Thorlabs索雷博 PFE20-G01 椭圆反射镜

PFE20-G01 - 椭圆反射镜，有保护层的铝膜，2英寸，450 nm - 20 µm

45°时为1/2英寸、1英寸或2英寸圆形孔径
金属膜或宽带介质膜
- 宽带介质膜：400 - 750 nm(-E02)或750 - 1100 nm(-E03)膜
- 金属膜：有保护层的铝膜、有保护层的银膜、超快增强型银膜或有保护层的金膜
平面反射镜，紫外熔融石英基底

Thorlabs的椭圆反射镜在椭圆紫外熔融石英基底或椭圆熔融石英基底上具有镀膜面。当反射镜绕椭圆短轴旋转45°时，所得的通光孔径为圆形，如图1.3所示。

安装选项
我们建议使用我们的45°固定式椭圆反射镜安装座或椭圆反射镜调整架以安装这些反射镜。我们的45°固定式安装座兼容1英寸或2英寸椭圆反射镜。它们可接杆安装，或固定在无螺纹的标准反射镜调整架内。图1.1所示的实例是椭圆反射镜安装在H45E2 45°椭圆光学元件安装座中。

我们的光学调整架兼容1/2英寸、1英寸或2英寸椭圆反射镜。这些调整架还兼容我们的笼式系统和SM系列透镜套筒，从而可以使用多种光机械结构标准。本页右上方的图为1英寸有保护层的金膜椭圆反射镜安装在KCB1E(/M)直角光学调整架中。

图2.1为椭圆反射镜的示意图。minor axis为椭圆短轴，major axis为椭圆长轴。当反射镜绕短轴旋转45°时，反射镜的通光孔径将为圆形，如图2.2所示：

Item # Prefix	BBE05^a	PFE05^b	BBE1^a	PFE10^b	UME1^c	BBE2^a	PFE20^b
Minor Axis	1/2" (12.7 mm)		1" (25.4 mm)			2" (50.8 mm)
Major Axis	0.71" (18.0 mm)		1.41" (35.9 mm)			2.83" (71.8 mm)
Diameter Tolerance	+0.0/-0.1 mm	±0.1 mm	+0.0/-0.1 mm	±0.1 mm	+0.0/-0.1 mm	+0.0/-0.1 mm	±0.1 mm
Thickness	6.0 mm (0.24")		6.0 mm (0.24")			12.0 mm (0.47")
Thickness Tolerance	±0.2 mm		±0.2 mm			±0.2 mm
Circular Clear Aperture	>Ø10.8 mm	>Ø11.4 mm	>Ø21.6 mm	>Ø22.9 mm		>Ø43.2 mm	>Ø45.7 mm
Parallelism	< 5 arcmin		< 3 arcmin	< 5 arcmin		< 5 arcmin
Substrate	UV Fused Silica^d				Fused Silica	UV Fused Silica^d
Back Surface	Fine Ground
Front Surface Flatness	λ/10 at 633 nm (Peak to Valley)
Surface Quality	40-20 Scratch-Dig

Coating Specifications
Item # Suffix	Coating Type	Reflectance (45° AOI)	Group Delay Dispersion	Damage Threshold
Item # Suffix	Coating Type	Reflectance (45° AOI)	Group Delay Dispersion	Pulsed	CW^a,b
-E02	Broadband Dielectric	R_avg > 99% from 400 nm to 750 nm	-	0.25 J/cm² (532 nm, 10 ns, 10 Hz, Ø0.803 mm)	550 W/cm (532 nm, Ø1.000 mm)
-E03	Broadband Dielectric	R_avg > 99% from 750 nm to 1100 nm	-	0.205 J/cm² (800 nm, 99 fs, 1 kHz, Ø0.166 mm) 1 J/cm² (810 nm, 10 ns, 10 Hz, Ø0.133 mm) 0.5 J/cm² (1064 nm, 10 ns, 10 Hz, Ø0.433 mm)	10 kW/cm (1070 nm, Ø0.971 mm)
-G01	Protected Aluminum	R_avg > 90% from 450 nm to 2 µm, R_avg > 95% from 2 µm to 20 µm	-	0.3 J/cm² (1064 nm, 10 ns, 10 Hz, Ø1.000 mm)	100 W/cm (1.070 µm, Ø0.098 mm) 350 W/cm (10.6 µm, Ø0.339 mm)
-P01	Protected Silver	R_avg > 97% from 450 nm to 2 µm, R_avg > 95% from 2 µm to 20 µm	-	0.225 J/cm² (800 nm, 99 fs, 1 kHz, Ø0.167 mm) 1 J/cm² (1064 nm, 10 ns, 10 Hz, Ø1.010 mm)	500 W/cm (1.07 µm, Ø0.974 mm) 1500 W/cm (10.6 µm, Ø0.339 mm)
-AG^c	Ultra-Fast Enhanced Silver	R_s > 99.0% and R_p > 98.5% from 750 nm to 1 µm	\|GDD_s\| < 20 fs² \|GDD_p\| < 30 fs²	0.39 J/cm² (800 nm, 52 fs FWHM, S-Pol, 1 Pulse) 0.18 J/cm² (800 nm, 52 fs FWHM, S-Pol, 1000 Pulses)	-
-M01	Protected Gold	R_avg > 96% from 800 nm to 20 µm	-	2 J/cm² (1064 nm, 10 ns, 10 Hz, Ø1.000 mm)	500 W/cm (1.070 µm, Ø0.089 mm) 750 W/cm (10.6 µm, Ø0.339 mm)