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Far UV-C explained!

March 16, 2022
Videnskab.dk, a Danish independent news media making science accessible to the public, has published an article about UV light and Far UV-C: 

Congratulations to Peter Tønning and Emil Zanchetta Ulsig for the great article!

First quantum-safe data transfer carried out in the Nordics

Feb. 23, 2022
Danske Bank reports the first ever quantum-safe data transfer performed out of a research lab in Scandinavia:


This information was also reported by KPMG:


This breakthrough was done as part of our research project "CryptQ" led by DTU Physics, in which Innovation Fund Denmark has invested DKK 22.5 million. The purpose is to secure Denmark a position in the world market with a cost-effective technology for quantum communication. Our role as work package leader is to develop power-efficient lasers with extreme stability.

EPIC Online Technology Meeting on UV Disinfection

Jan. 31, 2022
Nicolas Volet will discuss the recent progress on far-UVC technologies, and the collaboration between Aarhus University and UV Medico.


A full list of publications and conference presentations is available in PDF at this link. Below are listed our five most recent publications, and the five most representative.

Five most recent publications:

  • E. J. Stanton, J. Chiles, N. Nader, G. Moody, N. Volet, L. Chang, J. E. Bowers, S. W. Nam, and R. P. Mirin, “Efficient second harmonic generation in nanophotonic GaAs-on-insulator waveguides”, Opt. Express 28, 9521–9532 (2020).
  • A. S. Raja, J. Liu, N. Volet, R. N. Wang, J. He, E. Lucas, R. Bouchand, P. Morton, J. Bowers, and T. J. Kippenberg, “Chip-based soliton microcomb module using a hybrid semiconductor laser”, Opt. Express 28, 2714–2721 (2020).
  • L. Chang, A. Boes, P. Pintus, J. D. Peters, MJ Kennedy, X.-W. Guo, N. Volet, S.-P. Yu, S. B. Papp, and J. E. Bowers, “Strong frequency conversion in heterogeneously integrated GaAs resonators”, APL Photonics 4, 036103 (2019).
  • E. J. Stanton, A. Spott, J. Peters, M. L. Davenport, A. Malik, N. Volet, J. Liu, C. D. Merritt, I. Vurgaftman, C. S. Kim, J. R. Meyer, and J. E. Bowers, “Multi-spectral quantum cascade lasers on silicon with integrated multiplexers”, Photonics 6, 6 (2019).
  • L. Chang, A. Boes, X. Guo, D. T. Spencer, MJ Kennedy, J. D. Peters, N. Volet, J. Chiles, A. Kowligy, N. Nader, D. Hickstein, E. J. Stanton, S. A. Diddams, S. B. Papp, and J. E. Bowers, “Heterogeneously integrated GaAs waveguides on insulator for efficient frequency conversion”, Laser Photon. Rev. 12, 1800149 (2018).

Five most representative publications:

  • D. T. Spencer, T. Drake, T. C. Briles, J. Stone, L. C. Sinclair, C. Fredrick, Q. Li, D. Westly, B. R. Ilic, A. Bluestone, N. Volet, T. Komljenovic, L. Chang, S. H. Lee, D. Y. Oh, M.-G. Suh, K. Y. Yang, M. H. P. Pfeiffer, T. J. Kippenberg, E. Norberg, L. Theogarajan, K. Vahala, N. R. Newbury, K. Srinivasan, J. E. Bowers, S. A. Diddams, and S. B. Papp, “An optical-frequency synthesizer using integrated photonics”, Nature 557, 81–85 (2018).
  • N. Volet, X. Yi, Q.-F. Yang, E. J. Stanton, P. A. Morton, K. Y. Yang, K. J. Vahala, and J. E. Bowers, “Micro-resonator soliton generated directly with a diode laser”, Laser Photon. Rev. 12, 1700307 (2018).
  • N. Volet, A. Spott, E. J. Stanton, M. L. Davenport, L. Chang, J. D. Peters, T. C. Briles, I. Vurgaftman, J. R. Meyer, and J. E. Bowers, “Semiconductor optical amplifier at 2.0-μm wavelength on silicon”, Laser Photon. Rev. 11, 1600165 (2017).
  • L. Chang, Y. Li, N. Volet, L. Wang, J. D. Peters, and J. E. Bowers, “Thin film wavelength converters for photonic integrated circuits”, Optica 3, 531–535 (2016).
  • N. Volet, T. Czyszanowski, J. Walczak, L. Mutter, B. Dwir, Z. Mickovic, P. Gallo, A. Caliman, A. Sirbu, A. Mereuta, V. Iakovlev, and E. Kapon, “Transverse mode discrimination in long-wavelength wafer-fused vertical cavity surface-emitting lasers by intra-cavity patterning”, Opt. Express 21, 26983–26989 (2013).