• Corpus ID: 240354116

High-Q longwave infrared microresonators based on a non-epitaxial germanium platform

@inproceedings{Ren2021HighQLI,
  title={High-Q longwave infrared microresonators based on a non-epitaxial germanium platform},
  author={Dingding Ren and Chao Dong and David Patrick Burghoff},
  year={2021}
}
The longwave infrared (LWIR) region of the spectrum spans 8 to 14 μm and enables high-performance sensing and imaging for detection, ranging, and monitoring. Chip-scale integrated LWIR photonics has enormous potential for real-time environmental monitoring, explosive detection, and biomedicine. However, realizing advanced technologies such as precision sensors and broadband frequency combs requires ultra low-loss components, which have so far remained elusive in this regime. We demonstrate that… 

Figures and Tables from this paper

References

SHOWING 1-10 OF 49 REFERENCES
High-Q diamond microresonators in the long-wave infrared.
High quality factor (Q) photonic devices in the room temperature thermal infrared region, corresponding to deeper long-wave infrared with wavelengths beyond 9 microns, have been demonstrated for the
Low-loss silicon platform for broadband mid-infrared photonics
Broadband mid-infrared (mid-IR) spectroscopy applications could greatly benefit from today’s well-developed, highly scalable silicon photonics technology; however, this platform lacks broadband
High-Q silicon nitride microresonators exhibiting low-power frequency comb initiation
Optical resonators with high quality factors (Qs) are promising for a variety of applications due to the enhanced nonlinearity and increased photonic density of states at resonances. In particular,
Broadband integrated racetrack ring resonators for long-wave infrared photonics.
TLDR
These resonant structures establish the basis of a new generation of integrated building blocks for long-wave infrared photonics that opens the route towards miniaturized multitarget molecule detection systems.
Germanium-on-silicon waveguides for long-wave integrated photonics: ring resonance and thermo-optics.
Germanium-on-silicon (GOS) represents the leading platform for foundry-based long-wave infrared photonic integrated circuits (LWIR PICs), due to its CMOS compatibility and absence of oxides. We
Ge-rich graded SiGe waveguides and interferometers from 5 to 11 µm wavelength range.
TLDR
Ultra-broadband waveguides are experimentally demonstrated within unprecedented wavelength range, efficiently guiding light from 5 to 11 µm, and detailed analysis of propagation losses is reported, supported by secondary ion mass spectrometry measurement.
Ultra-smooth silicon nitride waveguides based on the Damascene reflow process: fabrication and loss origins
On-chip optical waveguides with low propagation losses and precisely engineered group velocity dispersion are important to nonlinear photonic devices such as soliton microcombs, and likewise can be
Nonlinear Group IV photonics based on silicon and germanium: from near-infrared to mid-infrared
Abstract Group IV photonics hold great potential for nonlinear applications in the near- and mid-infrared (IR) wavelength ranges, exhibiting strong nonlinearities in bulk materials, high index
Low loss SiGe graded index waveguides for mid-IR applications.
TLDR
The performances of those Mid-IR waveguides significantly exceed the state of the art, confirming the feasibility of using graded SiGe/Si devices in a wide range of wavelengths and representing a capital breakthrough to develop a photonic platform working in the Mid- IR range.
Ultra-high-Q toroid microcavity on a chip
TLDR
This work demonstrates a process for producing silica toroid-shaped microresonators-on-a-chip with Q factors in excess of 100 million using a combination of lithography, dry etching and a selective reflow process, representing an improvement of nearly four orders of magnitude over previous chip-based resonators.
...
1
2
3
4
5
...