Physics

MEMS and Nanotechnology-based Sensors and Devices for by A. R. Jha

By A. R. Jha

The combination of microelectromechanical platforms (MEMS) and nanotechnology (NT) in sensors and units considerably reduces their weight, measurement, energy intake, and construction charges. those sensors and units can then play larger roles in security operations, instant communique, the prognosis and remedy of ailment, and lots of extra purposes.

MEMS and Nanotechnology-Based Sensors and units for Communications, scientific and Aerospace functions offers the most recent functionality parameters and experimental information of state of the art sensors and units. It describes packaging information, fabrics and their homes, and fabrication requisites very important for layout, improvement, and trying out. a number of the state of the art fabrics lined comprise quantum dots, nanoparticles, photonic crystals, and carbon nanotubes (CNTs).

This accomplished paintings encompasses numerous kinds of MEMS- and NT-based sensors and units, comparable to micropumps, accelerometers, photonic bandgap units, acoustic sensors, CNT-based transistors, photovoltaic cells, and shrewdpermanent sensors. It additionally discusses how those sensors and units are utilized in a couple of purposes, together with guns’ future health, battlefield tracking, melanoma study, stealth know-how, chemical detection, and drug supply.

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Elements de Mécanique quantique - Tome 1

I Les origines de l. a. Th´eorie quantique
I. 1. Les ideas de los angeles body classique
(I. 1. 1) constitution corpusculaire de los angeles mati`ere
(I. 1. 2) Nature ondulatoire de los angeles lumi`ere
(I. 1. three) Le d´eterminisme de l. a. body classique
I. 2. Ondes ´electromagn´etiques et quanta de lumi`ere
I. three. l. a. nature ondulatoire de los angeles mati`ere
(I. three. 1) Les spectres de raies et les ondes de Louis de Broglie
(I. three. 2) Description quantique d’une particule libre : le paquet d’ondes
I. four. Dualit´e onde-corpuscule de l. a. lumi`ere et de l. a. mati`ere
I. five. Exercices sur les bases exp´erimentales de los angeles m´ecanique quantique
II Syst`emes quantiques simples
II. 1. Etat quantique d’une particule libre
(II. 1. 1) Fonction d’onde
(II. 1. 2) Courant de probabilit´e
(II. 1. three) Valeur moyenne et ´ecart quadratique moyen
(II. 1. four) Op´erateur “impulsion” dans l’espace des coordonn´ees
II. 2. Particule dans un potentiel ind´ependant du temps
(II. 2. 1) recommendations stationnaires
(II. 2. 2) Quantification de l’´energie
II. three. los angeles barri`ere de potentiel finie : l’effet tunnel
II. four. Le puits quantique
II. five. L’oscillateur harmonique
(II. five. 1) M´ethode de r´esolution polynˆomiale
(II. five. 2) M´ethode des op´erateurs de cr´eation et de destruction
II. 6. Appendice : Fonction g´en´eratrice des polynˆomes d’Hermite et oscillateur harmonique
(II. 6. 1) Orthonormalit´e des fonctions 'n(x) de l’oscillateur harmonique
(II. 6. 2) Valeurs moyennes et probabilit´e de transition
III Fondements de los angeles th´eorie quantique
III. 1. Equation de Schr¨odinger et ses propri´et´es
(III. 1. 1) Spectre de l’op´erateur hamiltonien et aspect de vue du calcul vectoriel
(III. 1. 2) Le vecteur d’´etat de l’espace d’Hilbert E et ses propri´et´es
(III. 1. three) Repr´esentation des coordonn´ees |ri
(III. 1. four) Repr´esentation des impulsions |pi
(III. 1. five) formula matricielle : Repr´esentation des ´etats d’´energie
(III. 1. 6) D´eg´en´erescence d’un niveau d’´energie
III. 2. constitution de l’espace de Hilbert "H et produits tensoriels d’espaces
III. three. Le processus de mesure et sa description quantique
(III. three. 1) Commutateurs et grandeurs physiques simultan´ement mesurables
(III. three. 2) Grandeurs physiques non simultan´ement mesurables : G´en´eralisation des family members d’incertitude
de Heisenberg
III. four. L’´equation d’´evolution
III. five. Les diff´erents sch´emas en m´ecanique quantique
(III. five. 1) Le sch´ema de Schr¨odinger
(III. five. 2) Le sch´ema de Heisenberg
(III. five. three) Le sch´ema d’interaction
III. 6. L’op´erateur de densit´e
III. 7. Int´egrale premi`ere et sym´etrie
(III. 7. 1) Observables compatibles et constantes du mouvement
(III. 7. 2) Sym´etrie et constante du mouvement
(III. 7. three) G´en´erateur d’une transformation de sym´etrie
(III. 7. four) Sym´etrie de translation
III. eight. Sym´etrie par rapport aux diversifications de particules identiques, les “bosons” et les “fermions”
III. nine. M´ethodes d’approximation pour l. a. r´esolution de l’´equation de Schr¨odinger
(III. nine. 1) Th´eorie de perturbation
(III. nine. 2) M´ethode variationnelle lin´eaire
III. 10. Conclusions : Postulats de l. a. body quantique
III. eleven. Appendice : Le cadre math´ematique de l’espace de Hilbert "H
IV Les moments angulaires en th´eorie quantique
IV. 1. Fonctions propres et valeurs propres du second cin´etique orbital : M´ethode polynˆomiale
IV. 2. Sym´etrie de rotation et second angulaire
IV. three. M´ethode alg´ebrique : Les op´erateurs d’´echelle
IV. four. Repr´esentation matricielle des op´erateurs du second angulaire
IV. five. Le spin d’une particule
(IV. five. 1) Le second magn´etique de l’´electron
(IV. five. 2) Exp´erience de Stern et Gerlach
(IV. five. three) Vecteur d’´etat et op´erateur de spin
(IV. five. four) Pr´ecession du spin dans un champ magn´etique
(IV. five. five) Composition de deux moments angulaires
IV. 6. Appendice : Fonctions sp´eciales associ´ees au second angulaire
(IV. 6. 1) Polynˆomes de Legendre
(IV. 6. 2) Les harmoniques sph´eriques
V Particules dans un champ de strength central
V. 1. Le probl`eme de deux particules en th´eorie quantique
(V. 1. 1) Potentiel `a sym´etrie sph´erique
(V. 1. 2) Vibrations et rotations d’une mol´ecule
V. 2. L’atome hydrog´eno¨ıde
(V. 2. 1) Fonction d’onde totale et ses propri´et´es
V. three. constitution wonderful des atomes alcalins
(V. three. 1) Interactions spin-orbite
(V. three. 2) Corrections relativistes
V. four. Effet de Zeeman des atomes alcalins
(V. four. 1) Atome plac´e dans un champ magn´etique quelconque
(V. four. 2) Effet Zeeman anomal
(V. four. three) Effet Paschen-Back
V. five. Etats quantiques de los angeles mol´ecule diatomique
V. 6. Appendice : Propri´et´es des fonctions sp´eciales de l’atome hydrog´eno¨ıde
(V. 6. 1) Les polynˆomes de Laguerre associ´es
VI Transitions entre ´etats stationnaires
VI. 1. Mouvement d’une particule charg´ee soumise `a un champ ´electromagn´etique
(VI. 1. 1) Le hamiltonien du syst`eme
(VI. 1. 2) motion d’un champ magn´etique constant
(VI. 1. three) Invariance de jauge
VI. 2. Perturbations non stationnaires
(VI. 2. 1) R`egle d’or de Fermi
VI. three. Le rayonnement dipolaire
VI. four. Corrections multipolaires
VI. five. Expression quantique des coefficients d’Einstein
VI. 6. Coefficients d’absorption
VI. 7. R`egles de s´election et le spectre optique d’atome `a un ´electron
(VI. 7. 1) Les r`egles de s´election d’un oscillateur harmonique et d’un atome hydrog´eno¨ıde r´ealiste
VII advent `a los angeles th´eorie quantique non-relativiste des syst`emes
de particules identiques
VII. 1. Le formalisme g´en´eral
VII. 2. software `a l’atome d’h´elium
(VII. 2. 1) interplay d’´echange et magn´etisme
VII. three. L’approximation du champ self-consistant de Hartree et de Hartree-Fock
VIII advent `a l. a. th´eorie quantique de los angeles diffusion par un
potentiel
VIII. 1. part efficace de diffusion
(VIII. 1. 1) part efficace diff´erentielle dans le syst`eme du laboratoire
(VIII. 1. 2) Interpr´etation classique et loi de Rutherford
VIII. 2. Traitement stationnaire
(VIII. 2. 1) Equation int´egrale de l. a. diffusion et resolution “approch´ee” : “Approximation de Born”
(VIII. 2. 2) Le r`egle d’Or de Fermi et l’approximation de Born
(VIII. 2. three) M´ethode des ondes partielles
Livres de r´ef´erence
– J. L. Basdevant, M´ecanique quantique, ellipses, 1986.
– J. Hladik, M´ecanique quantique, ´editions Masson, Paris, 1997.
Bibliographie
– D. Blokintsev, Principes de m´ecanique quantique, ´editions Mir, Moscou, 1981.
– J. M. L´evy-Leblond, F. Balibar, Quantique. Rudiments, Inter-Editions, Paris, 1984.
– Cl. Cohen-Tannoudji, B. Diu, F. Lalo¨e, M´ecanique quantique, tomes I & II, Hermann, 1980.
– E. Merzbacher, Quantum Mechanics, John Wiley, third ed. , 1998.
– S. Gasiorowicz, Quantum Physics, John Wiley, 1997.
– L. D. Landau, E. M. Lifshitz, Quantum Mechanics, Pergamon Press, third ed. , 1981.
– V. okay. Thankappan, Quantum Mechanics, John Wiley, 2d ed. , 1993.
– A. B. Wolbarst, Symmetry and Quantum Mechanics, Van Nostrand Reinhold Comp. , 1977.
– W. Louisell, Radiation and noise in Quantum Electronics, McGraw-Hill, 1964.
– A. Z. Capri, Nonrelativistic Quantum Mechanics, Benjamin/Cummings, 1985.
– J. J. Sakurai, smooth Quantum Mechanics, Benjamin/Cummings, 1985.
– W. Greiner, B. M¨uller, Quantum Mechanics, vol. I & II, Hermann, 1980.
– T. Fliessbach, Quantenmechanik, Spektrum Akademischer Verlag, 1995.
– R. W. Robinett, Quantum Mechanics, Oxford college Press, 1997.

Extra info for MEMS and Nanotechnology-based Sensors and Devices for Communications Medical and Aerospace Appli

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Micrometallic-closed cellular materials are considered the smartest materials because of their unique structures and properties. Cellular walls made from nickel (Ni)–phosphorous alloy have demonstrated highest energy absorbing capability of the metallic closed cellular materials, which are best suited for chest protection from bullets. 2 Ceramics for MEMS Sensors Piezoelectric lead–zirconate–titanate (PZT) ceramics are widely used in the design of MEMS sensors and actuators capable of operating under harsh environments.

Development of composites consisting of nanotubes and polymers is possible, but it is difficult to engineer the interfaces between these two materials. The research results published in the March 2006 edition of the Journal of Nano Letters indicate that it is possible to develop arrays of annotates into a soft polymer matrix without disturbing the shape, size, or alignment of the annotates. These arrays can be used in the design and development of artificial foot or arm with a sticking power capacity of 200 times.

It is possible to develop a sensor capable of determining and identifying unique chemical signatures or explosives that emanate from specific individuals within groups of enemy troops or combatants. Israeli scientists have developed a means of identifying previously undetectable explosives, which are used by suicide bombers. The peroxide explosive tester (PET) developed by Israeli scientists can detect triacetone triperoxide (TATP), a chemical commonly used in suicide bombs. The military authorities expect wide-ranging capabilities from technology advances involving every aspect of military life: arms, armor, armaments, communications, intelligence, and counter-intelligence, planes, submarines, UAVs, warships, robotics, and commercial-off-the-shelf (COTS) hardware and software products capable of meeting stringent reliability requirements.

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