PRISM - Confocal Micro Raman Mapping System

PRISM - Raman Spectroscopy
Raman Spectroscopy
PRISM - Raman Spectroscopy
PRISM - Raman Spectroscopy

  • Optimized design for user.

  • Up to two excitation wavelength available.

  • < 1㎛ x, y spatial resolution and < 2㎛ depth resolution with true confocal design.

  • Compact size frame, very few moving parts.

  • Very fast mapping. (50 x 50 point about 1min : exposure time 0.01s)

  • Fully motorized system. (Laser selection, Power control, Motorized slit, etc.)

 
Features

▶ Aberration Corrected Spectrograph

  • Aberration corrected design based asymmetric Czemy-Turner with diffraction optics

  • Excellently aberration corrected over the whole pixels on CCD array

    • RMS spot radius on the CCD < 10㎛​

  • Excellently improved throughput and resolution compared to traditional Czerny-Turner spectrograph

  • Best performance for low light application such as Raman spectroscopy

Traditional spectrograph VS NOST spectrograph

FEX_Upright

▶ Motorized Slit

  • Precision entrance motorized slit

  • The slit width can be adjusted between 10 to 1000㎛ with 10㎛ step resolution

▶ Fast Mapping

  • Fast mapping function is able to offer many advantages to the user

  • It is possible to use readout times as short as around 10㎳ per spectrum

    • Depending on CCD model line; lower is possible too​

MOS2 fast raman mapping - 2,500 spectrum acquired in 58 sec - 50㎛ x 50㎛ - 50 x 50 pixels

MOS2 fast raman mapping - 2,500 spectrum acquired in 58 sec - 50㎛ x 50㎛ - 50 x 50 pixels

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▶ Wide Range Mapping

  • There are no limits to mapping area imposed by the objective FOV

  • From micro area to macro area with micro spatial resolution

  • Max range : 75㎜ x 50㎜

    • Depending on sample stage model​

Aspirin tablet raman mapping - 250,000 spectrum acquired - 1,500㎛ x 1,500㎛ - 500 x 500 pixels

Aspirin tablet raman mapping - 250,000 spectrum acquired - 1,500㎛ x 1,500㎛ - 500 x 500 pixels

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▶ Laser module

  • Multiple excitation lasers

    • Supported wavelengths : 325nm, 488nm, 514.5nm, 523nm, 633nm, 785nm, etc.

  • Power control

    • Includes 11 steps motorize ND filter controller

  • Laser fiter selector

    • Motorized 2-positioning laser filter selector


▶ Spectrograph

  • Feature

    • Adopt aberration corrected spectrograph for high-throughput and efficiency

    • On-axis and interchangeable grating turret design

  • Spectral resolution

    • 1.5cm-1 per CCD pixel @1800gr/mm

    • 2.3cm-1 per CCD pixel @1200gr/mm 532 nm laser


▶ PRISM

  • Objective

    • 20X Mplan (NA=0.4, WD=1.2mm)

    • 100X Mplan (NA=0.9, WD=0.15mm)

    • Spatial resolution : below 1 micron (x, y)

  • Confocal Slit

    • Optimized 1 airy unit with continuous variable confocal slit

    • This leads to a xy spatial resolution improvement as well as along the optical axis (z-direction)

  • Imaging

    • White light Koehler illuminator, 3M CMOS camera


▶ TE cooled CCD

  • Pixel size

    • 26 x 26㎛

  • Active pixels

    • 1024 x 127

  • BVF (Back illuminated CCD) or FI (Front illuminated CCD)


▶ Motorized microscope xyz stage

  • Travel range

    • 76 x 50nm

  • Resolution

    • 50nm (X/Y), 2nm (Z)

  • Mapping speed

    • 50 x 50 pixels < 1min (exposure time 0.01s)


▶ Computer interface

  • Through single USB connector, some accessories may require additional USB and RS232 ports


▶ Fiber port

  • Optional for adding external laser


▶ Physical dimensions

  • 360mm(W) x 690mm(D) x 400mm(H)

Specification
 
 

▶ PRISM - Basic

  • 1 Laser

  • Motorized Slit

  • Manual changed spectral range

  • Interchangeable grating


▶ PRISM - Mid

  • Up to 2 Lasers

  • Adjustable confocal pinhole

  • Automated grating

  • Interchangeable grating


▶ PRISM - UV

Models
 

▶ Temperature Controlled Microscope Stage

  • Temperature range

    • -196℃ ~ 420℃

  • Sample area

    • 53.5 x 43mm

Accessory