Problem: Nonlinear materials are used in laser light sources to modify or enhance the properties of incoming light. One of these techniques, second harmonic generation, is used to generate new light sources at double the frequency of the incoming light. This technique can be used to generate light at frequencies for which there is no convenient laser...

Problem: Most biosensors rely on a single sensing mode to detect the presence of a molecule of interest. These single-mode sensors face a tradeoff between sensitivity (the lower detection limit) and dynamic range (the difference between the lowest and highest concentrations that the sensor can detect). Additionally, single mode sensors only record...