An Engineering Guide To Photoinjectors
... electron beams have been an active field of research. Breakthroughs in this field have led to applications as
far reaching as cancer treatment, investigation of nanoscale material and dark matter. In this book, we
present a snapshot of the photoinjector technology which has contributed to these adva ...
chapter i - Sacramento - California State University
... The objective of this thesis is to design, simulate and fabricate a dielectric resonator
band-pass filter to operate at a center frequency of 1.905 GHz with a narrow bandwidth
of 8.0 MHz and 60 dB rejection ± 1 MHz from the pass-band edge. In this thesis, I will
be designing this band-pass filter wi ...
Heterogeneously integrated III-V on silicon microlasers based on
... met de fiets door Nederland op zoek naar het pittoreske Lelystad. Enfin, compagnon de route first class dus.
En over het einde van de gang rechts en Nederland gesproken. Tegenover Peter De Heyn zat Thijs Spuesens. Thijs Spuesens is altijd goed gezind. Maar dat is
c-band linac for a race track microtron. - E
... The main function of a particle accelerator is to supply energy to charged particles, and this
energy is provided in most of the cases, except direct current and induction accelerators, by
means of resonant cavities. These accelerating cavities or accelerating structures consist
basically of one or ...
Electromagnetic properties of single-walled carbon
... et Mesures (CGPM) in 1960 as SI prefix for a billionth (10−9 ) of a quantity, indicating
very small dimensions in space (nanometer, nm, 10−9 m), time (nanosecond, ns, 10−9 s),
and other quantities.
Nanotechnology is often considered as being a new topic of science. However, it
is rather a multidisci ...
Investigation of the longitudinal charge distribution of electron
... Figure 1.1: Peak brilliance of various synchrotron radiation
sources compared with the SASE FELs.
ation. The light is reflected with mirrors, so that each
electron bunch interacts with the light pulse, generated by
the previous electron bunch, and produces photons with
the same wavelength. This prin ...
and long-range interactions: Rydberg-dressed spin lattice
... lattice to freeze out the motion of the atoms is a natural experimental set-up, which will allow
non-destructive detection of purely magnetic correlations via the cavity output spectrum [3,
4, 28]. Let us note that the question of how quantum light interacts with a self-interacting
set of qubits is ...
The Plasma Magnet - NASA`s Institute for Advanced Concepts
... It is highly unlikely that the higher speeds needed for outer planetary, manned planetary, or
interstellar missions can be achieved from thrust provided by onboard power and propellant
using conventional electric propulsion systems. Certainly, the power requirements are very
much larger than can be ...
Squeezed Light and Laser Interferometric
... recycling and signal recycling have been developed. These techniques increase the laser power in
the interferometer arms and amplify the GW induced signal sidebands respectively, to increase
the shot noise limited sensitivity even further. In 1981 Caves proposed using squeezed light to
reduce the va ...
Advanced Concepts of Electromagnetic Generation, Confinement
... ambitious missions, whilst requiring relatively higher transfer times. On the other
hand these engines demand for less propellant mass, thanks to the higher specific
impulse they afford. Nevertheless, they need a larger power amount in contrast
to chemical thrusters, which may be attained through so ...
characterizing single atom dipole traps for
... my graduate study in Georgia Institute of Technology. To begin with, I would like to
thank my advisor, Professor Michael Chapman, for giving me the opportunity to study
the interaction between light and matter at Georgia Tech. Throughout my graduate
career, I have greatly benefited from his experien ...
Quantum electrodynamics with 1D artificial atoms
... orientaitions, which qualifies the system as a candidate for a 1D atom. One of the signatures and
functions of a 1D atom is the nonlinear optical response at the single-photon level. A PCW chip is
designed to experimentally study the transmission spectrum of an embedded QD. The transmission
Method for analyzing EÃB probe spectra from Hall thruster plumes
... consist of singly charged xenon 共Xe+兲,1–3 knowledge of the
ion species’ population is necessary to understand the competing processes affecting overall efficiency.4,5 This population is typically measured using an E ⫻ B probe, which acts
as an ion velocity filter. Since ion velocities in the plume a ...
Whispering-gallery mode resonators for nonlinear and quantum
... processes such as second harmonic generation (SHG) [11–18], optical parametric oscillation (OPO) [19–25], and four-wave mixing (FWM) [26–28]. PSR has been used
to generated squeezed vacuum states [29–31], however this is restricted to the wavelengths corresponding to Rb transitions. OPO and FWM have ...
Momentum of Light in a Dielectric Medium
... first to understand that the force must be a more complicated consequence of heating
than radiation pressure . Indeed in further experiments following the construction
of his eponymous radiometer, Crookes found that it was the blackened sides of the
vanes of the radiometer and not the silvered on ...
Cavity Quantum Electrodynamics with Ion Coulomb Crystals
... joined as a PhD-student and has since taken over from me with great enthusiasm and
skill. It is indeed a privilege, both to be part of such a team but also to be leaving a
project knowing it is in the best hands possible.
During the past four years I and the project have benefited from the collabora ...
Semi-analytical model of ionization oscillations in Hall thrusters
... Recently, there has been concern of a link between ionization oscillations and enhanced wall erosion in
Hall thrusters 2 . These ionization oscillations can be observed both experimentally', and numerically5
and have been accepted within magnetized thrusters for a few decades. Much work has been
The study of electromagnetic wave propagation in photonic crystals
... photon or electromagnetic wave as crystal to electrons. Can you image it that it is not until
1987, more than 100 years after Maxwell’s Equation, that the concept of photonic crystal was
introduced by Eli Yablonovitch6 and Sajeev John7? And it is only after three years for the
concept to be finally ...
RF resonant cavity thruster
An RF resonant cavity thruster is a proposed new type of electromagnetic thruster. Unlike conventional electromagnetic thrusters, they are designed to use no reaction mass, and to emit no directional radiation. Their design principles seem to be not scientific, because they violate the fundamental law of momentum conservation.A few variations on such thrusters have been proposed. Aerospace engineer Roger Shawyer designed the EmDrive in 2001, and has persistently promoted the idea since then through his company, Satellite Propulsion Research.Chemical engineer Guido Fetta designed the Cannae Drive, based on similar principles. If they were found to work as claimed, providing thrust without consuming a propellant would have important applications to all areas of propulsion, from spacecraft to other vehicles.A few independent teams of physicists, notably a team at Xi'an's Northwestern Polytechnical University (NWPU), one at NASA's Eagleworks laboratories, and another at the Dresden University of Technology in Germany, have built prototypes of these designs. Some of their tests have tentatively observed a small net thrust from those prototypes. A small thrust has also been observed in devices deliberately built to not produce thrust. This experimental work has been published in university journals, conference proceedings, and some local Chinese peer-reviewed journals. Research is in progress to see if these effects are caused by some as-yet-unknown phenomenon, or artifacts due to experimental error, particularly because the observed results are small, and there are otherwise no compelling explanations for the apparent violation of the law of conservation of momentum. Claims of such a surprising result would need especially thorough efforts to rule out sources of error.