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Division [6C004] Optical materials as follows:F1

Changes not yet applied. Later legislation changes this provision in ways not yet written into the text below:

  1. a..

    Zinc selenide (ZnSe) and zinc sulphide (ZnS) "substrate blanks", produced by the chemical vapour deposition process and having any of the following:

    1. 1..

      A volume greater than 100 cm3; or

    2. 2..

      A diameter greater than 80 mm and a thickness of 20 mm or more;

  2. b..

    Electro-optic materials and non-linear optical materials, as follows:

    1. 1..

      Potassium titanyl arsenate (KTA) (CAS 59400-80-5);

    2. 2..

      Silver gallium selenide (AgGaSe2, also known as AGSE) (CAS 12002-67-4);

    3. 3..

      Thallium arsenic selenide (Tl3AsSe3, also known as TAS) (CAS 16142-89-5);

    4. 4..

      Zinc germanium phosphide (ZnGeP2, also known as ZGP, zinc germanium biphosphide or zinc germanium diphosphide); F2...

    5. 5..

      Gallium selenide (GaSe) (CAS 12024-11-2);

  3. c..

    Non-linear optical materials, other than those specified in 6C004.b., having any of the following:

    1. 1..

      Having all of the following:

      1. a..

        Dynamic (also known as non-stationary) third order non-linear susceptibility (χ(3), chi 3) of 10–6 m2/V2 or more; and

      2. b..

        Response time of less than 1 ms; or

    2. 2..

      Second order non-linear susceptibility (χ(2), chi 2) of 3,3×10–11 m/V or more;

  4. d..

    "Substrate blanks" of silicon carbide or beryllium beryllium (Be/Be) deposited materials, exceeding 300 mm in diameter or major axis length;

  5. e..

    Glass, including fused silica, phosphate glass, fluorophosphate glass, zirconium fluoride (ZrF4) (CAS 7783-64-4) and hafnium fluoride (HfF4) (CAS 13709-52-9) and having all of the following:

    1. 1..

      A hydroxyl ion (OH-) concentration of less than 5 ppm;

    2. 2..

      Integrated metallic purity levels of less than 1 ppm; and

    3. 3..

      High homogeneity (index of refraction variance) less than 5 × 10–6;

  6. f..

    Synthetically produced diamond material with an absorption of less than 10–5 cm–1 for wavelengths exceeding 200 nm but not exceeding 14 000 nm.

Annotations

Textual amendments

F1

Substituted by Commission Delegated Regulation (EU) 2020/1749 of 7 October 2020 amending Council Regulation (EC) No 428/2009 setting up a Community regime for the control of exports, transfer, brokering and transit of dual-use items.

F2

Word in Annex 1 Entry 6C004.b.4. omitted (20.5.2025) by virtue of The Export Control (Amendment) Regulations 2025 (S.I. 2025/532), regs. 1(2), 14(3)(a)