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Chip-scale INtegrated Photonics for the mid-Infra REd

Objective

Mid-infrared (mid-IR) spectroscopy is a nearly universal way to identify chemical and biological substances, as most of the molecules have their vibrational and rotational resonances in the mid-IR wavelength range. Commercially available mid-IR systems are based on bulky and expensive equipment, while lots of efforts are now devoted to the reduction of their size down to chip-scale dimensions. The demonstration of mid-IR photonic circuits on silicon chips will benefit from reliable and high-volume fabrication to offer high performance, low cost, compact, low weight and power consumption photonic circuits, which is particularly interesting for mid-IR spectroscopic sensing systems that need to be portable and low cost.
In this context, the INsPIRE project will address a new route towards key advances in the development of chip-scale integrated circuits on silicon for the mid-IR wavelength range. The original idea is to use nonlinear optical properties in Ge/SiGe quantum well (QW) active devices combined with Ge-rich-SiGe waveguides. The objectives of the INsPIRE project are far beyond the state of the art, by targeting the monolithic integration of passive and active devices for operation in the 3 to 15 µm wavelength range.
As a main cornerstone we will demonstrate an optical photonic circuit based on Ge/SiGe QWs relying on a mid-IR light emitter combined with a mid-IR spectrometer and a detector array. The integration will be performed using Ge-rich-SiGe waveguides allowing the extension of the wavelength range up to 15 µm.
Such demonstration, which will constitute a breakthrough for establishing chip-scale circuits for the mid-IR photonics, requires a deep knowledge and understanding of Ge/SiGe optical properties. In particular, second- and third-order nonlinear optical properties of Ge/SiGe QW structures will be investigated in a wide spectral range from 3 to 15 µm.

Field of science

  • /natural sciences/chemical sciences/analytical chemistry/spectroscopy
  • /natural sciences/chemical sciences/inorganic chemistry/inorganic compounds

Call for proposal

ERC-2014-STG
See other projects for this call

Funding Scheme

ERC-STG - Starting Grant

Host institution

UNIVERSITE PARIS-SACLAY
Address
Immeuble Technologique Entree B Rte De L Orme Aux Merisiers
91190 Saint Aubin
France
Activity type
Higher or Secondary Education Establishments
EU contribution
€ 1 296 875

Beneficiaries (2)

UNIVERSITE PARIS-SACLAY
France
EU contribution
€ 1 296 875
Address
Immeuble Technologique Entree B Rte De L Orme Aux Merisiers
91190 Saint Aubin
Activity type
Higher or Secondary Education Establishments
POLITECNICO DI MILANO
Italy
EU contribution
€ 201 250
Address
Piazza Leonardo Da Vinci 32
20133 Milano
Activity type
Higher or Secondary Education Establishments