光栅- 金光栅,极紫外光栅, 衍射光栅,透射光栅-北京汇德信科技有限公司

金光栅

金点阵和光栅结构，适用于表面等离子体领域的研究

Part No	Product	Period	Pillar /line	Depth	Area	Image
1	P600h_p_Au_15w15 Au pillar on Hexagonal Lattices	600nm	230nm	100nm	15 X 15 mm² (Quartz substrate)
2	P1000h_p_Au_15w15 Au pillar on Hexagonal Lattices	1000nm	360nm	50nm	15 X 15 mm² (Quartz substrate)
3	P500L_p_Au_15w15 Au lines on Hexagonal Lattices	500nm	220nm	120nm	15 X 15 mm² (Quartz substrate)

Eulitha公司新推出极紫外光栅系列产品。采用高分辨电子束曝光工艺可制作最小周期达80nm的各种光栅结构，产品的独特设计可有效提高衍射效率及传输效率。Eulitha可根据用户的需求提供产品定制服务。具体产品信息如下：

极紫外光栅结构定制

脉冲压缩透射光栅的优势在于衍射效率高和波前变形低，面向光栅的多种使用要求。优化的线性P-偏振衍射效率在95％以上，它可以将光学系统损耗最小化，特别是应用于高能激光器的光学系统。

光栅可在较大的光谱范围和角度范围内高效率地工作。操作波长超过25毫米的情况下，波前误差＜0.2λ。

Item	Optimal Wavelength Range1 (nm)	Line Density (Lines/mm)	Angle of Incidence1(°)	Operational Polarization2	Diffraction Efficiency3(%)
1	800±20	1398.6	34.0±1	S and P	>94
2	800±20	1851.85	47.8±1	S	> 94
3	850±20	1208.46	30.7±1	S	> 94
4	875±20	1503.76	41.0±1	S and P	> 94
5	895±20	1702.13	49.5±1	S and P	> 92
6	915±10	1851.85	57.9±1	S	> 93
7	930±20	1500.38	44.2±1	S and P	> 94
8	970±10	1600	51.3±1	S	> 94
9	970±10	1851.85	63.9±1	S	> 93
10	1030±10	1600	55.5±1	S	> 94
11	1030±10	1702.13	61.2 ±1	S	> 93
12	1030±10	1739.13	63.6±1	S	> 90
13	1040±20	1000	31.3±1	S and P	> 94
14	1060+20	1600	58.0±1	S	> 94
Notes:	1. Gratings will be highly efficient over larger range of angles – please inquire. 2. P-polarization: incident electric field vector perpendicular to grating lines. S-polarization: incident electric field vector parallel to grating lines. 3. For gratings supporting both S and P polarizations, the diffraction efficiency is the average efficiencies of S and P polarization at any given wavelength

Description	Value
Substrate Width and Height Tolerance	standard tolerance ± 0.2 mm
Grating Area Clear Aperture (CA)	0.5 mm from substrate edge; exception: 125 mm for 130 mm wide gratings
Substrate Thickness	0.675 ±0.050 or 0.95 ±0.050 (up to 10 mm custom thickness available)
Surface Quality in CA	60/40 scratch/dig
Surface Quality outside of CA	no requirements
Material	Fused silica substrate, non-organic dielectrics. Contains no polymers.
Notes: Better tolerances and surface quality available for custom products

透射光栅将分散的多角度的入射光转变成光谱。

我们的透射光栅采用先进的设计和精密的光刻晶圆制造，具有优质的衍射效率，超低偏振损耗，提供低成本、高品质的光学性能，为您的光学系统提供强大的竞争优势。

以下规格标准光栅有现货。可以根据线密度、光谱波段、输入/输出光束的几何形状和衬底尺寸等提供定制服务。

Polarization-Independent Telecom Transmission Gratings

Item	Wavelength Range (nm)	Line Density (Lines/ mm)	Angle of Incidence1(°)	Diffraction Efficiency2(%)	Insertion Loss Ripple (dB)	Polarization- Dependent Loss2 (dB)	Wavefront Error (@1545 nm λ)	Substrate thickness (mm)
1	1525-1565	966.18	48.3+1	> 94	< 0.1	< 0.2	< 0.1	0.675+0.05
2	1525-1565	940.07	46.5+1	> 94	< 0.1	< 0.2	< 0.1	0.675+0.05
3	1570-1610	940.07	48.4+1	> 94	< 0.1	< 0.2	< 0.1	0.675+0.05
4	1526-1610	940.07	47.5+1	> 92	< 0.1	< 0.2	< 0.1	0.675+0.05

High Dispersion Single Polarization Telecom Transmission Gratings

Polarization Independent Datacom Transmission Gratings

Item	Wavelength Range (nm)	Line Density (Lines/ mm)	Angle of Incidence1(°)	Diffraction Efficiency2(%)	Polarization-Dependent Loss (dB)	Wavefront Error (@650 nm λ)
1	850-940	1702.13	49.5±1	≥ 90	< 0.3	< 0.25
2	1275-1345	1201.2	52.0±1	≥ 85	< 0.3	< 0.25
Notes:	1. Gratings will be highly efficient over larger range of angles – please inquire. 2. Determined from parabolic fit of efficiency as a function of wavelength for s- and p- polarization, worst case in the wavelength range.