4 citations · 6 across the 6 of their papers we have counts for
6 papers
Site selection for the 3.4m optical telescope of the Iranian National Observatory
Sadollah Nasiria, Ahmad Darudi, Habib G. Khosroshahi +1
The Results of the site selection campaign conducted for the proposed 3.4m optical telescope of the Iranian National Observatory are reported. During the first 3 years, among 33 no…
On the colour of the dark side of the Moon
Peter Thejll, Chris Flynn, Hans Gleisner +5
Aims. 'Earthshine' is the dim light seen on the otherwise dark side of the Moon, particularly when it is close to new. 'Earthlight', or reflected sunlight from the Earth, is the so…
One dimensional surface profilometry by analyzing the Fresnel diffraction pattern from a step
Soghra Osanloo, Ahmad Darudi
When a coherent quasi-monochromatic light is reflected from a step, a diffraction pattern is formed that can be described by Fresnel-Kirchhoff integral and visibility of the fringe…
A Sub Pixel Resolution Method
Siamak Khademi, Ahmad Darudi, Zahra Abbasi
One of the main limitations for the resolution of optical instruments is the size of the sensor's pixels. In this paper we introduce a new sub pixel resolution algorithm to enhance…
Measurement of the atmospheric primary aberrations by 4-aperture DIMM
Ramin Shomali, Sadollah Nasiri, Ahmad Darudi
The present paper investigates and discusses the ability of the Hartmann test with 4-aperture DIMM to measure the atmospheric primary aberrations which, in turn, can be used for ca…
A Method for Increasing the Resolution of Optical Detectors
S. Khademi, A. Darudi, M. Shahsavari
In addition to the optical aberrations, the magnitude of the optical cells of detectors is one of the most important parameters, which restricts the resolution of detectors. Adapti…