral Cathodoluminescence

Fast Feed Back Auto Focus
More Fast Feed Back Auto Focus

Raman Accessory for Imaging

Flat Correction
More Flat Correction

Unique fluorescence removal tool

GDOES Accessories
More GDOES Accessories

Accessories for samples with various shapes, sizes and properties

H-CLUE
More H-CLUE

Versatile Hyperspectral Cathodoluminescence

i-CLUE
More i-CLUE

Fast Imaging Cathodoluminescence