# 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, Division: Materials

Extent: E+W+S+N.I.

6C002Optical sensor materials as follows:
a.. Elemental tellurium (Te) of purity levels of 99,9995 % or more;
b.. Single crystals (including epitaxial wafers) of any of the following:
1.. Cadmium zinc telluride (CdZnTe), with zinc content of less than 6 % by ‘mole fraction’;
2.. Cadmium telluride (CdTe) of any purity level; or
3.. Mercury cadmium telluride (HgCdTe) of any purity level.
Technical Note:
‘Mole fraction’ is defined as the ratio of moles of ZnTe to the sum of moles of CdTe and ZnTe present in the crystal.
6C004Optical materials as follows:
a.. Zinc selenide (ZnSe) and zinc sulphide (ZnS) "substrate blanks", produced by the chemical vapour deposition process and having any of the following:
1.. A volume greater than 100 cm3; or
2.. A diameter greater than 80 mm and a thickness of 20 mm or more;
b.. Electro-optic materials and non-linear optical materials, as follows:
1.. Potassium titanyl arsenate (KTA) (CAS 59400-80-5);
2.. Silver gallium selenide (AgGaSe2, also known as AGSE) (CAS 12002-67-4);
3.. Thallium arsenic selenide (Tl3AsSe3, also known as TAS) (CAS 16142-89-5);
4.. Zinc germanium phosphide (ZnGeP2, also known as ZGP, zinc germanium biphosphide or zinc germanium diphosphide); or
5.. Gallium selenide (GaSe) (CAS 12024-11-2);
c.. Non-linear optical materials, other than those specified in 6C004.b., having any of the following:
1.. Having all of the following:
a.. Dynamic (also known as non-stationary) third order non-linear susceptibility (χ(3), chi 3) of 10–6 m2/V2 or more; and
b.. Response time of less than 1 ms; or
2.. Second order non-linear susceptibility (χ(2), chi 2) of 3,3×10–11 m/V or more;
d.. "Substrate blanks" of silicon carbide or beryllium beryllium (Be/Be) deposited materials, exceeding 300 mm in diameter or major axis length;
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.. A hydroxyl ion (OH-) concentration of less than 5 ppm;
2.. Integrated metallic purity levels of less than 1 ppm; and
3.. High homogeneity (index of refraction variance) less than 5 × 10–6;
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.
6C005"Laser" materials as follows:
a.. Synthetic crystalline "laser" host material in unfinished form as follows:
1.. Titanium doped sapphire;
2.. Not used.
b.. Rare-earth-metal doped double-clad fibres having any of the following:
1.. Nominal "laser" wavelength of 975 nm to 1 150 nm and having all of the following:
a.. Average core diameter equal to or greater than 25 μm; and
b.. Core ‘Numerical Aperture’ (‘NA’) less than 0,065; or
Note:
6C005.b.1. does not control double-clad fibres having an inner glass cladding diameter exceeding 150 μm and not exceeding 300 μm.
2.. Nominal "laser" wavelength exceeding 1 530 nm and having all of the following:
a.. Average core diameter equal to or greater than 20 μm; and
b.. Core ‘Numerical Aperture’ (‘NA’) less than 0,1.
Technical Notes:
1.
For the purposes of 6C005.b., the core ‘Numerical Aperture’ (‘NA’) is measured at the emission wavelengths of the fibre.
2.
6C005.b. includes fibres assembled with end caps.

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Source: https://www.legislation.gov.uk/eur/2020/1749/annex/I/division/8/division/3 (the official version)
Page: https://openlegislation.uk/eu-regulation-2020-1749/annex-I/division-8/division-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.