miniRaman spectrometer

World smallest Raman spectrometer

miniRaman spectrometer specification

miniRaman spectrometer has the following output specification:

lasers at the wavelength: 660 nm and 785 nm

laser power can vary between 2-30 mW at 660 nm, 15 to 150 mW at 785 nm

spectral range 2750-4500 cm-1 at 660 nm, 400-2500 cm-1 at 785 nm

spectral resolution 10-15 cm-1 (depending on a spectral range)

wavenumber accuracy ±2.5 cm-1

miniRaman spectrometer sensitivity from laser at 785nm (determined as SNR of polystyrene spectrum)
SNR should be in the range 250:1 to 350:1 from 785nm laser (spectral range 400-2700cm-1) at the following parameters:

laser wavelength: 785nm

laser power: 100mW

integration time: 0.1s

number of repetitions: 1

CMOS gain 25

CMOS binning: 8 pixels

objective: dry microlens

smoothing : non

background correction: 1500cm-1

miniRaman spectrometer sensitivity from laser at 660nm (determined as SNR of polystyrene spectrum)
SNR should be in the range 100:1 to 150:1 from 660nm laser (spectral range 2750-4500cm-1)

laser wavelength: 660nm

laser power: 32mW

integration time: 0.5s

number of repetitions: 1

CMOS gain 25

CMOS binning: 8 pixels

objective: dry microlens

smoothing : non

background correction: 1500cm-1

miniRaman MRs accessories:

long working distance probe, f=30mm (NA=0.05, laser spot size 50um)

middle working distance probe, f=15mm (NA=0.1, laser spot size 15um)

short working distance probe, f=6.25mm (NA=0.34, laser spot size 3um)

immersion probe; ideal for in-vivo skin measurements, direct contact measurements of powders and liquids (f=6.21mm, NA=0.38, spot size 2.5um)

sample holders

axial focusing accessories

light protection sample cover

objective covers

adapters for standard microscopy objectives (RMS, M25/0.75, M27/1)

If necessary, miniRaman MRs can be attached to the vertical positioning system for precise focusing on the sample surface and long term measurements