Aberration-corrected aspheric grating designs for the Lyman/Far-Ultraviolet Spectroscopic Explorer high-resolution spectrograph: a comparison

Catherine Trout; David Content; Pam Davila

doi:10.1364/AO.31.000943

Applied Optics
Vol. 31,
Issue 7,
pp. 943-948
(1992)
•https://doi.org/10.1364/AO.31.000943

Aberration-corrected aspheric grating designs for the Lyman/Far-Ultraviolet Spectroscopic Explorer high-resolution spectrograph: a comparison

Catherine Trout, David Content, and Pam Davila

Not Accessible

Your library or personal account may give you access

Get PDF
Email
Share
Get Citation
Copy Citation Text
Catherine Trout, David Content, and Pam Davila, "Aberration-corrected aspheric grating designs for the Lyman/Far-Ultraviolet Spectroscopic Explorer high-resolution spectrograph: a comparison," Appl. Opt. 31, 943-948 (1992)

Export Citation
- BibTex
- Endnote (RIS)
- HTML
- Plain Text
Citation alert
Save article

Abstract

Two approaches to reducing the optical aberrations of concave diffraction gratings have been studied to obtain candidate grating designs for the Lyman/Far-Ultraviolet Spectroscopic Explorer mission. The first approach involves shaping the grating substrate while using straight and equally spaced grooves. The second approach involves using a gating substrate with a relatively simple figure and holographically controlling the groove curvature and spacing. We analyze and compare specific designs derived from both approaches.

Full Article | PDF Article

More Like This

Aberration-corrected aspheric gratings for far-ultraviolet spectrographs: holographic approach

Pam Davila, David Content, and Catherine Trout
Appl. Opt. 31(7) 949-954 (1992)

Comparison of grating designs for the Lyman Far-Ultraviolet Spectroscopic Explorer spectrograph

Michel Duban
Appl. Opt. 32(22) 4253-4264 (1993)

Aberration corrected aspheric gratings for far ultraviolet spectrographs: conventional approach

David Content, Catherine Trout, Pam Davila, and Mark Wilson
Appl. Opt. 30(7) 801-806 (1991)

Previous Article Next Article

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 Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (2)

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

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (4)

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

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (9)

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

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Parameter	Value for Each Grating
Wavelength range (nm)	91.0–103.0
f/No.	10
Diameter of Rowland circle (mm)	1837.5
Groove length (mm)	157.2
Ruled width (mm)	184.6
Incidence angle α (deg)	34
Central β (deg)	0
Astigmatism correction (nm)	93.7, 100.3
Blaze angle (deg)	17
Grating coating	SiC

Parameter	Third Order a = b	Third Order a = c	Fourth Order a = b	Holographic a = c
Groove density (mm/groove)	5764.88	5764.88	5764.88	2882.22
Order k	1	1	1	2
Substrate shape	Deformed ellipsoid	Deformed ellipsoid	Deformed ellipsoid	Ellipsoid
a (mm)	1837.5	1523.08	1837.5	1523.08
b (mm)	1837.5	1672.92	1837.5	1673.92
c (mm)	1672.92	1523.08	1672.92	1523.08
∊₀ (10⁻⁸ mm⁻²)	1.128	1.128	1.128	0
∊₁ (10⁻¹² mm⁻³)	0	0	4.193	0
∊₂ (10⁻¹¹ mm⁻³)	0	0	1.238	0
∊₃ (10⁻¹² mm⁻³)	0	0	4.155	0

Design	Spectral Resolving Power
	Wavelength (nm)
	91.0	94.0	97.0	100.0	103.0
(a) Third order, a = b	26,100	27,300	28,500	29,100	29,400
(b) Third order, a = c	27,700	28,800	30,000	30,900	31,200
(c) Holographic, a = c	26,400	28,500	29,800	30,300	30,000
(d) Fourth order, a = b	27,700	29,100	30,100	31,200	31,400

Design	Spatial Resolution in Arcseconds (μrad)²
	Wavelength (nm)
	91.0	93.7	97.0	100.3	103.0
Third order, a = b	2.74	1.12	1.55	1.12	2.71
	(13.28)	(5.43)	(7.51)	(5.43)	(13.14)
Third order, a = c	2.94	1.10	1.49	1.10	2.95
	(14.25)	(5.33)	(7.22)	(5.33)	(14.30)
Holographic, a = c	2.67	1.13	1.46	1.14	2.65
	(12.94)	(5.48)	(7.08)	(5.53)	(12.85)
Fourth order, a = b	2.96	1.09	1.46	1.09	2.98
	(14.35)	(5.28)	(7.08)	(5.28)	(14.45)

Parameter	Value for Each Grating
Wavelength range (nm)	91.0–103.0
f/No.	10
Diameter of Rowland circle (mm)	1837.5
Groove length (mm)	157.2
Ruled width (mm)	184.6
Incidence angle α (deg)	34
Central β (deg)	0
Astigmatism correction (nm)	93.7, 100.3
Blaze angle (deg)	17
Grating coating	SiC

Abstract

Cited By

Figures (2)

Tables (4)

Equations (9)

Applied Optics