Who we are?


We have a strong scientific background and extensive knowledge in R&D and innovation. The founder team has developed and patented the Timegated® Raman innovation which they have also commercialized. This multi-talented team has a lot of experience in spectroscopy, research, pharmaceuticals, mining, PAT and data applications. We want to spread the joy of time-gating and ensure that is available for all who want to get more out of their material analysis.

We help you to accelerate your material research, solve complex analytical challenges and increase your productivity. Our mission is to help you with making the world healthier, cleaner, safer and more efficient. We want to hear about your analytical challenges!


Oulu, Finland


Tutkijantie 7,
90590 Oulu, Finland

info (at) timegate.com
Tel: +358407504425

Invoice address:

Timegate Instruments Oy
PL 100
FI-80020 Kollektor Scan

PDF-files to 26156492@scan.netvisor.fi

Meet the team who went further no Raman has gone before


Mari Tenhunen

CEO, Co-founder

Mari is one of the founders and the CEO of the company. She has over 20 years of experience in industrial process instrumentation applications in her previous jobs. At VTT she worked as a team leader and senior scientist. Mari has excellent organizational skills with good sense of business. In Timegate, Mari wants to create inspiring workplace with strong company culture and ambitious goals. In addition to CEO’s duties, her responsibility is to find new applications, new markets and new potential customers for the Timegate’s products and technology. She is the ´mother´ of office dog Tapsu.


Lauri Kurki

Chief Scientist, Co-founder

Lauri is a main tech & science guy and one of the founders. He has M.Sc. in theoretical physics and more than a decade of experience in the applied variety. You most probably find him in the lab, working on the hardware, software and esoteric math to make it all function together. He loves not only inelastic scattering but also photoluminescence and good humour.


Elina Aronen-Raappana

Communications and Marketing Manager

Elina is creative and goal-directed communications and marketing professional with M.A. in Science Communications. She has over 15 years of experience in every segment of marketing communications: from hands-on execution to strategic work as a team leader and a member of executive board. Her working background consists of organizational communications and leading it, public relations, journalism, graphic design, marketing, sales and project management. Elina has been working in various types of industries such as the health sector, education, science and research, ICT, travel industry, construction and engineering as well as in marketing agency. Elina has a solution-oriented and energetic attitude with cheerful personality.


Amuthachelvi Daniel

Dr. (Biophotonics), Senior Application Specialist

Amutha has a doctoral degree in Biophotonics with 10 years of experience in application of Raman spectroscopy for cancer/precancer detection and Raman imaging of cells and tissues. She was also a recipient for Marie Sklodowska Curie IF fellowship and has done extensive work in cancer diagnosis using continuous wave Raman spectroscopy and SERS. Furthermore, she has explored the possibility of discriminating negative cytology from different grades of dysplasia of oral exfoliated cells using time-gated Raman spectroscopy. Now she is focusing on the applicability of timegated Raman technology in mining, pharmaceutical and food industries. Cooking spicy Indian food is her relaxation.


Bryan Heilala

Application Specialist

Bryan is a young and energetic chemist with a degree in M.Sc. (chemistry) and experience and background in analytical chemistry. He has work experience in fields of pharmaceuticals, mining industries and R&D projects. Bryan is focused on studying Timegated Raman spectroscopy applications and development of data processing algorithms and routines. Bryan is our mysterious ‘TGI man’ as seen in our completely serious TGI videos.


Veli Heikkinen

Dr. (Tech), Head of Project Management

Veli is a hard-boiled photonics R&D guy for a variety of applications. He has managed development projects in domestic and international environments both in a large research institute and in SMEs. His core competence lies in the photonics module and optical instrument technologies. He has mentored Doctoral and Master's theses, authored scientific publications, given presentations in international conferences and acted as a reviewer in scientific journals. In free time he reads, runs, skis (usually only in winter), lifts weights and does forestry work with his best friends, the clearing saw, and the chain saw.


Risto Hyypiö

Principal R&D Engineer

Risto has a M.Sc in Electronics and more than 15 years of design experience of various types of electronic gadgets including optoelectronic devices, high-speed electronics and even consumer products. Over the past five years, Risto has focused more on optoelectronic system design, single-photon counting technology, optics and optomechanics. Risto likes to act as a glue between the customer, R&D team and marketing.


Petteri Aitta

Senior R&D Specialist

Petteri is our creative and productive R&D specialist with M.Sc. in Electronics. His core competences include electronics design in analog and digital domain, optoelectronics design and system design engineering. He has a lot of experience in designing various kinds of optical measurement devices in close collaboration with mechanics, optics and software designers. Petteri is hard working electronics designer who does not give-up until the system is working. Petteri is office dog Tapsu’s best friend.


Vineeth Prekar Karuppasamy

R&D Engineer

Vineeth is the youngest member of the team. He studied theoretical physics and graduated as a master of Photonics from the University of Eastern Finland in Joensuu. He has previously spent some time at ETH Zürich levitating nanoparticles with lasers. If he is not working with the photons collected by the SPAD detector he likes to hike and collect incoherent photons on CMOS sensors.


Juho Eskeli

Principal SW Engineer

Juho has a M.Sc in Software Engineering and 13 years of versatile design and development experience. He started his career developing server backend systems, then moving on to develop embedded & desktop software for optical measurement devices. The last few years he has been developing IoT systems focusing more on the embedded side. At Timegate he can put his whole skill set in use in heading the software development activities that span from the device firmware to the cloud. He enjoys twiddling with retro computers and has a working Commodore 64 in his office as well.


Dmitri Akhonen

Software Engineer

Dmitri is our software engineer with B.Sc. in Automation Engineering. He has gathered experience by working with industrial hardware and test automation systems in different fields of technology. Dmitri has important role in software development of our products and related applications. If you don't find him in the lab, he's in the kitchen getting angry at an empty coffee pot.

Arttu Kaikkonen nettisivuille

Arttu Kaikkonen

Production Manager

Arttu is our production manager with a B.Sc. in Aeronautical Engineering within Mechanical and Production Engineering. He has gathered experience from diverse industries. Arttu has a decade of experience working with military aviation, mainly with helicopters, including production planning, assembly environment, maintenance planning and ERP-systems. Past couple of years he has been working with railway industry also on customer interface in after-sales and service department.

Arttu is working as a hands-on guy for production, as a goal to contribute a productional take on our production. His spare time activities support our field of work, as he enjoys of various technical challenges with radio-controlled model airplanes and basically anything powered with combustion engine. Despite the serious background on his line of work, he enjoys good (dark)humour and relaxed atmosphere.


Visa Seppänen

Software Engineer

Visa has been excited about electronics and gadgets his whole life. This enthusiasm led him to graduate with M.Sc in Computer Science and Engineering focusing on embedded software. Right from the get-go he has overcome tasks that have challenged his competence, and his joy of tinkering is only growing. The closer he gets to work on the hardware of any device, the happier he gets. On his free time, you most likely find him streaming and speedrunning games or playing Magic: The Gathering.