RAMaker

Your Vision, Our Mission.
Breakthroughs Made Real.

RAMaker

Your Vision, Our Mission.
Breakthroughs,
Made Real.

RAMaker

The RAMaker platform is where your most complex challenges are solved. We co-create the custom spectroscopic system that makes your vision a reality.

Built into the chamber355375405473488532633785830
ultravioletvisiblenear-infrared
Externally mounted2292482663251064

Deep ultraviolet to near infrared

229, 248, 266 and 325 nm reach resonance conditions in wide-bandgap materials and separate sp2 from sp3 carbon. 1064 nm escapes the fluorescence that buries Raman signal in tissue, polymers and pigments. Each mounts externally, because no single optical train serves both ends of that range — UV and NIR each need their own objectives, gratings and detector.

Six wavelengths, one sample position

Three lasers inside the chamber and up to three more added, every one landing on the same spot without realignment.

Ten wavenumbers from the laser line

A customized Bragg filter set opens the region a 50 cm-1 cut-off hides entirely: lattice modes, layer breathing modes in two-dimensional stacks, and low-frequency collective modes.

Angle-Resolved Polarized Raman and PL Imaging

Two angles rotate through 360° under software control — the polarization angle and the laser incident angle — and the software searches for the best-signal or zero-signal orientation automatically. For highly crystalline samples and thin films that is what makes lattice orientation readable rather than inferred.

Lifetime, not only intensity

Time-resolved photoluminescence and FLIM from 200 ps to 1 s, on the same confocal stage as the Raman measurement, with picosecond sources at 375, 405, 440, 473, 488 and 640 nm.

The environment is part of the instrument

−196 °C to 1500 °C, vacuum, and four-point probe measurements taken during acquisition rather than before and after it — so the electrical state and the spectrum belong to the same moment.

0.3 cm-1 resolution

Reached by physical configuration — 750 mm focal length with the 3600 gr/mm grating — not by a software setting. At that order peaks separate that are otherwise reported, and published, as one.

How RAMaker compares with MRID

Both instruments use the same parallel optical design and the same automated switching. They differ in how far each can be configured.

Capability comparison between MRID and RAMaker
RequirementMRIDRAMaker
Excitation wavelengths at one sample positionTwoUp to six
Wavelength range375–830 nm229–1064 nm
Lowest accessible Raman shift50 cm-1, edge filter10 cm-1, Bragg set
Spectral resolution1.8 / 1.3 cm-10.9 to 0.3 cm-1
SpectrographFixed focal length193–750 mm, up to four gratings
DetectionSingle detectorUp to two, 200–2500 nm
Raman and PL, mapping, polarized imagingYesYes
Fluorescence lifetime, TRPL and FLIM—200 ps to 1 s
Sample environmentOptional stages−196 to 1500 °C, vacuum, four-point probe
How it is suppliedConfigured productBuilt to specification

The Configuration Space

Excitation

Built in: 355, 375, 405, 473, 488, 532, 633, 785, 830 nm, maximum three in the chamber. Externally mounted: 229, 248, 266, 325, 1064 nm. Up to three further lasers can be added.

Raman shift

79 to 9000 cm-1. Low limit 10 cm-1 with a customized Bragg filter set.

Spectrograph

Focal length 193, 328, 500 or 750 mm. Up to four gratings selected from 150, 300, 600, 1200, 1800, 2400 and 3600 gr/mm, switched in software. Resolution 0.9 cm-1 standard, to 0.3 cm-1.

Detection

Up to two detectors covering 200–1100, 900–1700 or 900–2500 nm. TE cooled to −100 °C, UV/NIR enhanced coating. Dark current 0.0014 e−/pixel/s, read noise below 4.

Confocal optics

Slit 10 µm to 2.5 mm, software driven. 5 MP imaging with a 5 W LED source. Standard 10× and 50× long working distance objectives; 5×, 20×, 40×, 100× and UV objectives available.

Modes

Vacuum stage from −196 °C; heating stage to 1500 °C; four-point probe measurement during acquisition.

Automation

Laser source and Raman filter switching under software control. Rayleigh correction in a single click. VIEW and SCAN modes switch in software. Laser power dropped below 0.1% for viewing.

Laser power control

Continuous neutral density filtering, OD 2.0 to 0.04, combined with 1 mW software steps. Usable output down to 0.01 mW, with error held under 1%.

Measured performance

Third-order silicon peak resolved at S/N better than 20:1. Spectral repeatability ≤0.1 cm-1, measured on the silicon 520 cm-1 line with a 50× objective across 50 repeats. Laser spot position holds within 1 µm when switching objectives.

  • United States: US 11,340,114 B2
  • Taiwan:  I 709732

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