The Maya 2000 Family of Miniature Back-Thinned Spectrometers

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The Ocean Optics line of high-sensitivity back-thinned 2D FFT-CCD spectrometers for low light-level, UV-sensitive and other scientific applications now includes the uncooled Maya 2000 and Maya 2000-Pro, which offer greater than 90% quantum efficiency, high dynamic range and excellent deep-UV response (<190 nm).

Advantages of Back-thinned FFT-CCD Detectors
Back-Thinned CCD area image sensors have high UV response, great signal-to-noise characteristics and wide dynamic range, making them especially suited for low light level applications. Because of their great native UV response, FFT-CCD detectors do not require the application of UV-sensitive coatings, which is common with standard CCD-array detectors. That’s important because batch-to-batch variation can be problematic with some UV coatings.

Introducing Maya 2000-series Spectrometers

If $10,000 is a little bit out of your budget range, and if long integration times aren’t part of your application, the Maya 2000 and Maya 2000-Pro may fill the bill. Indeed, at introductory prices of just $4800 and $5800, respectively, Maya 2000 and Maya 2000-Pro offer great value and performance for most any application requiring high sensitivity, good UV response and great dynamic range.

While Maya 2000 and Maya 2000-Pro have similar performance for most parameters, the Maya 2000 has slightly faster readout time and the Pro offers better dynamic range and signal-to-noise (see comparison tables for a specification-by-specification analysis). Also, please note that limited detector availability may make lead times longer for the Maya 2000. Maya 2000: $4800 Maya 2000-Pro: $5800.

Under the Hood

Maya2000Pro has >90% quantum efficiency; Maya2000 has 75% QE
USB 2.0 interface
Low-noise electronics
Optical resolution to ~0.035 nm (FWHM); resolution depends on groove density of grating and size of entrance aperture (slit)
14 grating options, including the HC-1 composite grating for coverage from 175-1100 nm (additional charge)
Slits available in widths of 5 µm, 10 µm, 25 µm, 50 µm, 100 µm and 200 µm
Optional propriety order-sorting filters to eliminate second- and third-order effects
Detector collection lens option for enhanced signal collection
Fully programmable strobe signals (single or continuous)
10 onboard digital user-programmable GPIOs

Uses SpectraSuite Spectrometer Operating Software (runs in Windows, Mac or Linux).

Maya 2000-Pro Sample Spectrum

Detector Specifications
	Maya 2000
Detector:	Hamamatsu S9840
Architecture:	Back-thinned, 2D
Thermoelectric cooling:	No
# of Pixels:	All: 2080 x 20
# of Pixels:	Active: 2048 x 14
Pixel size:	14 um square
Detector active area (mm):	28.672 horizontal x 0.196 vertical
Well depth:	130Ke-
Peak QE	>90%
QE @ 250 nm	55%
Spectrometer Specifications
	Maya 2000
Integration time:	18 ms
A/D converter:	16 bit, 500 kHz
Dynamic range (typical):	5000:1
Signal-to-noise ratio:	350:1
Non-linearity (uncorrected):	~4.0%
Linearity (corrected):	<1.0%
Column sensitivity:	~0.45 Counts/e-

Detector Specifications
	Maya 2000-Pro
Detector:	Hamamatsu S10420
Architecture:	Back-thinned, 2D
Thermoelectric cooling:	No
# of Pixels:	All: 2068 x 70
# of Pixels:	Active: 2048 x 64
Pixel size:	14 um square
Detector active area (mm):	28.672 horizontal x 0.896 vertical
Well depth:	200Ke-
Peak QE	75%
QE @ 250 nm	65%
Spectrometer Specifications
	Maya 2000-Pro
Integration time:	18 ms
A/D converter:	16 bit, 150 kHz
Dynamic range (typical):	~12000:1
Signal-to-noise ratio:	450:1
Non-linearity (uncorrected):	~10%
Linearity (corrected):	<1.0%
Column sensitivity:	~0.32 Counts/e-

Contact an Ocean Optics Applications Scientist