The ability to generate, manipulate, and detect photons on a lithographically patterned chip has changed the way we think about using light for advanced technologies. The Integrated Photonic Systems project at NIST Boulder is using light in a chip-scale environment to advance three fields of science and technology.
Combining integrated photonics with superconducting electronics is a promising approach to achieving large-scale neuromorphic systems . Optical signals broadcast over a network of nanophotonic waveguides enable massive connectivity between artificial neurons [2,3]. Superconducting single-photon detectors integrated with waveguides enable extraordinary energy efficiency . Together, neurons based on these devices can achieve the complexity and connectivity of the human brain. We are currently developing the devices and systems to enable this extremely promising technology for large-scale neuromorphic computing.
On-chip sources of quantum states of light waveguide-integrated with high-efficiency superconducting-nanowire single-photon detectors provide opportunities for new experiments related to the quantum nature of the electromagnetic field. Here we are pursuing electrically injected point defects in silicon  as well as entangled-pair sources  to produce quantum states of light. The integration of quantum sources with superconducting single-photon detectors in a nanophotonic environment enables unique opportunities for on-chip spectroscopy, on-demand single-photon sources, on-chip loophole-free Bell experiments, and photonic quantum computing.
Frequency combs have proven immensely useful for high-precision spectral and temporal measurements which are crucial for optical clock standards, spectroscopy, and GPS. For spectroscopic monitoring of the atmosphere and environment as well as chemical synthesis, mid- and longwave-IR combs are required. We are utilizing silicon and gallium arsenide to generate and engineer the optical spectrum of frequency combs from 3 µm – 12 µm. Using silicon-on-sapphire waveguides, we have demonstrated broadening of fiber-generated frequency combs to cover the spectral range from 3 µm - 6 µm for spectroscopy and trace gas sensing. We have used this mid-IR light source in a dual-comb configuration for spectroscopy at 5 µm .
We currently have opportunities for postdocs on all three of these projects. NIST Boulder and the University of Colorado are within walking distance of each other, creating a vibrant intellectual and scientific community. With over 300 sunny days per year and ample opportunities for outdoor and cultural recreation, Boulder is an excellent place to live. The salary of a starting postdoc at NIST is $70,000, far superior to many academic postdoc salaries. Please contact Jeff Shainline (firstname.lastname@example.org) and Sonia Buckley (email@example.com) if you are interested in these opportunities.
 J.M. Shainline et al., “Superconducting optoelectronic circuits for neuromorphic computing”, Phys. Rev. Applied, 7, 034013 (2017).
 S. Buckley et al., “All-silicon light-emitting diodes waveguide-integrated with superconducting single-photon detectors”, Appl. Phys. Lett., 111, 141101 (2017).
 J. Chiles et al., “Multi-planar amorphous silicon photonics with compact interplanar couplers, cross talk mitigation, and low crossing loss”, Appl. Phys. Lett. Photonics, 2, 116101 (2017).
 J. M. Shainline et al., “Room-temperature-deposited dielectrics and superconductors for integrated photonics," Optics Express 25, 10322 (2017).
 C.M. Gentry et al., “Quantum-correlated photon pairs generated in a commercial 45 nm complementary metal-oxide-semiconductor microelectronic chip,” Optica, 2, 1065 (2015).
 N. Nader et al., “Versatile silicon-waveguide supercontinuum for coherent mid-infrared spectroscopy,” arXiv:1707.03679, (2017).