EUOPS is lighting up the Royal Albert Memorial Museum

Members of EUOPS are teaming up with other scientists from the University of Exeter to take over the RAMM!

On Saturday 21st July, we will be setting up stalls all around the museum where families can learn about some of the wonderful exhibits in the museum. We want to show that physics, particularly the physics of light, is everywhere around us in the natural world. We’ll use science to explain things like glowing scorpions and brilliant blue butterflies. There will be arts-and-crafts activities (it may get a bit messy), experiments, games and quizzes – something for everyone in the family to enjoy and take part in.

The event will run from 10.00-12.30 and 13.30-16.00, entrance is free, and everyone is welcome to come along and see what we’re doing.

More information can be found on the RAMM website, or please contact Lauren at


IDL Photo and Poster Exhibition

We already started celebrating the International Day of Light (IDL) 2018 at the Forum of the University of Exeter with this wonderful photo and poster exhibition. These photos and posters are a special selection of the Exeter Photo and Poster Competition; there are finalist photos in the three categories: Light in Nature, Light in Technology, and Light in Your day-to-day. And there are three finalist posters as well. Winners will be announced at 3:30 pm, and wonderful prizes will be awarded to the winners.

There’s still one competition going on, which is the Social Media Award. Follow this link and like your favourite picture. The picture with most likes will win the Social Media Award. You can also vote for your favourite poster on twitter, just find them under #IDL2018exeter or #IDLposterexeter, the poster with most re-tweets will win the Social Media Award. This competition closes today at 3pm.

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Looking forward to celebrating the International Day of Light

We are really excited to be celebrating the International Day of Light 2018 in Exeter on May 16th!!

Find more information about our special activities here.

DSC_0105[1]From left to right: Henry Fernandez (President of EUOPS 2018), Alba Paniagua Diaz (President of EUOPS 2016), Erick Burgos (President of EUOPS 2017), and David Rivera (the newest member of EUOPS).

Honiton Festival of Imagination

We had so much fun showing experiments to kids attending from different local schools. There where 5 groups of 12 kids each along the day. For each group we explained how white light is formed by different colours, by using a colour mixer experiment. Then we showed them that white light can be decomposed into its different colours by using diffraction glasses. And then we showed them how things have a particular colour by reflecting white light, and those colours might be quite different when reflecting other light source rather than white light. Finally, we encouraged them to participate in a challenge: we had an ‘invisible pen’ and draw EUOPS on white paper that can be seen only when illuminated with ultra-violet light, we asked them why that drawing can be seen only with ultra-violet light, not when using white light as many other things? They will work on the answer as a group in their school, and they will send us an email with their answers, those that provide the right answer will receive a special prize from us.

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IDL Poster Competition- CLOSED for entries

As part of our celebration of the International Day of Light (IDL) 2018, we are pleased to invite you to participate in our IDL Poster Competition 2018!. You can win up to £50.


We are looking for posters that explain how light, in any way, is relevant in your research. All University of Exeter students can participate.


To participate, tweet the link to your poster with the hashtag #IDL2018exeter between the 30th of April and the 5th of May. The three finalists will have their posters printed and exhibited in the forum during the Photo and Poster award ceremony on the 11th of May. A jury of teachers, children and academics will choose the winner. We also have prizes for the most re-tweeted and liked poster!


The poster content has to communicate your investigation to the general public in the easiest way possible. The poster should be understandable in a self-contained manner, with references used sparingly, and only for those desiring more in-depth understanding.  Please refrain from using complicate terms, acronyms, jargon and complex concepts. We encourage you to use images, diagrams and plain English wherever possible.


Don’t forget that we are also running the IDL Photo competition 2018. For more information about both contests, please visit this link.


We are looking forward to your participation!

IDL Photo Competition- CLOSED for entries

The University of Exeter Optics and Photonics society (EUOPS) is pleased to invite you to participate in the International Day of Light (IDL) 2018 Photo ContestYou can win up to £100.

There will be three categories to which participants can submit their photos:

  • Light in your day-to-day: we are looking for photos that represent light in your daily life: commuting, working, relaxing at home or playing with your friends. Be creative, everything can be a good photo!
  • Light in technology: we interact with technology every day and more often than you think. In this category, we are looking for photos to show how light and technology work together to make your life easier: from the LCD screen on your phone to medical applications to help doctors to operate.
  • Light in nature: In this category, we are looking for photos where nature is the protagonist. Maybe a beautiful sunset, or the way that some animals reflect light to create some beautiful colours. The sky is the limit!

Submit your photo to with the subject of the email as follows:

“Name of the category – Name of the participant -IDL2018”.

You can submit one photo per category. Please provide a title and a caption (no more than 100 words). Entries close on the 4th of May at 23:59 UTC.

For more information about the entry rules, visit this link.

The IDL is a global initiative that provides an annual focal point for the continued appreciation of light and the role it plays in science, culture and art, education, and sustainable development, and in fields as diverse as medicine, communications, and energy. More information about the IDL on

We are looking forward to seeing your submissions!