Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
The design of an adaptive optics telescope : the case of DAG
Download
index.pdf
Date
2016-07-01
Author
Jolissaint, Laurent
KESKİN, ONUR
Zago, Lorenzo
Yerli, Sinan Kaan
YEŞİLYAPRAK, Cahit
Mudry, Emeric
Lousberg, Gregory
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
175
views
0
downloads
Cite This
In this paper, we describe in detail the optical design of DAG, a new 4 m telescope for Turkey. DAG is an ”adaptive optics friendly” telescope, in a sense that each design decision is taken considering the potential impact on the AO performance (vibrations, static aberrations etc.) The objective is to make this telescope fully ready for AO at first light. It is designed as a Ritchey-Chr´etien combination, 56 m focal length, with Nasmyth foci only, and active optics. Its total RMS error is expected to be 45 nm up to Zernike mode 78, and 26 nm for the higher, non AO corrected modes. A final design optimization has been done by the telescope manufacturers, demonstrating that our AO-based requirements can be satisfied, without much difficulty.
Subject Keywords
DAG observatory
,
Ritchey-Chretien telescope
,
Adaptive optics
,
Active optics
URI
https://hdl.handle.net/11511/37128
DOI
https://doi.org/10.1117/12.2233297
Collections
Department of Physics, Conference / Seminar
Suggestions
OpenMETU
Core
Design of a derotator for the 4 in DAG telescope
Baudet, Jeremie; Jolissaint, Laurent; KESKİN, ONUR; YEŞİLYAPRAK, Cahit; Yerli, Sinan Kaan (2016-06-30)
This paper Silt our work on the design of a field derotator for the adaptive optics instruments platform of DAG (Dogu Anadolu Cozier vi), a new 4 in telescope for astronomical observations near the city of krzurum, l'urkey. While the telescopefollows an astronomical object, its pupil sees a rotation of the object around the optical axis which depends n the telescope geographic coordinate and the object sky coordinate. This effect is called the field rotation. This rotation needs to be compensated during the...
Fundamentals of a metal surface imaging system based on laser-optic principles
Bektaş, Murat; Altan, Hakan; Department of Physics (2009)
The confocal laser-scanning microscope (CLSM), known simply as a confocal microscope, is an important instrument which allows us to observe an object or a surface in three-dimensions with confocal microcopy technique. The basic difference of confocal microscopy is detecting the in- focused light, while the out of focus light is blocked out by the help of a pinhole. By this optical dissection ability of confocal microcopy, CLSM provides the images of investigated object or the surface with higher resolution ...
A Microwave Kinetic Inductance Detector for the DAG Telescope
GÜVER, Tolga; Mazin, Benjamin A.; O'Brien, Kieran; Kay, Burak; Alis, Sinan; Yelkenci, F. Korhan; YEŞİLYAPRAK, Cahit; Yerli, Sinan Kaan; Erol, Ayse; KESKİN, ONUR (2016-06-29)
We present the details of a proposed microwave kinetic inductance detector (MKID) for the DAG (Eastern Anatolia Observatory in Turkish) telescope, DAG-MKID. The observatory will have a modern 4m size telescope that is currently under construction. Current plan to obtain the first light with the telescope is late 2019. The proposed MKID based instrument will enable astronomers to simultaneously detect photons in the relatively wide wavelength range of 4000 - 13500 ˚A with a timing accuracy of µs and spectral...
Design and analysis of ultrashort femtosecond laser amplifiers
Doğan, Ersin; Bilikmen, Kadri Sinan; Department of Physics (2006)
This thesis presents a compact femtosecond laser amplifier design for optical preamplifiers and power amplifiers consist of theoretical perspective, simulations to analyze and optimize beam performance. The propagation through optical media is simulated for every optical component such as mirrors and nonlinear crystal separately and suggested realignment of these components required increasing amplifier performance. Finally Gaussian beam propagation and aberration compensation has been conducted.
Development of a compact time-domain terahertz spectrometer using photoconductive antenna detection method
Güngör Erözbek, Ümmügül; Altan, Hakan; Department of Physics (2009)
In this thesis, we describe the development of a time-domain terahertz (THz) spectrometer driven by two different laser sources: an Er-doped femtosecond fiber laser and a mode-locked Ti:Sapphire laser. The resulting THz electromagnetic radiation was generated and detected using photoconductive antenna detection methods in both systems. In these experiments we characterized the THz power output for both the fiber laser driven system and the Ti:Sapphire laser driven system. Emphasis is given throughout this t...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
L. Jolissaint et al., “The design of an adaptive optics telescope : the case of DAG,” 2016, vol. 9906, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/37128.