Solo Spectroscopy chip design for calibration of space-based spectrometers

Date: 3rd February 2014

Eastbourne, United Kingdom:

Photonics West 2014 (San Francisco): Jo Coote, ZiNIR photonics design engineer will present Wednesday 5th February her work to design monolithic chip-based spectrometers for calibration of Earth Observation instruments in space as part of an EMRP (European Metrology Research Project) project.

EMRP Logo

Jo will present her paper, 'Design and simulation of a semiconductor chip-based visible NIR spectrometer for Earth observation', from 1:50pm 5th February at the Opto Conference on Integrated Optics: Devices, Materials, and Technologies XVIII (Sensors II).

Solid-state chip spectrometers that can be mass-produced are ideally suited to provide validation and calibration measurements of space-based hyperspectral imagers which in addition to spatial information provide unique spectroscopic signatures of pollutants, water, vegetation, algal plumes, minerals and more. This data needs to be validated by the real reflectance of the ground as measured on the ground and calibrated to understand the differences between measurements made by different satellites.

Solid-state chip spectrometers that can be mass-produced are ideally suited to provide validation and calibration measurements of space-based hyperspectral imagers which in addition to spatial information provide unique spectroscopic signatures of pollutants, water, vegetation, algal plumes, minerals and more. This data needs to be validated by the real reflectance of the ground as measured on the ground and calibrated to understand the differences between measurements made by different satellites.

Robust solid-state chip-based spectrometers can be widely dispersed across multiple environments: large uniform ground sites such as deserts as well non-uniform areas such as forests so that calibration and validation can more thoroughly match the footprint of satellite sensors.

In this talk Jo will focus on the materials identified for a number of wavelength ranges in the Visible and Near infrared regions together with the design of a spectrometer chip targeting 875nm.

A paper will be available from SPIE in the conference proceedings.