Electromagnetic Properties of Plant Leaves at Terahertz Frequencies for Health Status Monitoring

Abstract

The realization of water as an important and fundamental component requires in photosynthesis, nutritional transport, and to the effective and timely growth of plant leaves. In this work, a novel technique has been presented to determine the electromagnetic parameters of plant leaves. The measurements results of electromagnetic parameters are discussed in detail. Upon a close observation, it has been found both permittivity and a refractive index of fresh leaves showed a decline trend in their peak values from day 1 to 4 due to the rapid evaporation of moisture in tissues of leaves, and variations occurred in the morphological structure of fresh and water-stressed leaves. The technique proposed here can be employed for feasible and non-invasive plant leaves health monitoring.