We offer:

• Highly stable enhancement cavities for second harmonic generation.
• Development of custom optomechanical solutions, especially for nonlinear optics.
• Design of non-standard optomechanical parts for your application.
• Prototyping and small series production of optomechanics and laser systems.
• We turn your lab-style setup into a compact and robust unit.
• Ask us! We are eager to master your challenges.

Stephan Hannig

Founder & CEO

Stephan studied Physics in Göttingen and Dortmund. Afterwards he joint Prof. Dr. Piet Schmidt´s group at Germany´s National Metrology Institute PTB in Braunschweig and gained experience in high precision laser setups and single ion spectroscopy. In 2018 he received his PhD for the development and characterization of a transportable aluminum ion quantum logic optical clock setup from the Leibniz Universität Hannover. Subsequently, Stephan became head of the clock lab in the Hannover Institute of Technology (HITec) to concentrate on the development of compact and robust hardware for the next generation of optical clocks. In 2019 he founded Agile Optic GmbH.

List of selected Publications

• J. Cai, M. Stoepper, P. Agarwal, L. Palánki, C. Alarcón-Robledo, W. W. W. Liu, P. Kukreja, R. Ferstl, H. Foltas, L. Möller, D. J. Brown, C. J. H. Rich, M. Chiarotti, T. Uusitalo, R. Thomas, J. Domarkas, M. Guina, J.-P. Penttinen, S. Stellmer, N. Poli, S. C. Wright, S. Hannig, S. Truppe
  Robust watt-level continuous-wave deep-ultraviolet lasers near 230 nm
  ArXiv preprint: https://arxiv.org/abs/2608.25544.
• K. Subramanian, H. Tanaka, S. J. Herr, N. K. Sah, G. Jha, F. Zacherl, S. A. Pradeep, V. Andriushkov, K. Zhang, D. Fenner, Y. Wang, M. Hugenschmidt, F. Kühnemann, G. G. M. Bonetti, S. Ui, M. Bickermann, C. Ma, X. Zheng, M. Zopf, B. Lommel, J. C. Müller, S. Hannig, D. Budker, F. Schmidt-Kaler, L. von der Wense :
  Generation of continuous-wave laser light at 148.4 nm using cavity-enhanced second harmonic generation in BaMgF₄
  Optica 13, 2089-2095 (2026);
  https://doi.org/10.1364/OPTICA.609757.
• B. Kraus, F. Dawel, S. Hannig, J. Kramer, C. Nauk, and P. O. Schmidt :
  Phase-stabilized UV light at 267 nm through twofold second harmonic generation.
  Opt. Express 30, 44992-45007 (2022);
  https://doi.org/10.1364/OE.471450.
• J. C. Shaw, S. Hannig, and D. J. McCarron:
  Stable 2 W continuous-wave 261.5 nm laser for cooling and trapping aluminum monochloride.
  Opt. Express 29, 37140-37149 (2021);
  https://doi.org/10.1364/OE.441741.
• S. Hannig, L. Pelzer, N. Scharnhorst, J. Kramer, Z.T. Xu, M. Stepanova, N. Spethmann, I.D. Leroux, T. E. Mehlstäubler, and P. O. Schmidt:
  Towards a transportable Al optical ion clock.
  Review of Scientific Instruments 90, 053204 (2019);
  https://doi.org/10.1063/1.5090583.
  The publication has been selected as editor´s pick.
• L. Klaus, H. Bothe, S. Hannig:
  Vibration Testing to Assess the Transport Behaviour of Reference Standards and Mobile Scientific Devices.
  IOP Conf. Series: Journal of Physics: Conf. Series 1065 (2018) 222015;
  https://doi.org/10.1088/1742-6596/1065/22/222015.
• S. Hannig, J. Mielke, J. A. Fenske, M. Misera, N. Beev, C. Ospelkaus, and P. O. Schmidt:
  A highly stable monolithic enhancement cavity for SHG generation in the UV.
  Review of Scientific Instruments 89, 013106 (2018);
  https://doi.org/10.1063/1.5005515.
  The publication has been selected as AIP Scilight:
  https://doi.org/10.1063/1.5021479.
• N. Beev, J. A. Fenske, S. Hannig, and P. O. Schmidt:
  A low-drift, low-noise, multichannel dc voltage source for segmented-electrode Paul traps.
  Review of Scientific Instruments 88, 054704 (2017);
  https://doi.org/10.1063/1.4983925
• N. Scharnhorst, J. B. Wübbena, S. Hannig, K. Jakobsen, J. Kramer, I. D. Leroux, and P. O. Schmidt.
  High-bandwidth transfer of phase stability through a fiber frequency comb.
  Optics Express, Vol. 23, Issue 15, pp. 19771-19776 (2015);
  https://doi.org/10.1364/OE.23.019771.