Background Additive manufacturing has contributed to the growth of technology to fabricate structures that have enhanced performance in a wide range of applications. One example family of these structures is cellular, or meta-materials, which include honeycombs, foams, and lattices. These materials enable novel properties that exploit the nature of...

Piezoelectric materials can convert mechanical energy to electricity or vice versa and have enabled diverse applications such as energy harvesting and self-powered sensing. A wide variety of inorganic ceramics and organic polymers have been considered as piezoelectric materials. However, neither the piezoelectric ceramics nor the piezoelectric polymers...

Semiconductor lasers able to emit over the full visible color spectrum have a wide range of practical applications such as solid-state lighting, full-color displays, visible color communications, and multi-color fluorescence sensing. To the human eye, light with a mixture of four monochromatic lasers is visually equivalent to a white illuminant. Current...

According to the World Health Organization, there are hundreds of millions of people suffering from chronic respiratory diseases (CRDs), including asthma, COPD, sleep apnea, pulmonary hypertension and more. Measuring and characterizing lung functionality is an essential step toward diagnosing, monitoring and treating these respiratory conditions. The...