SmartEngine Selection Guide

OtO Photonics' SmartEngine (SE) Series of compact Czerny-Turner spectrometers can be specified with a huge range of configurations based on a choice of:-

 

• 8 standard sensors
• 6 standard slit sizes
• 39 gratings (and increasing)

 

When specifying the correct SmartEngine for your application we suggest you start by defining the spectral range and resolution you require to determine if one of OtO's standard combinations of Grating and Factory Set Spectral Range meets your needs. You can also find the Resolution available for different Slit Widths in the table below:-

 

Name	Groove Density (g/mm)	Blaze Angle i.e. Optimum Efficiency Wavelength	Factory Set Spectral Range	Resolution (nm)
				10µm	25µm	50µm	100µm	200µm	300µm
DUVN	500	330nm	200-1025nm	1.1	1.4	2.4	3.5	7.5	12
FUV	600	300nm	180-850nm	1.0	1.2	1.9	3.3	6.7	10
FUVN	300	300nm	180-1100nm	1.7	2.3	3.2	5.6	12.8	20
VNIR	600	500nm	350-1020nm	1.0	1.2	1.9	3.3	6.7	10
NIR1	1200	850nm	790-1010nm	0.5	0.7	0.9	1.7	3.4	4.5

 

If the standard configurations do not match your requirement the full list of options is given below - or simply provide APT with the wavelength range you require and we can recommend a solution.

 

Each grating has a "Factory Selectable Band" within which OtO can configure the "Spectral Width" when setting up the spectrometer's cavity during manufacture. For example the 830 grooves/mm grating blazed at 800nm can be set up to cover a 410nm spectral width within the 180-1100nm band.

 

 

Groove Density (g/mm)	Optimum Efficiency Wavelength	Spectral Width	Factory Selectable Band (nm)	Simulated Resolution (nm) Guidance only
				10µm	25µm	50µm	100µm	200µm	300µm
2400	240nm 400nm	UV 150nm V-NIR 100nm	180-520	0.2	0.3	0.4	0.7	1.2	1.8
1800	180nm 250nm 500nm	UV 210nm V-NIR 150nm	180-700	0.3	0.4	0.6	1.0	1.8	2.6
1600	200nm	UV 240nm V-NIR 160nm	180-780	0.3	0.4	0.7	1.2	2.0	2.9
1500	600nm	UV 260nm V-NIR 170nm	180-820	0.3	~	~	~	~	~
1400	230nm	UV 260nm V-NIR 180nm	180-900	0.4	0.5	0.8	1.6	3.0	~
1200	200nm 300nm 500nm 600nm 750nm 850nm	UV 320nm V-NIR 220nm	180-1010	0.4	0.6	0.9	1.7	3.4	4.5
1000	250nm 900nm	UV 400nm V-NIR 300nm	180-1100	0.6	0.7	1.1	1.9	3.0	6.5
950	1000nm	UV 420nm V-NIR 330nm	180-1100	0.7	0.9	1.4	2.4	3.5	~
900	500nm	UV 450nm V-NIR 360nm	180-1100	0.6	0.8	1.3	2.3	4.6	7.1
830	800nm	UV 490nm V-NIR 410nm	180-1100	0.9	1.0	1.5	2.5	4.5	8.3
600	250nm 300nm 400nm 500nm 800nm 1000nm	UV 680nm V-NIR 660nm	180-1100	1.0	1.2	1.9	3.3	6.7	10.0
500	300nm 330nm 560nm 770nm	UV 830nm V-NIR 820nm	180-1100	1.1	1.4	2.4	3.5	7.5	11.5
400	250nm 550nm	920nm	180-1100	~	2.3	3.2	6.0	12.8	~
300	200nm 230nm 230nm 280nm 300nm 422nm 500nm 580nm	920nm	180-1100	1.7	2.3	3.2	6.0	12.8	20.0

 

Having established the combination of grating and slit it is then necessary to choose the optimum sensor for your application. OtO offer SmartEngine with 8 standard sensors - each providing a combination of characteristics. SmartEngine's standard model numbers and associated sensors are shown below along with the suggested standard gratings:-

 

Model	Sensor	Characteristic	Dynamic Range	SNR	Spectral Response Range (nm)
					DUVN	FUV	FUVN	VNIR	NIR1
					200 - 1025	180 - 850	180 - 1100	350 - 1020	790 - 1010
SE2020	Sony ILX511B UV front illuminated CCD	180-1100nm	≥1630	250	*	*	*	*	*
SE2030	Hamamatsu S11639 CMOS Fast exposure 2048-pixel	180-1100nm Short exposure High DR/SNR	≥2300	350	*	*	*	*	*
SE2040	Sony ILX554B Front illuminated CCD	200-1025nm Lowest cost	≥1820	200	≥275nm			*
SE2050 SE2052	Hamamatsu S11510 NIR back-thinned CCD	790-1010nm High SNR @ NIR	≥3200	500					*
SE2070	Toshiba 1304 High pixel-resolution CCD	200-1025nm High resolution	≥1600	400	*			*	*
SE2080	Hamamatsu S13496 CMOS, fast exposure	200-1025nm 0.4ms exposure High resolution	≥2000	350	*			*	*
SE2090	Hamamatsu S11071 Back-thinned CCD Fast exposure	180-1100nm 2ms exposure	≥4600	500		*		*
SE2120	Hamamatsu X1-CMOS Fast exposure 1024-pixel	180-1100nm High sensitivity High DR High SNR	4500   >3500 @ 2.5MHz	430	*	*	*	*	*

 

The part number of the final SmartEngine is derived from the choice of Sensor, Slit Width and Grating/Spectral Range, i.e. SE2030-100-DUVN. If a non-standard combination of grating/spectral range is selected a custom designation will be issued

 

For volume opportunities with OEM customers OtO also develop bespoke configurations with custom gratings and slits along with non-standard sensors, optics and interface connections.

 

SmartEngine product brief

SmartEngine data sheet

 

For further information and to discuss your requirement please contact APT.