CPC G02F 1/353 (2013.01) [G02F 1/3501 (2013.01); G02F 1/365 (2013.01); G02F 1/3503 (2021.01); G02F 1/3528 (2021.01)] | 20 Claims |
1. An optical component configured to function as an optical frequency converter in a broadband radiation source device, the optical component comprising:
a gas cell; and
a hollow-core photonic crystal fiber at least partially enclosed within the gas cell,
wherein the gas cell comprises a plurality of sub-cells, the plurality of sub-cells comprising:
two end sub-cells enclosing respective ends of the hollow-core photonic crystal fiber; and
a central sub-cell between the two end sub-cells.
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