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Volker Doormann

My work in physics

 
Optics
Calculation of Optical Isolators / single mode Lasers ligth modes
CATIS - Constant Angle Transmission Interference Spectroscopy. Evaluation of dielectric tensor + thickness of thin semitransparent film from one transmission spectrum
Coherent and incoherent optical Transmission through thin films on thick substrates
Coherent Light modes in optical thin films
Elastooptical modulation techniques
Optical and Magnetooptical constants & complete dielectric tensor and thickness of thin film
Volume holography
X-ray
HRXRD High Resolution X Ray Defraction: Epitaxial growth of films, single crystals, lattice constant
XRD X Ray Defraction technique: Crystal phase determination & lattice constants
X Ray relating crystal data calculations
X Ray security group 3 systems
FEM
FEM Simulation of electron movement in Vacuum tubes (OPERA3D/SCALA)
FEM Simulation of transient fluid/structure coupling of turbulent flow and elastic walls (ANSYS 7.0)
FEM Simulation of transient heating in xray anodes. (ANSYS 7.0)
Software
Technology Process Control Software for e-beam sputtering of epitaxial films
Materials
Bi doped YIG (magn. optic) 
InSb (electron mobility)
Garnets
LiNbO
3 (optical data storage)
MgO
NdBaCuO
7 (superconductor)
Pt (contact layer)
PZT ((PbZr)TiO
3) (capacitor)
SrTiO
3
Tb-Fe (magn. optic)
W (anodes) 
YBaCuO
7 (superconductor) 
YIG (magnetooptics/microvave filters)
Ferroelectric materials
Ferromagnetic materials
Experimental
Conductivity of metallic thin films (van der Pauw) 
Cryo/Vacuum technique
Electron lithography by SEM Electron mobility in high conducting materials
Electron Spin Waves / Magnon drag effec (YIG/InSb) 
Electronics
High density optical data storage by volume holography
HRXRD High Resolution X Ray Defraction technique: Epitaxial growth of films, single crystals, lattice
HTC SQUID Characterizing
FFT-Noise measurements
Inertial navigation / gyro technique
Micowave transport of Electron Spin waves in YIG
Optical and Magnetooptical constants & complete dielectric tensor
RF-technique
X Ray Defraction XRD /HRXRD techniques: powder / epitaxially grown films

Patents

US0005122250A [] METHOD OF MANUFACTURING IRON GARNET LAYERS

US0005058971A [] PLANAR OPTICAL ISOLATOR

US0004778580A [] Method of manufacturing structured epitaxial layers on a substrate

CA0001291634A [ ] METHOD OF MANUFACTURING AN OPTICAL STRIPLINE WAVEGUIDE FOR NON-RECIPROCAL ...

EP0000680102A1[DE] Josephson-Stufenkontakt. [EN] Ramp type Josephson junction. [FR] ...

EP0000383399A2 [DE] Planarer optischer Isolator. [EN] Planar optical insulator. [FR] ...

EP0000352857A2 [DE] Verfahren zur Herstellung von Eisengranatschichten. [EN] Process ...

EP0000252536A1[DE] Verfahren zur Herstellung eines optischen Streifenwellenleiters ...

EP0000239140A2 [DE] Verfahren zur Herstellung von strukturierten epitaxialen Schichten ...

EP0000146985A2 [DE] Verfahren zur Herstellung dünner einkristalliner ferrimagnetischer ...

DE0004414843A1 [DE] Josephson-Stufenkontakt 

DE0003904660A1[DE] Planarer optischer Isolator

DE0003825788A1[DE] Verfahren zur Herstellung von Eisengranatschichten

DE0003704378A1[DE] Verfahren zur Herstellung eines optischen Streifenwellenleiters ...

DE0003605793A1[DE] Verfahren zur Herstellung von strukturierten epitaxialen Schichten ...

DE0003343768A1[DE] Verfahren zur Herstellung dünner einkristalliner ferrimagnetischer ...

 

Publications   AIP 


V. Doormann
Comment on G. Bond et al. 'Resistent Solar Influence on North Atlantic during the Holocene

http://www.volker-doormann.org/Comment_on_G_Bond_article.doc
(November 2013)

V.Doormann
Klima-Gezeiten entschlüsselt

http://www.volker-doormann.org/Klima.pdf (June,2013)

V.Doormann

Global Temperature Frequencies vs Solar Tide Frequencies

http://www.volker-doormann.org/frequencies_of_climate.doc (June 2013)

V. Doormann
Solar System Geometries And Terrestrial Climate

http://www.volker-doormann.org/ghi_solar_s.pdf (August,14, 2010)


B. David, D. Grundler, S. Krey, V. Doormann, R. Eckart, J.P.Krumme, G.Rabe, and O. Dössel
High-T
c SQUID magnetometers for biomagnetic measurements
Supercond. Sci. Technol. 9, A96-A99 (1996). 

J-P. Krumme, V. Doormann, F. Welz, O. Dössel  et al.
Ion-beam sputter deposition process for Y
1Ba2Cu3O7 thin-film structures
J. Mater. Res., Vol. 9, No. 11, 11. Nov 1994, p.2747   Abstract

J-P. Krumme, V. Doormann, F.Welz, R. Eckard, O. Dössel et al.
Epitaxial Y
1Ba2Cu3O7 thin films with (103)/(110)- and (100)/(010)-orientation on NdGaO3 and SrTiO3 substrates grown by ion-beam sputter deposition 
J. Mater. Res., Vol 9, No 12, 1994   Abstract

B. David, O. Dössel, V. Doormann, R. Eckart, R. Kobs, J. P. Krumme, F. Welz, M. Knechtel and D. Grundler, 
SQUIDs aus Hoch-T
c-Supraleitern. BMFT Abschlußbericht, Förderkennzeichen 13N5709 3. 1992. 

B. David, D. Grundler, R. Eckart, K. Fanghänel, J.-P. Krumme, V. Doormann and O. Dössel, 
A multilayer process for the fabrication of HTSC flux transformers and SQUIDs.
Superconductor Science Technology, vol. 7, pp. 287-289. 1994. D. Grundler, B. David, R. Eckart, K. Fanghänel, V. Doormann, J.-P. Krumme, O. Dössel, 
Fabrication and Performance of Highly Sensitive YBa
2Cu3O7 dc SQUID Magnetometer with Thin-Film Flux Transformer
European Conference on Applied Superconductivity (EUCAS), Göttingen, Germany 1993 1303-1306.  

V. Doormann, J.-P. Krumme, and H. Lenz 
Optical and magneto-optical tensor spectra of bismuth-substituted yttrium-iron-garnet films 
J. Appl. Phys. 68 (7) 1. October 1990, p 3544 
.pdf

J-P. Krumme, V. Doormann, P. Hansen,  et al 
Optical recording aspects of rf magnetron-sputtered iron-garnet films
J. Appl. Phys. 66 (9). 1. November 1989, p.4393 
.pdf

J-P. Krumme, V. Doormann, H. Meyer, W. Radke, B. Strocka 
Sputter epitaxy of iron-garnet waveguides 
SPIE Vol. 1018 Electro-Optic and MagnetoOptic Materials 1988  p. 109 

J-P. Krumme, V. Doormann, B. Strocka, K. Witter  et al.
Magnetoelastic and optoelastic coupling in (111)- and (110)-oriented bismuth-iron garnet films
prepared by sputter epitaxy 
J. Appl. Phys. 62 (9) 1. Nov. 1987, p. 3879 

J-P. Krumme, V. Doormann, B. Strocka, and P.Willich 
Selected-area sputter epitaxy of iron-garnet films 
J. Appl. Phys. 60 (6) 15. September 1986 p. 2065 

J-P. Krumme, V. Doormann, and P.Willich
Bismuth iron garnet films prepared by rf magnetron sputtering 
J. Appl. Phys. 57 (1) 15. April 1985  p. 3885 

V. Doormann, J.-P. Krumme, C.-P. Klages et al. 
Measurement of the Refractive Index and Optical Absorption Spectra of Ebitaxial Bismuth
Substituted Yttrium Iron Garnet Film at uv to near-ir Wavelengths 
Appl. Phys. A 34, 223-230 (1984) Abstract

J-P. Krumme, V. Doormann, R. Eckart 
Bismuth-substituted iron garnet films prepared by RF diode sputtering 
IEEE Transactions on Magnetics, Vol. Mag-20, No 5, September 1984 

J-P. Krumme, V. Doormann, and C.-P. Klages 
Measurement of the magnetic properties of bismuth-substituted iron garnet films using
piezobirefringent modulation 
Applied Optics / Vol 23, No 8 / 15. April 1984 p. 1184 

E. Krätzig, F. Welz, R. Orlowski, V. Doormann, and M. Rosenkranz 
Holographic storage properties of BaTiO
3 
Solid State Communications, Vol. 34, 1980, pp.817-819 

E. Krätzig, R. Orlowski, V. Doormann, and M. Rosenkranz 
Optical information storage in LiTaO
3:Fe-Crystals 
SPIE Vol. 164 (Sira, Oct. 1978), p.33   

H. Kurz, V. Doormann an R. Kobs
Photorefraktive Recording of Volume Holograms in doped LiTaO
3 
Applications of Holography and Optical Data Processing, Pergamon Press ,1977  


B. Schneider

Magnetostatic Wave Drag on Elektrons in a Hybrid Sample of YIG and InSb

phys. stat. sol. (a)
23, 187, (1974) pdf



Pictures

1958


I started my work in 1958 at Grundig in Hamburg, learning all the electron current physics in vacuum tubes and RF technique.  


Camera 'Fernauge' with resistron 1958


The subway station Mönkebergstrasse was the first subway station in town we have installed a TV camara and a monitor-

1963
In July 1963 I went to C. Plath Litton in Hamburg, inertial navigation technique for the German Starfighter F 104. 

Testing Litton Inertial navigation LN3 computer for the Bundeswehr F104 Starfighter (1963)


LN3 computer test (1963)


Litton Inertial navigation LN3 computer test crew for the F104 Starfighter (1963)



Litton Inertial navigation LN3 platform for the Bundeswehr F104 Starfighter (1963)


 Litton Inertial navigation system LN3



video demonstration on youtube




F104 Starfighter



LN3 system test (1963)



Litton Inertial navigation LN3 system test for the F104 Starfighter



Night shift LN3 computer test (1963)



In the years 1968 -1970 I take part on the development of the inertial gyro compass PL41 (left) of high accuracy for marine boats

.

I did the Computer test equipment for the PL41

A final test in 1970 around Helgoland on a speedboat of the German Bundeswehr has shown a breakthrough in accuracy of gyro compass technology.



Compass PL41 testing in the North Sea around Helgoland in April 1970.
The speedboat was running manoevres at 30+ knots 4 times 84 minutes North-South 'Schuler' periods.
It was  great success of team work.


Bundeswehr speedboats (1970)


It was done  
 

  Litton PL41 platform 1970



The
  compass PL41 is still - after 39 years - in production   and in use  -   p.e. in boats from Israel .  


1970

In July 1970 I went to the Phillips Research Lab in Hamburg as assistant to Dr. B. Schneider

My lab in 1970 measuring 2 GHz spin waves in YIG (Yttrium iron garnet) single crystals.  
[
B. Schneider, Magnetostatic Wave Drag on Elektrons in a Hybrid Sample of YIG and InSb
phys. stat. sol. (a)
23, 187, (1974) pdf ]


Holographic data storage in LiNb0
3 (1976)


Multiple holographic picture storage in LiNb03 (1977)




  

I

(1977)


With colleagues


In a 1mm thick LiNb03 single cristal of 5mm edge lenght 109 bits/cm3 of data or 100 pictures can be stored out of focus (1978).

In March of 2011 it was said that the capacity of ferroelectrica could be several billion (1012) data points per square inch ( ~ several  1011bit/cm³ )
(Science DOI: 10.1126/science.1200605)

 
Volume holography very high density picture storage in LiNb0
3 about ~1012 bit cm-3 (1979)


Three volume-holograms written (from a slide) und reconstructed with the upper setup using two wavelengths from an
 Argon Laser (blue und green) and one wavelenght from a Krypton Laser (red) in a LiNbO3 cristal (Size of 3 X 4 X 5 mm). (1979)


The crystal (right) was coated with a layer, to increase the total transmission power.



Magneto-optic domain pattern from a single cristal sputtered with selected area epitaxy.
Magnetron sputtered Bi-Iron-Garnet film (0.005 mm) pixel size length 0.15 mm.
Domains show pattern of threefold garnet single crystal structure growth direction [111] using polarized light.
Picture was taken with a Zeiss
AXIOMAT
(1984)



PC controled e-beam  sputter chamber for high temperature SQUID's Supraconducting QUantum Interference Divice (1989)

 
Crystal structure of YBaCuO
7 Superconductor (1995)


Ansys FEM Simulation of heat transfer into a fluid 2002  
Liquid-metal anode x-ray tube


Ansys FEM Simulation of heat transfer into a metallic fluid 2002


FEM Simulation of thin window


Scala Opera Vector Fields 3D Simulation of 300 kW electron beam long focus in an x-ray tube for XT scanner.  2006.



Electron beam cathode head 2006



Work room for 10 years


                    


                With thank to all colleagues in the field