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Biospeckle Laser Method IDs Fruits’ Peak Ripeness

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There is a relatively small window of “peak edibleness” for fruits such as apples and tomatoes. Imagine being able to fit in that window at precisely the right time for an optimal harvest. That is now possible with a new laser technique. A team from Saint Joseph University in Lebanon and the University of Western Brittany in France has developed the laser biospeckle technique, allowing them to noninvasively detect the peak of ripeness of climacteric fruits — apples, bananas, pears, melons and tomatoes, among others. A laser beam, polarizers and quarter-wave...Read full article

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