The new SPARROW single-photon source is is based on self-assembled InAs quantum dots coupled to a slow-light photonic-crystal waveguide made using a unique processing technology. The slow-light sections feature a low group velocity in order to increase light-matter interaction while the weak-dispersion sections enable more efficient chip out-coupling. Each end of the waveguide structure is coupled to carefully engineered suspended nano-beam waveguides and out-coupling gratings. The increased coupling efficiency from the quantum dot to the waveguide relies on the strong suppression of radiation modes together with an enhanced coupling into the waveguide mode. This makes it very robust to spatial and spectral dispersity meaning that the quantum dots are efficiently coupled.
HERE’S HOW IT WORKS
Shoot a laser pulse at our SQT quantum-dot chip and it will deliver a stream of single photons. An optical cryostat equipped for confocal spectroscopy is required, but use is simple and straightforward. Don’t spend years developing this capability on your own. Use ours to further your research now.
The standard SQT-chip with gratings for vertical out-coupling
GET RESULTS FASTER
Quantum and nanophotonics research requires sophisticated nanostructures. Having students and postdocs develop them is expensive, time-consuming, and often leads to inferior device quality. The SPARROW single-photon chip provides a faster, better, and cheaper solution, leveraging unique possibilities for your research in the easiest possible way.
PROFESSIONAL QUANTUM DESIGN AND NANOPRODUCTION
The SQT-chip builds on a decade of cutting-edge research and our chips are produced in dedicated nanoproduction facilities. Get in touch with us to discuss your specific needs and interest. Production and delivery is quick and easy. Custom versions available.
High count rates
Optimized output coupling
Photonic quantum simulators
Fundamental quantum optics
and much more
WHAT WE PROVIDE
Diced single photon chip
Detailed characterization report
Extensive system integration support
Multiple customization options
|Emission wavelength (ground state)
||< 15 K
|Excitation power (single photon regime)
||< 1+4000 nW depending on wavelength
| Excitation pulse length
|| 1-10 ps recommended
| Decay time (bulk)
|| Typical 1 ns
|Waveguide mode coupling efficiency (β factor)
||> 90 %
|Second order coherence, g(2)(0)
|Chip Dimensions (mm)
HOW EXPENSIVE IS IT?
Amazingly enough our single-photon source is not nearly as expensive as one might imagine. 10 years of research. Multiple patents. All rolled into a very compact package that delivers a whopping 98% coupling efficiency can be yours for less than EUR 20.000 depending on the level of customization required.
Integration with a Montana Instruments Cryo-Optic system for a complete table-top source.
INTERESTED? GET IN TOUCH
Interested in taking your research to the next level with our state-of-the-art single-photon source? Give us a call or use the contact form on this page to get in touch with us. We will be happy to demonstrate capabilities and provide more documentation. We are also able to customize chip behavior to your specific needs.