The production and use of silicon microcolumn arrays that harvest light from a laser pulse to produce ions are described. The systems of the present invention seem to behave like a quasi-periodic antenna array with ion yields that show profound dependence on the plane of laser light polarization and the angle of incidence. By providing photonic ion sources, this enables enhanced control of ion production on a micro/nano scale and direct integration with miniaturized analytical devices.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH
The subject matter of this application was made with support from the United States Government under Grant No. DEFG02-01ER15129 from the Department of Energy. The United States Government retain certain rights in the invention.