Celebrations
History
World Hello Day — 21 November
Celebrate like it's 2025.
A look back at the various milestone events celebrated by Optica this year.
International Day of Light
More than 50 student chapters hosted an event right before or on 16 May 2025 — the International Day of Light. They watched quantum-related programs, engaged in learning exercises and (based on the photos we received) consumed a significant amount of pizza.
In one magical day, they helped us showcase what Optica stands for – the sharing of knowledge, connecting with colleagues and helping the world to recognize the importance of light in science.
World Photography Week
Did you know that Edwin H. Land demonstrated an instant camera and associated film at OSA's Winter Meeting in 1947?
From the Land Camera to today's technologies for imaging and observations of deep space, and from the microscopic to a vast universe, the Optica community has been responsibile for capturing the beauty and wonder of the world (and beyond).
International Coffee Day
In one year, Optica Conferences and Congresses serve more than 2,000 gallons/7,570 liters of coffee to event attendees. We know how much the Optica community loves its coffee. But, even we were surprised to find that solar cells could use some caffeine, too.
You can read more about how certain perovskite PVs benefit from a jolt of caffeine or a sensing system that detects micro-toxic elements in a seemingly benign cup of joe — all collected in a digest of images and features to recognize International Coffee Day.
International Cat Day
Is he or isn't he?
Opticat, our unofficial mascot, has jumped in a box. And while we wait to determine the answer to Schrödinger question, we're exploring all of the pawsitively amazing ways cats pop up in optics - as the foundation for quantum mechanics, a visual effect, inspiration for new technology or as a fluffy friend sprawled across your keyboard.
International Year of Quantum
On 07 June 2024, the United Nations proclaimed 2025 as the International Year of Quantum Science and Technology (IYQ).
This year-long, worldwide initiative is observed through activities at all levels aimed at increasing public awareness of the importance of quantum science and applications.
Fight Procrastination Day
Your paper is almost due, and yet, you reach impulsively for your phone and seek its infinite diversions.
We compiled a few of our favorite recent features — from a 3-D cinema for insects to diminutive VR goggles for rodents. It's an opportunity to put work aside for a while and still feel like you're conducting scientific research.
