2016-08-242016-08-242007-08-21http://hdl.handle.net/10919/72567Thin films exhibiting second-order nonlinear optical (NLO) properties, as well as materials and methods for producing such films, are provided. The films are formed by depositing, on a substrate, alternate layers of a polyelectrolyte and a low molecular weight chromophore. The chromophore contains an electrophilic group that reacts with a previously deposited polyelectrolyte, and ionizable groups which present absorption sites for the next polyelectrolyte layer. The films find application in, for example, electro-optic modulators and frequency doubling devices.application/pdfen-USPatenthttp://pimg-fpiw.uspto.gov/fdd/24/589/072/0.pdf11067218385/122428/420428/411.1428/500B82Y30/00G02F1/3615Y10T428/31504Y10T428/31536Y10T428/31663Y10T428/31725Y10T428/31855Y10T428/319097258924