Descrição: Studio One 3 is truly a revolutionary piece of software. It is literally a music recording studio in a virtual way. That is, everything you need, aside from a computer interface, microphone and mus...
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MANUAL PRACTICO/TEORICO PARA DIBUJO Y CONTROL TOPOGRAFICO DE MINAS SUBTERRANEAS CON DATAMINE STUDIO 3Full description
MANUAL PRACTICO/TEORICO PARA DIBUJO Y CONTROL TOPOGRAFICO DE MINAS SUBTERRANEAS CON DATAMINE STUDIO 3Descripción completa
Cst Studio Suite 2011 Brochure
Opti Optica call Appl Applic icat atio ions ns with CS CST T Microwave Studio ®
Dr. Frank Demming-Janssen
1
Outline • What What’s ’s so so spec specia iall on op opti tica call simu simula lati tion ons? s? – optics for beginners – materials
• Solv Solver er over overvi view ew fo forr opt optic ical al simu simula lati tion on • Application ex examples
2
Outline • What What’s ’s so so spec specia iall on op opti tica call simu simula lati tion ons? s? – optics for beginners – materials
• Solv Solver er over overvi view ew fo forr opt optic ical al simu simula lati tion on • Application ex examples
2
2 n d - O O r d e n a r a n d n d k 3 r d - O O r n d e o o i t r n a a l G o n a u u c l c l i n a s s C e a F r m B / S e F a t e a m T r i a l s Gr ad i tions i e nel equa ti en t I nd e s e r F e x x F i ib e b er r / O Op t p t i ic s c s o n m s a l P 3
n and k are called the refractive index and extinction coefficient
n
)
= n + i ⋅ k = n ⋅ (1 + i ) 2
*
2
ε re = n − k ε im = 2nk
optical user will ALWAYS use these parameters
* sometimes: 4
n = n +i ⋅
)
Calculate Drude Parameter Macro
5
Optical WG Modes with CST MWS
a
n = 1.16
n = 1.45
a = 500 nm Freq: 330 THz -> 909 nm wavelength 6
optical_wg_sweep.zip
www.cst.com
Theoretical Dispersion Plot
With:
7
b
=
β / k o − n2 n1 − n2
V
= k o ⋅ a ⋅ (n1 − n2 2
1
2
)
2
*G.P. Agrawal: Fiber Optics Communication Systems, Wiley Series in Microwave and Optical Engineering, pp 34
www.cst.com
Modes
HE11
HE12 8
www.cst.com
Modedispersion Mode 1
Error calculation: Because of the use of the normalized propagation const. b the error in this curve seems larger then it is! An error of less the 1% in the β might show up as a error of more then 5% in b! 9
www.cst.com
Modedispersion Higher Order modes
10
www.cst.com
Plasmon
11
Materials
• For metals the real part of eps is NOT negligible and is negative and dispersive!
12
CST MICROWAVE STUDIO ® Solver Overview Optical Applications
Transient
Frequency Domain
Eigenmode
13
• Large Problems – Memory efficient algorithm – Hardware Accelerator, Cluster Computing • Perfect Boundary approximation – eliminates staircase error at dielectric/dielectric and dielectric/PEC interface • Broadband Solution – Broadband Farfield Monitor • periodic structures with Floquet port modes – unit cells surface plasmons • TET mesh – accurate field solutions at dielectric/Drude metal interface • periodic boundaries (unit cells) – Dispersion diagrams
• PBA works only “perfect” on normal dielectric materials. • On Drude materials with a sign change of real par of ε at interface PBA has no effect – only affect local field values 17
Frequency Domain Solver - advantages • TET and HEX mesh – TET mesh resolves material interfaces: Accurate local field information for Drude Materials
HEX 18
TET
Frequency Domain Solver - advantages -
• TET and HEX mesh – TET mesh resolves material interfaces: Accurate local field information for Drude Materials
HEX 19
TET
Fields along line across material interface
Example: Nanometric Optical Tweezers
E
metal tip P
dielectric Sphere: 5 nm radius
20
Reference: Lukas Novotny, Randy X. Bian, and X. Sunney Xie, Physical Review Letters, Volume 79, No. 4, 28 July 1997
Acrobat-Dokument
Field enhancement Incident field λ = 810 nm
Polarization of the incident E-field aligned with tip axis:
P
enhancement factor 75
E
Polarization of the incident E-field perpendicular to the tip axis: no enhancement
E
21
P
Trapping a particle underneath the tip Incident field λ = 810 nm
Trapped dielectric particle
Trapped metallic particle 22
Frequency Domain Solver - advantages • TET and HEX mesh • Periodic and Unit cell calculation – Allows arbitrary angle of incidents for plane waves
23
Example: Frustrated Total Reflection
Transmission vs. Gap Width
Power Flow vs. Gap Width
24
Example: Surface Plasmon Generation
ε = 1.69
metal sheet 50 nm
ε = -15.99 + 0.8i
E
P
Incident field phi > phi critical
25
ε = 2.56
Example: Surface Plasmon Generation
26
Example: Plasmon Scattering
Grating distance
E
27
P
Example: Plasmon scattering by grading scattered field
E
28
P
Example: Plasmon excitation by grading
E P
Surface Plasmon
Grating distance
29
Example: Plasmon excitation by grading - structure setup -
• 2 D Solution – setup only 1 mesh cell in height
• Periodic Boundaries • Ports at both ends
30
Example: Plasmon excitation by grading - structure setup -
• record “balance”: Energy absorb by system 31
Example: Plasmon excitation by grading TD Simulation
grating 450 THz
550 THz 32
Frequency Domain Solver - advantages • TET and HEX mesh • Periodic and Unit cell calculation • Arbitrary material dispersion
For FD Solver ignore warning concerning material fit 33
