Nanophotonic Devices Group

The Nanophotonic devices group designs, fabricates, and characterizes nanophotonic devices including lasers, waveguides, microresonators, quantum dots, photonic crystals and sensors.

We work on broad range of topics from advanced passive devices for frequency and spatial domain light manipulation to complex integrated optoelectronic components with tailored material responses to allow light emission and light control in the temporal domain. Our group also strives to connect the state-of-the-art technologies with the real-world application by developing novel photonic devices.

Our research efforts can be categorized into the following topics:

 Research technologies

Application areas 

Please visit the dedicated pages for more information.
Exciting research opportunities are available for students who are interested. 

Group Leader: Kresten Yvind

Picture of the Month

SEM picture from a Fagprojekt showing a smooth waveguide sidewall obtained by using a dry-etching process with reduced passivation. Credits: Adrian Holm Dubré, Bjørt Óladóttir Joensen, Simon Klinck Borregaard

For previous "Picture of the Month" winners, Visit link.

MOVPE program and mask layout


Design of devices: Optical, electrical and mechanical simulations, mask design, epitaxial design.
Yellow room


All our research projects have an element of synthesis, i.e. typically fabrication activities in the Danchip cleanroom. The group is running the MOVPE system and has extensive knowledge within e-beam lithography, dry etching and complex electro-optic  device geometries.
Probing station


We characterize both materials and devices using a number of test stations. Setup for planar devices, edge-emitting lasers, VCSELs, mode-locked lasers and micro-PL have been built.

News Update

April 2019
Congratulations to Aurimas Sakanas for his successful PhD defence with his thesis on Buried Heterostructure Photonic Crystal Lasers.

March 2019
We have been granted with a new project "Semiconductor Tailorable Pulse Source (STEPS) on MEMS tuneable VCSELs". We will investigate, improve and exploit the dynamic coherence properties of swept VCSELs.
Two research positions are open for application:
PhD scholarship in MEMS tuneable VCSELs
Postdoc in Fabrication of MEMS tuneable VCSELs

December 2018
Our recent work on AlGaAs-on-insulator chip for optical signal processing made the cover of Laser & Photonics Reviews 2018:

Minhao Pu, Hao Hu, Luisa Ottaviano, Elizaveta Semenova, Dragana Vukovic, Leif Katsuo Oxenløwe, and Kresten Yvind. "Ultra‐Efficient and Broadband Nonlinear AlGaAs‐on‐Insulator Chip for Low‐Power Optical Signal Processing." Laser & Photonics Reviews (2018)

March 2018
Congratulations to Hitesh Kumar Sahoo for his successful PhD defence with his thesis on Wavelength Tunable MEMS VCSELs

November 2017
Congratulations to our group leader Kresten Yvind  for winning the Electro-prize 2017 from the association of Danish engineers for “Fabrication of advanced semiconductor components for optical communication”. More (in danish).

October 2017
Read more on  Lars H. Frandsen views on Silicon Photonics being the technology of the future (

September 2017
Congratulations to Miranda Mitrovic (Now at OFS) for successfully defending her thesis on Fabrication and characterization of silicon rich nitride waveguides for nonlinear applications.
Thanks to Luisa Ottaviano for being a wonderful colleague for 9 years. We wish you all the very best at Alight

August 2017
Dr. Minhao Pu will give an invited talk at the Asia Communications and Photonics Conference (ACP 2017) which will take place in Guangzhou, China during the period 10th to 13th November 2017. In his talk “An ultra-efficient nonlinear integrated platform for optical signal generation and processing”, he will review the recent progress in the nonlinear AlGaAs-on-insulator platform.
Welcome to Czcibor Ciostek and Bartosz Ston from Wroclaw University of Science & Technology, who will work with Elizaveta on growth and characterization of quantum wells.

July 2017
Congratulations to Mohammad Esmail Aryaee Panah for successfully defending his thesis on Design and fabrication of mid-infrared plasmonic materials based on highly doped III-V semiconductors.

June 2017
Paper Published: Panah, Mohammad Esmail Aryaee; Semenova, Elizaveta; Lavrinenko, Andrei / Enhancing Optical Forces in InP-Based Waveguides.
Paper Published:Panah, Mohammad Esmail Aryaee; Han, Li; Norrman, Kion; Pryds, Nini; Nadtochiy, A.; Zhukov, A. E.; Lavrinenko, Andrei; Semenova, Elizaveta/ Mid-IR optical properties of silicon doped InP.

May 2017
Lars and Xiaowei have received a grant from the Danish Council for Independent Research | Technology and Production (DFF-FTP) and title of the project is “Athermal Silicon Waveguide Platform for Temperature-Insensitive Photonic Integration”. Collaborating with Zhejiang University in China and Odense University Hospital in Denmark, this two-years grant is aiming to resolve the thermal drift problem of on-chip silicon photonic devices for optical communications as well as for optical biosensors.