Ms. Uma K. Subash Profile

Uma K. Subash

SPIE Involvement:

Author

Publications (7)

Proceedings Article | 26 August 2024 Presentation + Paper

On-sky evaluation of AWACS-Duo (dual-unit arrayed wide-angle camera system)

Hanshin Lee, Brian Vattiat, Uma Subash, Menelaos Poutous

Proceedings Volume 13100, 131001G (2024) https://doi.org/10.1117/12.3020322

KEYWORDS: Telescopes, Analog to digital converters, Design, Relays, Prisms, Image quality, Imaging systems, Cameras, Point spread functions, Optical transmission

Read Abstract +

Proceedings Article | 26 August 2024 Presentation + Paper

Evaluation of area scaling of the reactive ion-plasma etched astronomical diffraction gratings

Hanshin Lee, Uma Subash, Menelaos Poutous

Proceedings Volume 13100, 131001V (2024) https://doi.org/10.1117/12.3020302

KEYWORDS: Etching, Diffraction gratings, Optical gratings, Fabrication, Chromium, Astronomy, Diffraction, Vacuum chambers, Spectrographs, Reactive ion etching

Read Abstract +

SPIE Journal Paper | 16 May 2024 Open Access

High-efficiency anti-reflective modification of freeform elements and cylindrical lenses for arrayed wide-field astronomical corrector units

Uma Subash, Hanshin Lee, Menelaos K. Poutous

JATIS, Vol. 10, Issue 02, 025007, (May 2024) https://doi.org/10.1117/12.10.1117/1.JATIS.10.2.025007

KEYWORDS: Wavefronts, Optical transmission, Lenses, Cylindrical lenses, Etching, Imaging systems, Relays, Optical surfaces, Fabrication, Astronomy

Read Abstract +

DOWNLOAD PAPER

Proceedings Article | 12 March 2024 Presentation + Paper

Dynamic polarization and mechanical tuning of slanted wire diffraction gratings

V. Paige Stinson, Uma Subash, Nuren Shuchi, Menelaos Poutous, Tino Hofmann

Proceedings Volume 12899, 1289902 (2024) https://doi.org/10.1117/12.3003380

KEYWORDS: Polarization, Diffraction gratings, Optical gratings, Polarization gratings, Fabrication, Two photon polymerization, Diffraction, Solid modeling, Polymer optics, Optical design

Read Abstract +

Proceedings Article | 4 October 2023 Presentation + Paper

UV to IR high-efficiency antireflective surface modification of freeform and cylindrical lenses for space platform optical instrumentation

Uma Subash, Hanshin Lee, Menelaos Poutous

Proceedings Volume 12676, 126760H (2023) https://doi.org/10.1117/12.2675746

KEYWORDS: Optical surfaces, Etching, Optical transmission, Fabrication, Cylindrical lenses, Wavefronts, Lenses, Thin film coatings, Reactive ion etching, Nanostructures

Read Abstract +

Proceedings Article | 29 August 2022 Presentation + Paper

Fabrication and evaluation of reactive ion-plasma etched astronomical diffraction grating with anti-reflective surface nanostructures

Hanshin Lee, Uma Subash, Menelaos K. Poutous

Proceedings Volume 12188, 1218826 (2022) https://doi.org/10.1117/12.2627342

KEYWORDS: Diffraction gratings, Etching, Astronomy, Diffraction, Spectrographs, Sensors, Quartz, Plasma etching, Optical design, Nanolithography

Read Abstract +

Proceedings Article | 29 August 2022 Poster + Paper

Integration/test of dual unit arrayed wide-angle camera system and its evaluation in the context of Extremely Large Telescopes

Hanshin Lee, Brian Vattiat, Uma Subash, Menelaos Poutous

Proceedings Volume 12184, 121848E (2022) https://doi.org/10.1117/12.2627344

KEYWORDS: Telescopes, Relays, Prisms, Cameras, Monochromatic aberrations, Optical instrument design, Lenses, Imaging systems, Large telescopes, Interfaces

Read Abstract +

Showing 5 of 7 publications

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years