Scientists at the Los Alamos National Laboratory (LANL) have made a breakthrough in the study of plant tissues at the molecular level. They have developed a new imaging method called “Optica” that minimizes the effects of light on plants, especially during nighttime. Physicist Duncan Ryan and his team showcased this new technique, which allows for the observation of plant tissues with minimal lighting, revealing their nighttime activity.
The basis of this new method is the concept of the “ghostly image,” which relies on quantum entanglement. By using two photons emitted simultaneously, one interacts with the plant sample while the other captures an image in a separate area. This setup enables scientists to gather precise data on plant conditions without causing damage due to excessive light exposure.
The researchers directed infrared photons towards the plant while visible photons were directed elsewhere. The camera accurately captured each visible photon while the infrared photons interacted with the plant. Through a sophisticated system of detectors, the team was able to reconstruct an image of the plant tissue without the photons actually touching its surface. This innovative approach allowed them to observe plant responses to darkness, such as the closure of stomata at night.
This new imaging system enables scientists to monitor subtle changes in light absorption by plants over extended periods, facilitating the study of processes like circadian rhythms. Understanding how plants utilize water and light throughout the day has significant implications for fields such as biology and agronomy, paving the way for further advancements in plant research.