Opto­Net Sum­mer Course • Fast Phy­si­cal Optics Mode­ling and Design

2022 Jul 4 Mon

until July, 8 2022 | 9:00 – 16:30



The demand for phy­si­cal optics simu­la­tion tech­no­logy has grown distinctly to the point where, for many appli­ca­ti­ons in modern optics, it sim­ply can­not be avo­ided. Swit­ching to a phy­si­cal optics model only in those parts of the sys­tem where ray tra­cing is not expec­ted to be an accu­rate option risks miss­ing important infor­ma­tion about the sys­tem, mainly due to the mutually incom­pa­ti­ble mathe­ma­ti­cal models – rays and elec­tro­ma­gne­tic fields.

Fur­ther­more phy­si­cal-opti­cal effects may also be rele­vant in other parts of the sys­tem were they were in prin­ci­ple not expec­ted. This is the jus­ti­fi­ca­tion behind the pro­po­sal for a ›fast phy­si­cal optics‹ approach: a phy­si­cal optics tech­ni­que which includes a gene­ra­liza­tion of ray tra­cing fully embedded inside the over­ar­ching phy­si­cal optics frame­work, and which, con­se­quently, pro­vi­des phy­si­cal optics simu­la­tion results just as fast as ray tracing.

In the Opto­Net Sum­mer Course Fast Phy­si­cal Optics Mode­ling and Design, we will equip you with the neces­sary theo­re­ti­cal and prac­ti­cal know­ledge to make the most of your work with the fast phy­si­cal optics soft­ware Vir­tual­Lab Fusion!


Phy­si­cal optics simu­la­tion tools & tech­no­logy are a must-have for the ana­ly­sis and design of modern sys­tems. In this course we will be employ­ing the com­mer­cial fast phy­si­cal optics mode­ling and design soft­ware Vir­tual­Lab Fusion to inves­ti­gate a series of opti­cal sys­tems taken from a broad range of fields of appli­ca­tion. We will use these examp­les to intro­duce the most important fea­tures and details of the under­ly­ing tech­no­logy of the soft­ware, from a very gene­ral per­spec­tive in the first two intro­duc­tory days, and with a focus on gra­tings as just one part of lar­ger, more com­plex opti­cal sys­tems in the advan­ced course cove­ring the last three days.

Some of the topics you can expect to hear about: inter­fe­ro­me­try, lens sys­tems, aniso­tropy, fiber cou­pling, ultras­hort pul­ses, meta gra­tings, aug­men­ted and mixed rea­lity light­gui­des, and more!



The course will be taught by experts of the Opti­cal Engi­nee­ring team at Light­Trans. Their daily work in direct cont­act with users of Vir­tual­Lab Fusion from all over the world means that they do not only have in-depth know­ledge of the soft­ware and how it works, but also, cru­ci­ally, of how best to put it to use in order to satisfy the requi­re­ments of a wide range of nowa­days deman­ded fields of application.

As a spe­cial high­light, the Pre­si­dent and inter­na­tio­nally renow­ned expert Prof. Dr. Frank Wyrow­ski (Fried­rich-Schil­ler-Uni­ver­sity Jena) will give an intro­duc­tion to the topic and cur­rent deve­lo­p­ments in the field of fast phy­si­cal optics on the first day of the training.


The Intro­duc­tion Parts from 04. – 05.07.2022 will be held by:
Senior Opti­cal Engi­neer Hart­wig Crails­heim and Opti­cal Engi­neer Sohrab San­gini.

The Gra­tings Parts from 06. – 08.07.2022 will be pre­sen­ted by:
Prin­ci­pal Sci­en­tist Dr. Ste­fan Stei­ner and Senior Opti­cal Engi­neer Olga Bal­adron-Zorita.


This course is desi­gned for opti­cal sci­en­tists, engi­neers, desi­gners with vary­ing levels of exper­tise with Vir­tual­Lab Fusion in mind, start­ing from total beg­in­ners.  

  • Intro­duc­tion: This two-day course pro­vi­des an over­view of Vir­tual­Lab Fusion’s fast phy­si­cal optics usage and tech­no­logy, and shows how to apply said tech­no­logy to a series of examp­les from a varied range of appli­ca­ti­ons. Beg­in­ner to inter­me­diate level.  
  • Gra­tings: This more advan­ced three-day course focu­ses on gra­tings, start­ing with the many tools available in Vir­tual­Lab Fusion to con­fi­gure very dif­fe­rent types of gra­tings as well as cha­rac­te­rize and opti­mize gra­tings as stan­da­lone com­pon­ents (inclu­ding meta­gra­tings); we then move on to include those gra­tings in more com­plex sys­tems, where the gra­tings will be accom­pa­nied by other opti­cal com­pon­ents. In the fol­lo­wing part, as a nota­ble appli­ca­tion exam­ple, we devote some time to the mode­ling and design of light­guide devices with gra­ting cou­plers for aug­men­ted and mixed rea­lity appli­ca­ti­ons. Advan­ced level.  
  • Both: The con­tent of the cour­ses has been desi­gned so that it is pos­si­ble to regis­ter for eit­her of them sepa­ra­tely, or to book both of them tog­e­ther.  


The Sum­mer Course will take place in Jena, the city of Ernst Abbe and Carl Zeiss who laid the foun­da­tion for modern optics 150 years ago. Since then the sci­ence city Jena has been shaped by inno­va­tive, light-based tech­no­lo­gies. Enjoy the spi­rit in the young uni­ver­sity town sur­roun­ded by a magni­fi­cent land­scape and well-known sights of Euro­pean history.

The venue is the SCALA Pan­ora­m­aban­kett Jena

The semi­nar will take place in the pan­orama ban­quet of the Jen­Tower (27th floor), Leu­tra­gra­ben 1 in Jena. With pro­fes­sio­nal tech­ni­cal equip­ment and a plea­santly undis­tur­bed envi­ron­ment at a height of 128 m, the best con­di­ti­ons for con­cen­tra­ted work are crea­ted. During breaks, we offer healthy, balan­ced cui­sine for refresh­ment and well-being.


We want to run a safe event and reduce the risk of infec­tion for all par­ti­ci­pants to the maxi­mum. This means:

  • We will pro­ba­bly limit the num­ber of participants.
  • When plan­ning the room, we will of course take distance and hygiene rules into account.


The regis­tra­tion is open. Reser­va­tions are pos­si­ble. Mem­bers from our part­ner clus­ters bene­fit from a con­sidera­ble discount.

Con­fe­rence mate­ri­als, docu­ments and exer­ci­ses are included in the con­fe­rence fee. Par­ti­ci­pants are kindly expec­ted to cover the costs for their indi­vi­dual tra­vel and accom­mo­da­tion. Please bring your own note­book, the requi­red soft­ware will be pro­vi­ded by the organizer.

Atten­dance fees for the Sum­mer Course depend on your pre­fer­red boo­king model:

  • Intro­duc­tion – 2 Days – July 4–5, 2022
    250 EUR mem­ber fee (Opto­Net mem­bers, mem­bers of the Regio­nal Net­works of Optec­Net Ger­many and mem­bers of inter­na­tio­nal part­ner networks)
    350 EUR regular
  • Gra­tings – 3 Days – July 6–8, 2022
    375 EUR mem­ber fee (Opto­Net mem­bers, mem­bers of the Regio­nal Net­works of Optec­Net Ger­many and mem­bers of inter­na­tio­nal part­ner networks)
    525 EUR regular
  • Intro­duc­tion + Gra­tings – 5 Days – July 4–8, 2022
    495 EUR mem­ber fee (Opto­Net mem­bers, mem­bers of the Regio­nal Net­works of Optec­Net Ger­many and mem­bers of inter­na­tio­nal part­ner networks)
    725 EUR regular
  • Intro­duc­tion + Gra­tings – 5 days (for under­gra­duate stu­dents) – July 4–8, 2022
    295 EUR par­ti­ci­pant fee (with proof of under­gra­duate studies)

(no VAT included accor­ding to §4 Nr. 22a UStG)

Appli­ca­ti­ons are con­duc­ted through the on-line form. A con­fir­ma­tion email will be sent once the appli­ca­tion has been recei­ved. The par­ti­ci­pant under­ta­kes the respon­si­bi­lity to pay the invoice(s) issued for the ser­vices in advance and before the due date indi­ca­ted on the invoice. Cash or che­ques will not be accepted. The trai­ning fees do not cover tra­vel, accom­mo­da­tion or any other costs such as health insu­rance. All boo­kings are pro­vi­sio­nal until full pay­ment has been recei­ved and ack­now­led­ged. Pro­vi­sio­nal Boo­kings can be reser­ved for up to 2 weeks, pro­vi­ded that the event’s maxi­mum capa­city has not been reached.


The can­cel­la­tion has to be sent by email to ed.anej-tenotpo@ofni
Before June 4: Fees will be fully reim­bur­sed. A EUR 100 hand­ling fee will be with­held. Until June 20: 50% of the total fee will be reim­bur­sed. A EUR 100 hand­ling fee will be with­held. No refunds will be made for can­cel­la­ti­ons after June 20 or for no-shows. In case a par­ti­ci­pant would not be able to attend the trai­ning, a sub­sti­tute can be accepted. Trai­ning will be con­firmed as soon as the mini­mum num­ber of par­ti­ci­pants has been rea­ched. All par­ti­ci­pants will receive a final con­fir­ma­tion. Trai­ning fees are reim­bur­sed in case of can­cel­la­tion due to force majeure or due to spea­k­ers‹ pre­ven­ti­ons. No com­pen­sa­tion will be paid for any addi­tio­nal costs incurred.

The Pro­gram in Detail

Satur­day & Sun­day, July 2–3

Arri­val in Jena

Mon­day, July 4 | Introduction

8:30 – 9:00
Wel­come & registration

9:00 – 11:00
Part I – Intro­duc­tion by Frank Wyrowski

  • Con­cepts and Deve­lo­p­ment of Vir­tual­Lab Fusion
  • Q&A

11:15 – 12:15
Part II

  • Ana­ly­sis of vec­to­rial effects in high-NA focu­sing lens system.
  • Con­nec­ting field sol­vers as the only way to tackle com­plex opti­cal systems.
  • Abbe’s image reso­lu­tion expe­ri­ment as an exam­ple that com­bi­nes len­ses and gratings.
  • Demons­tra­tion of working prin­ci­ple of con­fo­cal scan­ning microscopy.
  • Over­view of cur­rent cata­log of elec­tro­ma­gne­tic field sol­vers in Vir­tual­Lab Fusion.
  • Biref­rin­gence in cal­cite block. Com­plex pola­riza­tion effects in uniaxial crys­tals. Coni­cal refrac­tion in biaxial crystals.


13:15 –  14:45
Part III

  • See­king point­wise ope­ra­tors: taking advan­tage of the space and k domains.
  • The importance of the Fou­rier trans­form and its role in the con­side­ra­tion of diffraction.
  • Dif­frac­tion inte­grals. The Pois­son spot.
  • Mode­ling levels. Swit­ching dif­frac­tion on and off.
  • Mode­ling of pin­hole in sys­tem with low Fres­nel number.
  • Foucault’s knife-edge experiment.

15:00 – 16:30
Part IV

  • Non-sequen­tial simu­la­ti­ons. The chan­nel con­cept. Mas­ter channels.
  • Mode­ling of etalon.
  • Exami­na­tion of sodium D lines with Fabry-Perot etalon.
  • Inves­ti­ga­tion of ghost image effects in col­li­ma­tion system.

Tues­day, July 5 | Introduction

9:00 – 10:30
Part V

  • Gra­ting order channels.
  • Late­ral chan­nels – light­gui­des and micro­lens arrays.
  • Simu­la­tion of light pro­pa­ga­tion behind micro­lens array.
  • Simu­la­tion of a Shack-Hart­mann sensor.

10:45 – 12:15
Part VI

  • The light path fin­der. Advan­ced positioning.
  • Expe­ri­ments with Mach-Zehn­der inter­fe­ro­me­ter – com­ple­men­tary inter­fe­rence pat­tern cau­sed by prism beam split­ter; obser­va­tion of the Gouy phase shift, gene­ra­tion of spa­ti­ally vary­ing polarization.


13:15 – 14:45
Part VII

  • Advan­ced source mode­ling – the source mode concept.
  • Opti­cal topo­gra­phy scan­ning with Michel­son inter­fe­ro­me­ter. Par­tial tem­po­ral coherence.
  • Young’s dou­ble-slit expe­ri­ment with exten­ded source.
  • Pro­pa­ga­tion of ultras­hort pulse through high-NA lens.
  • Simu­la­tion of Tal­bot effect with unpo­la­ri­zed light.
  • Mode­ling of VCSELs and VCSEL arrays.

15:00 – 16:30

  • Con­ve­ni­ence tools. Para­me­tric optimization.
  • Ana­ly­sis and opti­miza­tion of fiber-cou­pling set-up.
  • Q & A.

Wel­come dinner
Gast­haus »Zum Roten Hirsch«

Wed­nes­day, July 6 | Gratings

9:00 – 10:30
Part I

  • Gra­ting con­fi­gu­ra­tion and modeling.
  • Gra­ting struc­ture specification.
  • Elec­tro­ma­gne­tic field sol­vers for gra­tings in Vir­tual­Lab Fusion (Thin Ele­ment Appro­xi­ma­tion, TEA, and Fou­rier Modal Method/Rigorous Cou­pled Wave Ana­ly­sis, FMM/RCWA).
  • Con­ve­ni­ence tools for gra­ting analysis.

10:45 – 12:15
Part II

  • Rigo­rous mode­ling examples.
  • Bla­zed gra­ting for spec­tral separation.
  • Ultras­parse dielec­tric nano-wire grid polarizers.
  • Para­me­ter swee­ping tool.


13:15 – 14:45
Part III

  • More examp­les of rigo­rous modeling.
  • Simu­la­tion and ana­ly­sis of slan­ted gra­tings with vary­ing parameters.
  • Volume holo­gra­phic gra­tings and their sensitivity.
  • Dif­frac­tion pro­perty of pas­sive parity-time (PT) grating.
  • Ana­ly­sis of CMOS sen­sor with micro­lens array.

15:00 – 16:30
Part IV

  • Gra­ting within opti­cal systems.
  • Angu­lar-fil­ter volume gra­ting for hig­her dif­frac­tion order suppression.
  • Reso­nant wave­guide gra­ting and its angular/spectral properties.
  • Using gra­tings as test objects in ima­ging systems.

Thurs­day, July 7 | Gratings

9:00 – 10:30
Part V

  • Gra­ting design/optimization.
  • Opti­miza­tion of slan­ted gra­ting for wave­guide coupling.
  • Para­me­tric opti­miza­tion tool.

10:45 – 12:15
Part VI

  • More gra­ting design and optimization.
  • Design of pola­riza­tion-inde­pen­dent high-effi­ci­ency gratings.
  • Design of anti­re­flec­tion moth-eye structures.


13:15- 14:45
Part VII

  • Meta­gra­tings.
  • Rigo­rous ana­ly­sis of nan­o­pil­lars as meta­sur­face buil­ding blocks.
  • Design of a bla­zed metagrating.

15:00 – 16:30

  • Meta­gra­tings.
  • Beam-split­ting meta­gra­ting design.
  • IFTA for phase pro­file generation.

Fri­day, July 8 | Gratings

9:00 – 10:30
Part IX

  • Con­fi­gu­ra­tion of light­guide devices for aug­men­ted and mixed rea­lity appli­ca­ti­ons with gra­ting couplers.
  • Idea­li­zed ver­sus real gratings.

10:45 – 12:15
Part X

  • Mode­ling of dif­fe­rent light­guide geometries.
  • K‑layout repre­sen­ta­tion.
  • Simu­la­tion of dif­fe­rent phy­si­cal optics effects in light­gui­des (pola­riza­tion, cohe­rence, diffraction…)


13:15 – 14:45
Part XI

  • Sys­te­ma­tic design tools for light­guide devices and their gra­ting regions.
  • Smooth modu­la­tion of gra­ting para­me­ters and sub­se­quent optimization.
  • Com­pa­ri­son with para­me­tric opti­miza­tion of seg­men­ted regions.

15:00 – 16:30
Part XII

  • Gene­ral Q & A.

16:30 – 17:00
Feed­back & Farewell


Event Type


SCALA Pan­ora­m­aban­kett
Leu­tra­gra­ben 1
07743 Jena

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Opto­Net e.V.
Nora Kirs­ten

+49 3641 327 92 90

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