Transmitted diffraction grating utilizing high diffraction order for a spectrometer

Do Kyun Woo; Kazuhiro Hane; Sun Kyu Lee

Transmitted diffraction grating utilizing high diffraction order for a spectrometer

Do Kyun Woo, Kazuhiro Hane, Sun Kyu Lee

ENG - Finemechanics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We propose a transmitted diffraction grating utilizing high diffraction order, which is useful for a spectrometer. In this paper, this grating is designed, fabricated and measured. This transmitted diffraction grating was designed as a shape of a triangular-groove consisting of reflective and refractive surface, not two refractive surfaces. The replica of this grating can be fabricated through hot-embossing process using a triangular-groove mould. Finally, this grating consisting of reflective and refractive surfaces can be obtained using shadowing effect in thermal evaporation process, which can help to coat metal on only one surface, not the other surface. Since each groove in this grating consists of reflective surface at one side and refractive surface at the other side, there are two high diffraction orders. Using the period of 3 μm and the thickness of 2.119 μm in visible wavelength, a -4th and -10th diffraction order occur. Considering the high diffraction order can provide high resolving power in a spectrometer, this grating is very applicable to a compact and slim spectrometer.

Original language	English
Title of host publication	Proceedings of the 9th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2009
Publisher	euspen
Pages	50-53
Number of pages	4
Volume	2
ISBN (Electronic)	9780955308260
Publication status	Published - 2009 Jan 1
Event	9th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2009 - San Sebastian, Spain Duration: 2009 Jun 2 → 2009 Jun 5

Other

Other	9th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2009
Country/Territory	Spain
City	San Sebastian
Period	09/6/2 → 09/6/5

ASJC Scopus subject areas

Industrial and Manufacturing Engineering
Instrumentation
Mechanical Engineering
Materials Science(all)
Environmental Engineering

Cite this

Transmitted diffraction grating utilizing high diffraction order for a spectrometer. / Woo, Do Kyun; Hane, Kazuhiro; Lee, Sun Kyu.
Proceedings of the 9th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2009. Vol. 2 euspen, 2009. p. 50-53.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Woo, DK, Hane, K & Lee, SK 2009, Transmitted diffraction grating utilizing high diffraction order for a spectrometer. in Proceedings of the 9th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2009. vol. 2, euspen, pp. 50-53, 9th International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2009, San Sebastian, Spain, 09/6/2.

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AB - We propose a transmitted diffraction grating utilizing high diffraction order, which is useful for a spectrometer. In this paper, this grating is designed, fabricated and measured. This transmitted diffraction grating was designed as a shape of a triangular-groove consisting of reflective and refractive surface, not two refractive surfaces. The replica of this grating can be fabricated through hot-embossing process using a triangular-groove mould. Finally, this grating consisting of reflective and refractive surfaces can be obtained using shadowing effect in thermal evaporation process, which can help to coat metal on only one surface, not the other surface. Since each groove in this grating consists of reflective surface at one side and refractive surface at the other side, there are two high diffraction orders. Using the period of 3 μm and the thickness of 2.119 μm in visible wavelength, a -4th and -10th diffraction order occur. Considering the high diffraction order can provide high resolving power in a spectrometer, this grating is very applicable to a compact and slim spectrometer.

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ER -

Transmitted diffraction grating utilizing high diffraction order for a spectrometer

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ASJC Scopus subject areas

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