Zobrazeno 1 - 10
of 197
pro vyhledávání: '"C. L. Nagendra"'
Publikováno v:
Sadhana. 34:625-631
Communication systems such as those used on satellite platforms demand high performance from individual components that make up the various systems and sub-systems. Switching and routing of RF signals between various modules is a routine and critical
Publikováno v:
Sensors and Actuators A: Physical. 153:69-75
Experimental studies on preparation of thin films of ternary compositions of Mn3O4, NiO and CoO using ion beam sputtering technique and electrical properties characterization have been carried out. The compatibility of thin films deposited on thermal
Autor:
Satraj Singh, V. C. Ravi, C. L. Nagendra, M. V. Hanumantha Rao, R. Venkateswaran, Paromita Chakraborty, K. V. Sriram, Nikhil Mahale
Publikováno v:
Scopus-Elsevier
High accuracy surface figuring of light-weighted aspherical optical mirrors using conventional polishingtechniques becomes increasingly difficult with size as problems such as tool footprint, edge turndown become severe. Hence, a non-contact polishin
Autor:
R. Islam, M P Srikanth, Ashwini Jambhalikar, Ananda Behera, M. S. Giridhar, C. L. Nagendra, J. John, B H M Darukesha, Shailesh Somani, George Thachil, Srinivasarao Bollu
Publikováno v:
Sadhana.
RF characterization and packaging of a single pole single throw (SPST) direct contact microelectromechanical (MEMS) series radio frequency (RF) switch is reported. Precise thickness of the silicon MEMS structure is achieved using a specially develope
Autor:
James L. Lamb, C. L. Nagendra
Publikováno v:
Journal of Applied Physics. 76:7195-7200
Theoretical/experimental studies have been carried out on germanium:silver (Ge:Ag) graded-index composite thin films which demonstrate that graded coatings, consisting of varied concentrations of Ag with respect to the Ge film thickness, exhibit diff
Autor:
G. K. M. Thutupalli, C. L. Nagendra
Publikováno v:
Applied optics. 27(11)
A generalized theoretical formulation for multilayer antireflection coatings (ARCs) has been established, which has scope for considering both zero and nonzero reflectance at one or more than one wavelength. Starting with this, a new design method fo
Autor:
C. L. Nagendra, G. K. M. Thutupalli
Publikováno v:
Applied optics. 20(15)
A detailed study of a new method of determining the optical properties of absorbing materials is presented. It makes use of normal incidence reflectances from the specimen itself (R(s)) and from the specimen coated with a transparent film of two diff
Publikováno v:
Applied optics. 44(29)
Silicon oxynitride thin films are prepared by ion-beam sputtering, and the optical properties and surface chemical composition are studied by spectrophotometric and x-ray photoelectron spectroscopy, respectively. It is seen that the films sputtered b
Autor:
A. Sreekumaran Nair, C. L. Nagendra, Thalappil Pradeep, Renjis T. Tom, Navinder Singh, K. Vijayamohanan, Reji Philip, M. Aslam
Publikováno v:
IndraStra Global.
We report a one-step route for the synthesis of Au@TiO2, Au@ZrO2, Ag@TiO2, and Ag@ZrO2 particles in nanometer dimensions, with controllable shell thickness. This scalable procedure leads to stable and freely dispersible particles, and bulk nanocompos
Publikováno v:
Reflective and Refractive Optical Materials for Earth and Space Applications.
Multilayer stacks of optical filters for spaceborne electrooptical imaging employ a staggered edge filter and a matching antireflection stack, in order to achieve the requisite passband characteristics and eliminate unwanted sideband transmission thr