Methane Sensing Immersion Grating Spectrometer

Metadata Updated: February 28, 2019

Develop long-wave infrared (LWIR) immersion grating fabrication techniques and mature high resolution LWIR spectrometer technology to demonstrate an imaging spectrometer testbed for remote sensing of methane.[HTML_REMOVED]Our objective is to develop an imaging spectrometer testbed for remote sensing of the trace gas methane. The testbed will demonstrate compact spectrometer optical designs that will be enabled by using immersion gratings fabricated from silicon or germanium. Such designs are significantly more compact than non-immersion designs because the grating refractive index reduces the wavelength inside the material, leading to reduced grating groove spacing and thus reduced grating area to achieve a desired spectral resolution. The gratings will be fabricated by several techniques and evaluated to determine which material and fabrication technique yields the best system performance for this application. The testbed will capture methane emission spectra in the long-wave infrared (7.65 [HTML_REMOVED]m wavelength region) and will allow JPL to build on its existing techniques and algorithms for analyzing methane emission spectra in the long-wave infrared.[HTML_REMOVED]

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Public: This dataset is intended for public access and use. License: U.S. Government Work

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Dates

Metadata Created Date February 28, 2019
Metadata Updated Date February 28, 2019

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date February 28, 2019
Metadata Updated Date February 28, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_92720
Maintainer
TECHPORT SUPPORT
Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 825a729c-64d4-45d1-90b3-6b6681898644
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2018-09-01
Homepage URL https://techport.nasa.gov/view/92720
License http://www.usa.gov/publicdomain/label/1.0/
Data Last Modified 2018-09-05
Program Code 026:027
Source Datajson Identifier True
Source Hash ff83113f0e3c10cd25e3fbe84463cee051001325
Source Schema Version 1.1

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