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    • Received: Dec. 18, 2020

    Accepted: Jan. 27, 2021

    Posted: Mar. 10, 2021

    Published Online: Mar. 16, 2021

    The Author Email: Christian R. Petersen (chru@fotonik.dtu.dk)

    DOI: 10.3788/COL202119.030603

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    Christian R. Petersen, Mikkel B. Lotz, Christos Markos, Getinet Woyessa, David Furniss, Angela B. Seddon, Rafael J. Taboryski, O. Bang. Thermo-mechanical dynamics of nanoimprinting anti-reflective structures onto small-core mid-IR chalcogenide fibers [Invited][J]. Chinese Optics Letters, 2021, 19(3): 030603

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Chinese Optics Letters, Vol. 19, Issue 3, 030603 (2021)

Thermo-mechanical dynamics of nanoimprinting anti-reflective structures onto small-core mid-IR chalcogenide fibers [Invited] 

Christian R. Petersen1,3,*, Mikkel B. Lotz2, Christos Markos1,3, Getinet Woyessa1, David Furniss4, Angela B. Seddon4, Rafael J. Taboryski2, and O. Bang1,3,5

Author Affiliations

  • 1DTU Fotonik, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
  • 2DTU Nanolab, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
  • 3NORBLIS, DK-2830 Virum, Denmark
  • 4Mid-Infrared Photonics Group, University of Nottingham, Nottingham NG7 2RD, UK
  • 5NKT Photonics, DK-3460 Birkerød, Denmark

Abstract

Thermal nanoimprinting is a fast and versatile method for transferring the anti-reflective properties of subwavelength nanostructures onto the surface of highly reflective substrates, such as chalcogenide glass optical fiber end faces. In this paper, the technique is explored experimentally on a range of different types of commercial and custom-drawn optical fibers to evaluate the influence of geometric design, core/cladding material, and thermo-mechanical properties. Up to 32.4% increased transmission and 88.3% total transmission are demonstrated in the 2–4.3 μm band using a mid-infrared (IR) supercontinuum laser.

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