Flat Optics • Free­form, Fres­nel, Dif­frac­tive and Meta Lenses

Vor­trags­spra­che ist Englisch.

The ste­ady inte­rest in minia­tu­ri­zing opti­cal sys­tems ulti­m­ately leads to flat optics, which includes any con­cept to reduce the thic­k­ness of com­pon­ents and sys­tems by intro­du­cing sur­faces with high func­tion­a­lity. In this online semi­nar we invite you to join us on a jour­ney through the con­cepts, pro­s­pects, chal­lenges, and myths of the dif­fe­rent ver­si­ons of flat com­pon­ents, with an empha­sis on lenses.

The jour­ney starts with dis­cus­sing the most fun­da­men­tal goal in opti­cal design, that is, con­trol­ling and mani­pu­la­ting the wave­front of the light which enters an opti­cal sys­tem. While in ima­ging optics sphe­ri­cal wave­fronts are desi­red and aberra­ti­ons should be mini­mi­zed, in light sha­ping tail­o­red aberra­ti­ons should be intro­du­ced. The wave­front con­trol and sha­ping are accom­pa­nied by the con­cept of domain matching, which aims to maxi­mize the energy through­put in a sys­tem. It is rela­ted to fil­ling the stop in lens design. In the semi­nar we dis­cuss the deter­mi­na­tion of the requi­red wave­front con­trol depen­dent on the design goal and the role played by domain matching. We distin­gu­ish bet­ween sin­gle- and multi-chan­nel sys­tems, which can be unders­tood as a gene­ra­li­zed for­mu­la­tion to deal with the FOV of a lens sys­tem and poly­chro­ma­tic design tasks.

In the next stop on the jour­ney we dis­cuss ways to rea­lize requi­red wave­front phase mani­pu­la­ti­ons by opti­cal sur­faces. We start with the design of free­form sur­faces. Then, we turn to flat optics in the form of dif­frac­tive, Fres­nel-type and meta sur­faces. We look at pros and cons of the dif­fe­rent approa­ches and empha­size the simi­la­ri­ties from a design point of view. We use phy­si­cal optics ter­mi­no­logy in the semi­nar and do not rely on ray optics. This helps us to get a fresh view of opti­cal design and to seam­lessly include flat optics, with its cha­rac­te­ristic micro- and nan­os­cale sur­faces. The examp­les and illus­tra­ti­ons are done with the fast phy­si­cal optics soft­ware Vir­tual­Lab Fusion.

With a dis­cus­sion and Q&A ses­sion the jour­ney will be ended.

ANMELDUNG

Die Teil­nahme am Online-Semi­nar ist kos­ten­frei. Zur ANMELDUNG»

IHR REFERENT

Frank Wyrow­ski co-foun­ded the com­pany Light­Trans in 1999 and the com­pany Wyrow­ski Pho­to­nics in 2014. He has been pro­fes­sor of tech­ni­cal phy­sics at the Fried­rich Schil­ler Uni­ver­sity of Jena and head of the Applied Com­pu­ta­tio­nal Optics Group since 1996. His work as entre­pre­neur, rese­ar­cher, and tea­cher is dedi­ca­ted to deve­lo­ping fast phy­si­cal-optics tech­ni­ques and soft­ware to address the incre­asing demand to over­come the limi­ta­ti­ons of ray optics in modern optics and pho­to­nics appli­ca­ti­ons. Cus­to­mers world­wide bene­fit from his enga­ge­ment through the com­pa­nies’ con­sul­ting and engi­nee­ring ser­vices, and the com­mer­cial opti­cal design soft­ware, Vir­tual­Lab Fusion. Cur­rent R&D topics include appli­ca­ti­ons such as light­gui­des for AR and VR, light sha­ping, micro­scopy, inter­fe­ro­me­try, fiber cou­pling, dif­frac­tive and meta len­ses, DOE, HOE, free­form, micro­lens arrays, and phy­si­cal optics theory in general.

Die­ses Online-Semi­nar fin­det in Koope­ra­tion mit Light­Trans Inter­na­tio­nal statt.