Transmission Diffraction Grating Optical Round Gratings

• After-sales Service: Transmission Gratings
• Application: Laboratory Apparatus
• Warranty: 1 Year
• Detection Method: Spectrophotometer
• Advantage: Transmission Gratings
• Principle: New Spectrometer
• Model NO.: OG
• Wavelengths: Infrared Spectrometer
• Dispersive Element: Interferometer Spectrometer
• Light Number: Monochromator
• Certification: RoHS, ISO9001, CE
• Customized: Customized
• Transport Package: Foam Carton Inner, Then Cartons to Pack Them
• Specification: customized
• Trademark: YBT
• Origin: Shen Yang
• Production Capacity: 2000

Product Description

Product Details

Transmission gratings

Transmission Gratings

A transmission grating offers a basic simplicity for optical designs that can be beneficial in fixed grating applications such as spectrographs. The incident light is dispersed on the opposite side of the grating at a fixed angle. Transmission gratings are very forgiving for some types of grating alignment errors.

By necessity, a transmission grating requires relatively coarse groove spacings to maintain high efficiency. As the diffraction angles increase with the finer spacings, the refractive properties of the materials used limit the transmission at the higher wavelengths and performance drops off. The grating dispersion characteristics, however, lend themselves to compact systems utilizing small detector arrays. The gratings are also relatively polarization insensitive.

 

Transmission Gratings: Visible & NIR

This line of blazed transmission gratings was designed for optimum performance in the visible and NIR spectrum, offering different levels of dispersion. In most cases, the efficiency is comparable to that of reflection gratings typically used in the same region of the spectrum.  Zero order data is included in all performance curves for those interested in beam splitting applications.

 

Transmission Gratings: UV

UV Transmission Gratings are produced on fused silica substrates providing superior diffraction efficiencies as low as 235 nm. Zero order data is included in all performance curves for those interested in beam splitting applications.

 

Anti-reflective Coatings

Anti-reflective coatings can be applied to the non diffracting surface of our visible Transmission gratings which increase diffraction efficiencies by reducing first surface reflection losses. Our standard AR coatings are designed to increase efficiency of the grating in the 400-800nm range. Other anti-reflection coating spectral ranges are available, contact Optometrics to discuss your specific needs.
 

General Specifications

Grooves	100-2400Lines/mm
Dimensional Tolerance	±0.5mm
Thickness Tolerance	±0.5mm
Blaze Angle	Custom made
Type	Transmission diffraction gratings
Material	BK7/ Fused silica

Catalogue for transmission gratings

 

Item	Groove(l/mm)	Blaze WaveLeng(nm)	Blaze Angle	Dimensions(mm)
GT101	20	10000	5.7°	70*90
GT102	20	10000	5.7°	63*105
GT103	50	12800	18.7°	40*40
GT104	50	18000	26.7°	60*63
GT105	50	10600	15.4°	65*100
GT106	75	2000	4.3°	48*48
GT107	100	2500	7.2°	60*60
GT108	100	2750	7.9°	64*64
GT109	100	7000	20.5°	63*63
GT110	100	9000	26.7°	20*20
GT111	100	9800	29.3°	20*20
GT112	100	10600	32°	100*100
GT113	100	16000	53.1°	70*130
GT114	150	2000	8.6°	55*60
GT115	150	4000	17.5°	64*64
GT116	150	5300	23.4°	25*25
GT117	150	6000	26.7°	64*64
GT118	150	10000	48.6°	70*130
GT119	150	10600	52.7°	50*50
GT120	200	1550	8.9°	38*41
GT121	200	1800	10.4°	63*100
GT122	200	5000	30°	55*55
GT123	250	800	5.7°	64*64
GT124	300	500	4.3°	64*64
GT125	300	600	5.2°	100*100
GT126	300	640	5.5°	64*64
GT127	300	1000	8.6°	64*64
GT128	300	1500	13°	64*64
GT129	300	1900	16.6°	64*64
GT130	300	2000	17.5°	64*64
GT131	300	2400	21.1°	60*60
GT132	300	2500	22°	64*64
GT133	300	2750	24.4°	64*64
GT134	300	2800	24.8°	50*50
GT135	300	3000	28.7°	50*50
GT136	300	3500	32.7°	50*50
GT137	300	3800	34.8°	50*50
GT138	300	4000	35.9°	50*50
GT139	300	5000	46.6°	55*55
GT140	400	430	4.9°	35*50
GT141	400	500	5.7°	50*50
GT142	400	540	6.2°	48*50
GT143	400	1500	17.5°	64*64
GT144	400	2000	23.6°	64*64
GT145	450	430	5.6°	40*48
GT146	600	250	4.3°	64*64
GT147	600	360	6.2°	50*50
GT148	600	430	7.4°	40*40
GT149	600	500	8.6°	55*64
GT150	600	540	9.3°	85*85
GT151	600	600	10.4°	64*64
GT152	600	630	10.9°	17*44
GT153	600	640	11.1°	70*70
GT154	600	700	12.1°	64*64
GT155	600	720	12.5°	25*25
GT156	600	800	13.9°	20*45
GT157	600	1000	17.5°	40*65
GT158	600	1060	18.5°	40*65
GT159	600	1250	22°	64*64
GT160	600	1500	26.7°	64*64
GT161	600	1600	28.7°	64*64
GT162	600	2700	54.1°	20*90
GT163	1200	210	7.2°	64*64
GT164	1200	250	8.6°	64*64
GT165	1200	310	10.7°	64*64
GT166	1200	360	12.5°	55*55
GT167	1200	430	15°	53*62
GT168	1200	500	17.5°	102*102
GT169	1200	540	18.9°	70*70
GT170	1200	640	22.6°	100*102
GT171	1200	720	25.6°	50*60
GT172	1200	800	28.7°	50*100
GT173	1200	1000	36.9°	50*60
GT174	1200	1060	39.5°	100*105
GT175	1800	210	10.9°	64*64
GT176	1800	500	26.7°	50*50
GT177	1800	500	26.7°	30*70
GT178	1800	540	29.1°	30*70
GT179	1800	720	40.4°	30*70