Onde evanescenti Near field optics Helmholtzs equations Plane
- Slides: 54
Onde evanescenti Near field optics
Helmholtz’s equations
Plane waves
Angular decomposition
Angular decomposition
Angular decomposition
Angular decomposition It seems impossible to confine light much below .
Angular decomposition However it is simple to confine light much below .
Plane waves
Plane waves Evanescent waves
Angular decomposition Fields localized below need evanescent waves SNOM
Riflessione totale
Metodo grafico per rifrazione
Metodo grafico per rifrazione
Metodo grafico per rifrazione Angolo limite
Metodo grafico per rifrazione Oltre angolo limite
Rifrazione oltre angolo limite
Rifrazione oltre angolo limite
Rifrazione oltre angolo limite
Onda evanescente
Relazioni di Fresnel n 2 y Er H t Et Er Ht Hr qt z Ei n 2 y Et qt z Hi Ei
Relazioni di Fresnel n 2 y Er H t Et Er Ht Hr qt z Ei n 2 y Et qt z Hi Ei
Riflessione e rifrazione n 2 y Er H t Et Er Ht Hr qt z Ei n 2 y Et qt z Hi Ei
Riflessione e rifrazione
Riflessione totale
Riflessione totale
The Nobel Prize in Physics 2009 Charles K. Kao "for groundbreaking achievements concerning the transmission of light in fibers for optical communication"
Onda evanescente Contiene energia elettromagnetica?
Onda evanescente Atomo, molecola, centro di scatterning
Onda evanescente EMISSIONE RIEMESSA Atomo, molecola, centro di scatterning Si puo’ assorbire energia da un’onda evanescente
Frustrated total internal reflection Si puo’ “trasformare” un’onda evanescente in un’onda propagante Simile all’effetto tunnel in MQ
Frustrated total internal reflection Si puo’ “trasformare” un’onda evanescente in un’onda propagante Simile all’effetto tunnel in MQ
Relazioni di Fresnel TE TM
Vettore di Poynting
Relazioni di Fresnel TE TM
Onda evanescente
Bilancio energia ?
Goos Hanchen shift
Goos Hanchen shift D
Goos Hanchen shift
Misura del Goos Hanchen shift Frustrated total attenuated reflection
Misura del Goos Hanchen shift l=32. 8 mm A. Haibel et al. Phys. Rev. E 63, 047601 (2001)
Misura del Goos Hanchen shift l=32. 8 mm A. Haibel et al. Phys. Rev. E 63, 047601 (2001)
Modi guidati
Dielectric slab Within the limit angle Cono di luce Beyond the limit angle
Dielectric slab evanescent waves Slab evanescent waves
Beyond the limit angle In the media In air
Dielectric slab di Beyond. Cono the limit angle luce Even states Odd states
Beyond the limit angle
Evanescent fields Extended modes Guided modes
Analogy with QWell Energy E/V Cono di luce Extended states Confined states Modi guidati Confinamento moto lungo z z Evanescent wavefunction
Excitation of the guided modes Total internal reflection evanescent waves
Excitation of the guided modes Frustrated Total internal reflection
- Onda evanescente
- Difference between ray optics and wave optics
- Reflection and refraction venn diagram
- Data plane control plane and management plane
- Onde estamos e para onde queremos ir projeto de vida
- Seahawks tackling drills
- Forward equivalence class
- Z-transform examples
- 후크의 법칙
- 21lwuy8i6hw -site:youtube.com
- Individual differences in second language learning
- Field dependent vs field independent
- Electric field and magnetic field difference
- Waveguide cutoff frequency
- Database field types and field properties
- Field dependent and field independent
- Magnetic field
- Inclined plane equations
- Plane strain transformation equations
- Mohr circle equations
- Electric field charge formula
- Rainbow optics star spectroscope
- Gestaltism
- Turba optics
- Types of optics
- Microwave optics
- Single ray
- Grade 10 optics
- Purdue phys 241
- 5 difference between luminous and non luminous objects
- Salt characteristics of a plane mirror
- Hotwire fiber optics
- Single slit envelope
- Http //www.phys.hawaii.edu/ teb/optics/java/slitdiffr/
- Astigmatism classification
- Geometric optics problems
- Fourier optics
- Vergence formula optics
- The computational complexity of linear optics
- Snell's law
- Light energy bill nye
- Introduction to fiber optics
- Cauchy formula optics
- Adaptive optics
- Geometrical optics
- Geometric optics ppt
- What medical procedure uses fiber optics bill nye
- The computational complexity of linear optics
- Fso
- Nicolas alba
- Modern optics experiment
- Optics
- Free space optics
- Advantage and disadvantage of fibre optic cable
- Far point of emmetropic eye