Temperature stability analysis of high absorptivity coating and stray light suppression performance in the space optical system

Yaoke Xue; Hu Wang; Zhanpeng Ma; Xinguo Wei

doi:10.1364/AO.591810

Temperature stability analysis of high absorptivity coating and stray light suppression performance in the space optical system

Yaoke Xue
, Hu Wang
, Zhanpeng Ma
, Xinguo Wei^*

^*Corresponding author for this work

School of Instrumentation and Optoelectronic Engineering

Beihang University
CAS - Xi'an Institute of Optics and Precision Mechanics
Xi’an Space Sensor Optical Technology Engineering Research Center
University of Chinese Academy of Sciences

Research output: Contribution to journal › Article › peer-review

Abstract

To ensure the stability of high absorptivity coating from −40^◦C to +75^◦C and reliable operation of space optical systems throughout the entire on-orbit lifetime, this paper investigates the variations in appearance, surface scattering of the coating, and influence on the point source transmittance (PST) of the baffle after the thermal cycling test. Results show minor variations in performance. The root mean square (RMS) roughness changes from 11.250 to 11.791 µm, the relative bidirectional reflectance distribution function (BRDF) variation is ≤18%, and the absorptivity slightly rises from 98.15% to 98.21%. The baffle PST remains stable, with a pre-to-post ratio of 1–1.1 for simulations and 0.8–1.4 for measurements. The coating exhibits excellent thermal stability within the target range and meets the preliminary requirements for space applications.

Original language	English
Pages (from-to)	4411-4419
Number of pages	9
Journal	Applied Optics
Volume	65
Issue number	13
DOIs	https://doi.org/10.1364/AO.591810
State	Published - 1 May 2026

Access to Document

10.1364/AO.591810

Cite this

@article{d7176a289c0a41f89cba4ee1c5c0c60a,

title = "Temperature stability analysis of high absorptivity coating and stray light suppression performance in the space optical system",

abstract = "To ensure the stability of high absorptivity coating from −40◦C to +75◦C and reliable operation of space optical systems throughout the entire on-orbit lifetime, this paper investigates the variations in appearance, surface scattering of the coating, and influence on the point source transmittance (PST) of the baffle after the thermal cycling test. Results show minor variations in performance. The root mean square (RMS) roughness changes from 11.250 to 11.791 µm, the relative bidirectional reflectance distribution function (BRDF) variation is ≤18\%, and the absorptivity slightly rises from 98.15\% to 98.21\%. The baffle PST remains stable, with a pre-to-post ratio of 1{\textendash}1.1 for simulations and 0.8{\textendash}1.4 for measurements. The coating exhibits excellent thermal stability within the target range and meets the preliminary requirements for space applications.",

author = "Yaoke Xue and Hu Wang and Zhanpeng Ma and Xinguo Wei",

note = "Publisher Copyright: {\textcopyright} 2026 Optica Publishing Group. All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.",

year = "2026",

month = may,

day = "1",

doi = "10.1364/AO.591810",

language = "英语",

volume = "65",

pages = "4411--4419",

journal = "Applied Optics",

issn = "1559-128X",

publisher = "Optica Publishing Group (formerly OSA)",

number = "13",

}

TY - JOUR

T1 - Temperature stability analysis of high absorptivity coating and stray light suppression performance in the space optical system

AU - Xue, Yaoke

AU - Wang, Hu

AU - Ma, Zhanpeng

AU - Wei, Xinguo

PY - 2026/5/1

Y1 - 2026/5/1

N2 - To ensure the stability of high absorptivity coating from −40◦C to +75◦C and reliable operation of space optical systems throughout the entire on-orbit lifetime, this paper investigates the variations in appearance, surface scattering of the coating, and influence on the point source transmittance (PST) of the baffle after the thermal cycling test. Results show minor variations in performance. The root mean square (RMS) roughness changes from 11.250 to 11.791 µm, the relative bidirectional reflectance distribution function (BRDF) variation is ≤18%, and the absorptivity slightly rises from 98.15% to 98.21%. The baffle PST remains stable, with a pre-to-post ratio of 1–1.1 for simulations and 0.8–1.4 for measurements. The coating exhibits excellent thermal stability within the target range and meets the preliminary requirements for space applications.

AB - To ensure the stability of high absorptivity coating from −40◦C to +75◦C and reliable operation of space optical systems throughout the entire on-orbit lifetime, this paper investigates the variations in appearance, surface scattering of the coating, and influence on the point source transmittance (PST) of the baffle after the thermal cycling test. Results show minor variations in performance. The root mean square (RMS) roughness changes from 11.250 to 11.791 µm, the relative bidirectional reflectance distribution function (BRDF) variation is ≤18%, and the absorptivity slightly rises from 98.15% to 98.21%. The baffle PST remains stable, with a pre-to-post ratio of 1–1.1 for simulations and 0.8–1.4 for measurements. The coating exhibits excellent thermal stability within the target range and meets the preliminary requirements for space applications.

UR - https://www.scopus.com/pages/publications/105037733713

U2 - 10.1364/AO.591810

DO - 10.1364/AO.591810

M3 - 文章

AN - SCOPUS:105037733713

SN - 1559-128X

VL - 65

SP - 4411

EP - 4419

JO - Applied Optics

JF - Applied Optics

IS - 13

ER -

Temperature stability analysis of high absorptivity coating and stray light suppression performance in the space optical system

Abstract

Access to Document

Other files and links

Fingerprint

Cite this