Journal
APPLIED PHYSICS LETTERS
Volume 99, Issue 19, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3658873
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Funding
- Intelligence Advanced Research Projects Activity (IARPA) via Air Force Research Laboratory (AFRL) [FA8650-11-C-7104]
- Engineering and Physical Sciences Research Council [EP/C509765/1] Funding Source: researchfish
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By inducing two-photon absorption within the active layer of a proprietary silicon test chip, we demonstrate here solid-immersion-lens-enhanced nonlinear frequency-variation mapping of a 500-MHz ring oscillator circuit at 1560 nm. This work compares the performance of conventional single-photon linear methodologies against advanced two-photon alternatives and reports a maximum laser-induced change in the oscillator stage-delay of approximately 1 ps, and a signal injection resolution of 260 nm. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3658873]
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