Grating resolution

September 29, 2021
Figure 93: Low resolution

A concept for a highly miniaturized spectrometer featuring a two-component design is presented. The first component is a planar chip that integrates an input slit and aberration-correcting diffraction grating with an image sensor and is fabricated using microelectromechanical systems (MEMS) technologies. Due to the fabrication in a simple MEMS batch process the essential elements of the spectrometer are automatically aligned, and a low fabrication cost per device can be achieved. The second component is a spherical mirror, which is the only external part. The optimized grating structure compensates for aberrations within the spectrometer operating range, resulting in a diffraction-limited performance of the spectrometer optics. The prototype of the device has been fabricated and characterized. It takes a volume of 0.5 cm3 and provides a FWHM spectral resolution of 0.7 nm over a 350 nm bandwidth from 420 nm to 770 nm combined with an etendue of 7.4×10−5 mm2 sr.

© 2008 Optical Society of America

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or

Equations (2)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Source: www.osapublishing.org
RELATED VIDEO
300mm x 300mm Heelguard Pattern Grate - Full Stainless
300mm x 300mm Heelguard Pattern Grate - Full Stainless ...
Laser abstract pattern through a diffraction grating
Laser abstract pattern through a diffraction grating
Mini moving head laser with Grating patterns(X-LASER)
Mini moving head laser with Grating patterns(X-LASER)
RELATED FACTS
Share this Post