Abstract
By using the electric-field-induced second-harmonic generation effect, we have detected electrical signals present on a complementary metal-oxide- semiconductor (CMOS) integrated circuit in a noncontact geometry. Femtosecond pulses with a wavelength of 2.16 µm were incident on the device and the second harmonic at 1.08 µm exhibited a field-dependent behavior. The conversion efficiency from the fundamental to the second harmonic was estimated to be -103 dB. © 2006 American Institute of Physics.
Original language | English |
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Article number | 114107 |
Journal | Applied Physics Letters |
Volume | 88 |
Issue number | 11 |
DOIs | |
Publication status | Published - 2006 |