---
_id: '13338'
abstract:
- lang: eng
  text: This work discusses the additive manufacturing of an axicon lens using cyclic
    olefin copolymer (TOPAS), and its characterization between 100 GHz and 300 GHz.
    The proposed manufacturing process followed by dip-coating post-processing provides
    an improved surface finish. Additionally, the terahertz output of the lens remains
    intact over the entire frequency range.
author:
- first_name: Abhijeet Narendra
  full_name: Shrotri, Abhijeet Narendra
  id: '74090'
  last_name: Shrotri
  orcid: 0000-0003-2116-156X
- first_name: Suraj
  full_name: Joshi, Suraj
  last_name: Joshi
- first_name: Lea
  full_name: Vogel, Lea
  id: '77129'
  last_name: Vogel
- first_name: Annamarija
  full_name: Starsaja, Annamarija
  last_name: Starsaja
- first_name: Oliver
  full_name: Stübbe, Oliver
  id: '51864'
  last_name: Stübbe
  orcid: 0000-0001-7293-6893
- first_name: Sascha
  full_name: Preu, Sascha
  last_name: Preu
citation:
  ama: Shrotri AN, Joshi S, Vogel L, Starsaja A, Stübbe O, Preu S. <i>Terahertz Axicon
    Lenses</i>. IEEE; 2026:2. doi:<a href="https://doi.org/10.1109/irmmw-thz61557.2025.11319870">10.1109/irmmw-thz61557.2025.11319870</a>
  apa: Shrotri, A. N., Joshi, S., Vogel, L., Starsaja, A., Stübbe, O., &#38; Preu,
    S. (2026). Terahertz Axicon Lenses. In <i>2025 50th International Conference on
    Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)</i> (p. 2). IEEE. <a href="https://doi.org/10.1109/irmmw-thz61557.2025.11319870">https://doi.org/10.1109/irmmw-thz61557.2025.11319870</a>
  bjps: '<b>Shrotri AN <i>et al.</i></b> (2026) <i>Terahertz Axicon Lenses</i>. Piscataway,
    NJ: IEEE.'
  chicago: 'Shrotri, Abhijeet Narendra, Suraj Joshi, Lea Vogel, Annamarija Starsaja,
    Oliver Stübbe, and Sascha Preu. <i>Terahertz Axicon Lenses</i>. <i>2025 50th International
    Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)</i>. Piscataway,
    NJ: IEEE, 2026. <a href="https://doi.org/10.1109/irmmw-thz61557.2025.11319870">https://doi.org/10.1109/irmmw-thz61557.2025.11319870</a>.'
  chicago-de: 'Shrotri, Abhijeet Narendra, Suraj Joshi, Lea Vogel, Annamarija Starsaja,
    Oliver Stübbe und Sascha Preu. 2026. <i>Terahertz Axicon Lenses</i>. <i>2025 50th
    International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)</i>.
    Piscataway, NJ: IEEE. doi:<a href="https://doi.org/10.1109/irmmw-thz61557.2025.11319870">10.1109/irmmw-thz61557.2025.11319870</a>,
    .'
  din1505-2-1: '<span style="font-variant:small-caps;">Shrotri, Abhijeet Narendra</span>
    ; <span style="font-variant:small-caps;">Joshi, Suraj</span> ; <span style="font-variant:small-caps;">Vogel,
    Lea</span> ; <span style="font-variant:small-caps;">Starsaja, Annamarija</span>
    ; <span style="font-variant:small-caps;">Stübbe, Oliver</span> ; <span style="font-variant:small-caps;">Preu,
    Sascha</span>: <i>Terahertz Axicon Lenses</i>. Piscataway, NJ : IEEE, 2026'
  havard: A.N. Shrotri, S. Joshi, L. Vogel, A. Starsaja, O. Stübbe, S. Preu, Terahertz
    Axicon Lenses, IEEE, Piscataway, NJ, 2026.
  ieee: 'A. N. Shrotri, S. Joshi, L. Vogel, A. Starsaja, O. Stübbe, and S. Preu, <i>Terahertz
    Axicon Lenses</i>. Piscataway, NJ: IEEE, 2026, p. 2. doi: <a href="https://doi.org/10.1109/irmmw-thz61557.2025.11319870">10.1109/irmmw-thz61557.2025.11319870</a>.'
  mla: Shrotri, Abhijeet Narendra, et al. “Terahertz Axicon Lenses.” <i>2025 50th
    International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)</i>,
    IEEE, 2026, p. 2, <a href="https://doi.org/10.1109/irmmw-thz61557.2025.11319870">https://doi.org/10.1109/irmmw-thz61557.2025.11319870</a>.
  short: A.N. Shrotri, S. Joshi, L. Vogel, A. Starsaja, O. Stübbe, S. Preu, Terahertz
    Axicon Lenses, IEEE, Piscataway, NJ, 2026.
  ufg: '<b>Shrotri, Abhijeet Narendra u. a.</b>: Terahertz Axicon Lenses, Piscataway,
    NJ 2026.'
  van: 'Shrotri AN, Joshi S, Vogel L, Starsaja A, Stübbe O, Preu S. Terahertz Axicon
    Lenses. 2025 50th International Conference on Infrared, Millimeter, and Terahertz
    Waves (IRMMW-THz). Piscataway, NJ: IEEE; 2026.'
conference:
  end_date: 2025-08-22
  location: ' Helsinki, Finland '
  name: 50th International Conference on Infrared, Millimeter, and Terahertz Waves
    (IRMMW-THz)
  start_date: 2025-08-17
date_created: 2026-01-16T14:48:22Z
date_updated: 2026-02-10T12:42:43Z
department:
- _id: DEP5020
- _id: DEP6020
doi: 10.1109/irmmw-thz61557.2025.11319870
keyword:
- Manufacturing processes
- Surface waves
- Three-dimensional printing
- Surface finishing
- Surface treatment
- Lenses
language:
- iso: eng
page: '2'
place: Piscataway, NJ
publication: 2025 50th International Conference on Infrared, Millimeter, and Terahertz
  Waves (IRMMW-THz)
publication_status: published
publisher: IEEE
status: public
title: Terahertz Axicon Lenses
type: conference_editor_article
user_id: '83781'
year: '2026'
...