Stigmatic Spectrometers for Extended Sources: Design with Toroidal Varied-Line-Space Gratings
Applied Optics, Vol. 43, Issue 10, pp. 2029-2038 (2004)
http://dx.doi.org/10.1364/AO.43.002029
Acrobat PDF (133 KB)
Abstract
Performances are presented of three classes of imaging slit spectrometers for extended sources with aberration-corrected gratings. A general analytical expression for minimizing off-axis grating aberrations is obtained, and it is demonstrated that these aberrations are minimized when the spectrometer is operated at a magnification higher than unity. Classical designs with toroidal uniform-line-spaced (TULS) or spherical varied-line-space (SVLS) gratings are compared with a new class of designs that utilize toroidal varied-line-space (TVLS) gratings. Although TULS and SVLS designs with two stigmatic points can be designed to operate at near-unity magnification with excellent on-axis spectral and spatial resolutions, they cannot be made to satisfy the general off-axis condition, and so their off-axis performances are not optimum. On the contrary TVLS designs with two stigmatic points can be operated at almost any magnification, thus satisfying the off-axis condition perfectly. Such designs are suitable for imaging spectrometer observations that require an extended field of view.
© 2004 Optical Society of America
OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(080.1010) Geometric optics : Aberrations (global)
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(220.1000) Optical design and fabrication : Aberration compensation
Citation
Luca Poletto and Roger J. Thomas, "Stigmatic Spectrometers for Extended Sources: Design with Toroidal Varied-Line-Space Gratings," Appl. Opt. 43, 2029-2038 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-10-2029
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
Log in to access OSA Member Subscription
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
Log in to access OSA Member Subscription
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.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
Related Journal Articles 
- Off-Axis Pivot Mounting for Aberration-Corrected Concave Gratings at Normal Incidence (AO)
- Optimum Design of a Grazing-Incidence Flat-Field Spectrograph with a Spherical Varied-Line-Space Grating (AO)
- Comparison of Mechanically Ruled Versus Holographically Varied Line-Spacing Gratings for a Soft-X-Ray Flat-Field Spectrograph (AO)
- Design for an Aberration-Corrected Concave Grating for a Mid-Infrared Long-Slit Spectrometer (AO)
- Design of a High-Throughput Grazing-Incidence Flat-Field Spectrometer (AO)
Related Conference Papers
« Previous Article | Next Article »
OSA is a member of 