Sid Senadheera

All research done from 2008-2010 [written as manuscripts]

* Magnetic Field Controlled Nanofiber Generation http://sidath.senadheera.net/Magnetization-paper.pdf

* http://sidath.senadheera.net/physics.problem.pdf "Analysis of quantization in nanoparticles produced by femtosecond laser ablation."

-- Parts of the above manuscript, are being published in a book - "Perspectives of Engineering Physics" by ACME learning Publishers, New Delhi, India.

* From a talk (linked) : A four-Nanoparticle system that can emulate any circuit, with 1/1000000000 the original size and increase it's speed by 1000X to 100,000 X ..... http://sidath.senadheera.net/4-NP-loop-b.pdf

* Ananlysis of transmission current by Quantum Tunelling (Part -1): http://sidath.senadheera.net/3D-Tunneling.pdf

* Ananlysis of transmission current by Quantum Tunelling (Part -2) : http://sidath.senadheera.net/Transmission-of-current.pdf

*Critical Time to Nucleation: Graphite and Silicon Nanoparticle Generation by Laser Ablation http://sidath.senadheera.net/RZ-theory..pdf

*Pulse shaping effects on nanoparticle generation http://sidath.senadheera.net/dpulse-draft.pdf

*Shielding nano-devices from unwanted electromagnetic radiation by using 3-D nanofiber structure http://sidath.senadheera.net/EMI.pdf

Related - Quantum tunneling analysis of transmission of a current.. http://sidath.senadheera.net/3D-Tunneling.pdf

*Emission-enhancement of Al and Si nanofibers using dual pulses with varying wavelengths http://sidath.senadheera.net/double-pulse-opexstyle_.pdf

*Nanoparticles emission direction control - using magnetic fields and polarization http://sidath.senadheera.net/Magnetic-Polarization(original-document).pdf

* Electro-mechanical properties of Carbon Nanotubes - REVIEW PAPER [~ 40 pages] http://sidath.senadheera.net/CNT.pdf

*Size variation due to changing pulse frequencies and pulse-widths on Silicon fractal aggregates : http://sidath.senadheera.net/Size_variations_in_nanoparticles-1.pdf

*Publication on SIS Mixers working on fundamentals of Quantum Electronics

Simple 1mm receivers with fixed tuned double sideband SIS mixer and wideband InP MMIC amplifier

Designed & fabricated at UC Berkeley & CARMA at California Institute of Technology, Pasadena CA.

** I am not an author in this paper although I have worked on projects at CARMA, BIMA, OVRO, JPL in this field

ABSTRACT : The Berkeley-Illinois-Maryland Array (BIMA) and the Caltech Owens Valley Radio Observatory Array telescopes will merge to form the Combined Array for Research in Millimeter-Wave Astronomy (CARMA) in 2005. Each element of the new telescope1 will be equipped with a cooled 1 mm receiver consisting of a Superconductor-Insulator-Superconductor (SIS) mixer with Intermediate Frequency (IF) postamplifier. Downconverted signals from each element will be processed by a correlator with a total bandwidth of 4 GHz. Whereas the current OVRO 1 mm receivers2 cover a 4 GHz IF band, from 1 - 5 GHz , the present BIMA receivers use IF postamplifiers which cover only 1.4 – 2.2 GHz (L band). Before integrating BIMA instrumentation with CARMA, receiver IF bandwidths must be expanded to at least the CARMA correlator bandwidth. The resulting wide instrumental bandwidth will greatly facilitate the study of molecular transitions and continuum radiation. This paper describes our progress towards building wideband receivers by combining existing 1 mm SIS mixer chips developed for BIMA with 0.5 – 11 GHz MMIC amplifiers developed for the Allen Telescope Array.

Some technical pictures from Caltech (link)