A review of the precision glass molding of Chalcogenide glass (ChG) for infrared optics

Tianfeng Zhou; Zhanchen Zhu; Xiaohua Liu; Zhiqiang Liang; Xibin Wang

doi:10.3390/mi9070337

A review of the precision glass molding of Chalcogenide glass (ChG) for infrared optics

Tianfeng Zhou^*, Zhanchen Zhu, Xiaohua Liu, Zhiqiang Liang, Xibin Wang

^*Corresponding author for this work

School of Mechanical Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Review article › peer-review

60 Citations (Scopus)

Abstract

Chalcogenide glass (ChG) is increasingly demanded in infrared optical systems owing to its excellent infrared optical properties. ChG infrared optics including ChG aspherical and freeform optics are mainly fabricated using the single point diamond turning (SPDT) technique, which is characterized by high cost and low efficiency. This paper presents an overview of the ChG infrared optics fabrication technique through precision glass molding (PGM). It introduces the thermo-mechanical properties of ChG and models the elastic-viscoplasticity constitutive of ChG. The forming accuracy and surface defects of the formed ChG are discussed, and the countermeasures to improve the optics quality are also reviewed. Moreover, the latest advancements in ChG precision molding are detailed, including the aspherical lens molding process, the ChG freeform optics molding process, and some new improvements in PGM.

Original language	English
Article number	337
Journal	Micromachines
Volume	9
Issue number	7
DOIs	https://doi.org/10.3390/mi9070337
Publication status	Published - 2 Jul 2018

Keywords

Aspherical lens
Chalcogenide glass
Freeform optics
Infrared optics
Precision glass molding

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10.3390/mi9070337

Cite this

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title = "A review of the precision glass molding of Chalcogenide glass (ChG) for infrared optics",

abstract = "Chalcogenide glass (ChG) is increasingly demanded in infrared optical systems owing to its excellent infrared optical properties. ChG infrared optics including ChG aspherical and freeform optics are mainly fabricated using the single point diamond turning (SPDT) technique, which is characterized by high cost and low efficiency. This paper presents an overview of the ChG infrared optics fabrication technique through precision glass molding (PGM). It introduces the thermo-mechanical properties of ChG and models the elastic-viscoplasticity constitutive of ChG. The forming accuracy and surface defects of the formed ChG are discussed, and the countermeasures to improve the optics quality are also reviewed. Moreover, the latest advancements in ChG precision molding are detailed, including the aspherical lens molding process, the ChG freeform optics molding process, and some new improvements in PGM.",

keywords = "Aspherical lens, Chalcogenide glass, Freeform optics, Infrared optics, Precision glass molding",

author = "Tianfeng Zhou and Zhanchen Zhu and Xiaohua Liu and Zhiqiang Liang and Xibin Wang",

note = "Publisher Copyright: {\textcopyright} 2018 by the authors.",

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doi = "10.3390/mi9070337",

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AU - Zhou, Tianfeng

AU - Zhu, Zhanchen

AU - Liu, Xiaohua

AU - Liang, Zhiqiang

AU - Wang, Xibin

PY - 2018/7/2

Y1 - 2018/7/2

N2 - Chalcogenide glass (ChG) is increasingly demanded in infrared optical systems owing to its excellent infrared optical properties. ChG infrared optics including ChG aspherical and freeform optics are mainly fabricated using the single point diamond turning (SPDT) technique, which is characterized by high cost and low efficiency. This paper presents an overview of the ChG infrared optics fabrication technique through precision glass molding (PGM). It introduces the thermo-mechanical properties of ChG and models the elastic-viscoplasticity constitutive of ChG. The forming accuracy and surface defects of the formed ChG are discussed, and the countermeasures to improve the optics quality are also reviewed. Moreover, the latest advancements in ChG precision molding are detailed, including the aspherical lens molding process, the ChG freeform optics molding process, and some new improvements in PGM.

AB - Chalcogenide glass (ChG) is increasingly demanded in infrared optical systems owing to its excellent infrared optical properties. ChG infrared optics including ChG aspherical and freeform optics are mainly fabricated using the single point diamond turning (SPDT) technique, which is characterized by high cost and low efficiency. This paper presents an overview of the ChG infrared optics fabrication technique through precision glass molding (PGM). It introduces the thermo-mechanical properties of ChG and models the elastic-viscoplasticity constitutive of ChG. The forming accuracy and surface defects of the formed ChG are discussed, and the countermeasures to improve the optics quality are also reviewed. Moreover, the latest advancements in ChG precision molding are detailed, including the aspherical lens molding process, the ChG freeform optics molding process, and some new improvements in PGM.

KW - Aspherical lens

KW - Chalcogenide glass

KW - Freeform optics

KW - Infrared optics

KW - Precision glass molding

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U2 - 10.3390/mi9070337

DO - 10.3390/mi9070337

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JO - Micromachines

JF - Micromachines

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A review of the precision glass molding of Chalcogenide glass (ChG) for infrared optics

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Keywords

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