Plane wave transmitted wavefront simulation and measurement of filter with multi-spectrum

Table 1. Visible spectrum experiments data
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Table 1. Visible spectrum experiments data
Glass base Thickness/mm Refractive index Coating characteristics Average value of refractive index of coating Quantity
Fused silica 5 1.457 046 632.8 nm pass 1.825 443 4

Table 2. Surface sag and transmitted wavefront of the filter before and after coating in visible spectrum(RMS@λ=632.8 nm)

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Table 2. Surface sag and transmitted wavefront of the filter before and after coating in visible spectrum(RMS@λ=632.8 nm)

Before coating			After coating
Surface sag front	Surface sag back	Transmitted wavefront	Surface sag front	Surface sag back	Transmitted wavefront simulated	Transmitted wavefront measured

0.086	0.051	0.012	0.607	0.621	0.026	0.028

0.030	0.035	0.010	0.290	0.298	0.017	0.015

0.041	0.082	0.014	2.447	2.419	0.043	0.040

0.055	0.084	0.019	0.076	0.072	0.022	0.018

Table 3. Infrared spectrum experiments data
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Table 3. Infrared spectrum experiments data
Glass base Thickness/mm Refractive index Coating characteristics Average value of refractive index of coating Quantity
Germanium 3 4.045 1 3.39 μm pass 3.351 286 2

Table 4. Surface sag and transmitted wavefront of the filter before and after coating in infrared spectrum(RMS@λ=3.39 μm)

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Table 4. Surface sag and transmitted wavefront of the filter before and after coating in infrared spectrum(RMS@λ=3.39 μm)

Before coating			After coating
Surface sag front	Surface sag back	Surface sag front	Surface sag back	Surface sag front	Surface sag back	Surface sag front

0.033	0.015	0.008	0.656	0.656	0.012	0.011

0.021	0.011	0.011	0.021	0.016	0.013	0.011

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Jianxiang Du, Xiaoying Zong, Shikui Luo, Chao Gao. Plane wave transmitted wavefront simulation and measurement of filter with multi-spectrum[J]. Infrared and Laser Engineering, 2021, 50(9): 20200528

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Paper Information

Category: Photoelectric measurement

Received: Nov. 28, 2020

Accepted: --

Published Online: Oct. 28, 2021

The Author Email:

DOI:10.3788/IRLA20200528

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Visible spectrum experiments data

Table 1. Visible spectrum experiments data

Table 2. Surface sag and transmitted wavefront of the filter before and after coating in visible spectrum(RMS@λ=632.8 nm)

Table 2. Surface sag and transmitted wavefront of the filter before and after coating in visible spectrum(RMS@λ=632.8 nm)

Table 3. Infrared spectrum experiments data

Table 3. Infrared spectrum experiments data

Table 4. Surface sag and transmitted wavefront of the filter before and after coating in infrared spectrum(RMS@λ=3.39 μm)

Table 4. Surface sag and transmitted wavefront of the filter before and after coating in infrared spectrum(RMS@λ=3.39 μm)