Transfer theory and image formation in a time dependent aberrationless magnetic field lens

Optik (Jena)

Volumn 113, Issue 6, 2002, Pages 233-240

  Calvo, Miguel ^a,b  

^a PONTIFICIA UNIVERSIDAD CATÓLICA DE VALPARAÍSO   (Chile)

^b DEPARTAMENTO DE FÍSICA   (Chile)

Author keywords

Electromagnetic lenses; Transfer theory

Indexed keywords

ABERRATIONS; FOCUSING; IMAGE PROCESSING; LIGHT SCATTERING; MAGNETIC FIELDS; MAGNETIC LENSES; MAGNETOELECTRIC EFFECTS; QUANTUM THEORY; TRANSFER FUNCTIONS; WAVE EQUATIONS;

ELECTROMAGNETIC LENSES;

ELECTRON LENSES;

EID: 0036378791     PISSN: 00304026     EISSN: None     Source Type: Journal    
DOI: 10.1078/0030-4026-3610158     Document Type: Article

References (16)

1. Scherzer O: The theoretical resolution limit of the electron microscope. J. App. Phys. 20 (1949) 20-23
2. Septier A: The struggle to overcome spherical aberration in electron optics. Adv. Opt. Electron Microsc. 1 (1966) 204
3. Hawkes P, Kasper E: Principles of Electron Optics. Vol 2, pp. 872-876. Acad. Press, England 1966
4. Oldfield L: Microwave cavities as electron lenses. In Hawkes P (Ed.): Image processing and computer design in electron optics. pp. 370-399. Academic Press, London 1973
5. Calvo M, Lazcano P: Theory of a Time Dependent Magnetic Field Lens. Optik 113 (2002) 31-34
6. c ≪ 1, so that corrections are very small
7. This property can be readily extended for arbitrary forms of the magnetic field pulses
8. Oldfield L: A rotationally symmetric electron beam chop-per for picosecond pulses. J. Phys. E 9 (1976) 455-463
9. Kung P et al.: Generation and measurements of 50 fs (r.m.s.) electron pulses. Phys. Rev. Lett. 73 (1994) 967-971
10. Calvo M: Classical and quantum theory of a 2 dimensional electron gas in a time dependent magnetic field. Phys. Rev. B 54 (1996) 5665-5674
11. Glaser W.: Elektronen- und Ionenoptik. In Flugge S (Ed.): Encyclopedia of Physics. pp 123-395. Springer-Verlag, Berlin 1956
12. Hawkes P, Kasper E: Principles of electron optics, Vol. 3, pp. 1211-1295. Acad. Press. London 1994
13. Hanszen K: Contrast transfer and image processing. In Adv. in Opt. Electron Microsc. 4 (1971) 1-99
14. Saxton W: Computer techniques for image processing in electron microscopy. In Supplement to Adv. Electron Phys. 10 (1978) 289-349
15. We have chosen this particular wavefunction only for illustrative purposes. Other similar choices will give similar results
16. Fowler T, Good W: Pulsed electron beams. Nucl. Instrum. Meth. 30 (1964) 23-33