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IFW Dres­den e.V. - Solid State and Mater­i­als Rese­arch

The Leib­niz Insti­tute for Solid State and Mater­i­als Rese­arch Dres­den e. V. (IFW Dres­den) con­ducts mod­ern mater­i­als rese­arch on a sci­ent­i­fic basis for the devel­op­ment of new and sus­tain­able mater­i­als and tech­nolo-gies. The insti­tute employs an aver­age of 500 people from over 40 nati­ons and, in addi­tion to its sci­ent­i­fic tasks, is ded­ic­ated to pro­mot­ing young sci­ent­ists and engin­eers. Fur­ther inform­a­tion at:

Doc­toral Researcher Pos­i­tion (m/f/d)


Engin­eer­ing of com­pact quantum light sources for indus­trial applic­a­tions

Working field:

“Sys­tem devel­op­ment of effi­cient and ultra-com­pact quantum light sources
based on GaAs quantum dots for indus­trial envir­on­ments”


The Insti­tute for Integ­rat­ive Nanos­ciences (IIN), Leib­niz IFW Dresden e.V. is one of the world lead­ers in the domain of semi­con­ductor quantum light sources and provided pion­eer­ing con­tri­bu­tions to the design, fabri-cation and char­ac­ter­iz­a­tion of self-assembled quantum dots. Quantum dots are a prom­ising plat­form for the real­iz­a­tion of devices of the quantum inter­net, such as sources of entangled photon sources, quantum re-peat­ers and one-way quantum com­put­ing. In order to real­ize these devices, high qual­ity droplet etched GaAs quantum dots with spe­cific prop­er­ties are used. Recently, we have demon­strated single source entan­gle­ment swap­ping and GHz-clocked emis­sion using our lead­ing quantum dot-based entan­gle­ment photon sources. We aim to deepen and diver­sify the invest­ig­a­tions of quantum dot-based quantum inform­a­tion sys­tems and there­fore offer a PhD pos­i­tion on the topic:

“Sys­tem devel­op­ment of effi­cient and ultra-com­pact quantum light sources
based on GaAs quantum dots for indus­trial envir­on­ments”

Your pro­file: We are look­ing for a highly motiv­ated and team-ori­ented stu­dent (m/f/d), who holds a mas­ter`s degree in phys­ics or in an engin­eer­ing dis­cip­line such as mech­an­ical, optical, elec­tronic or aerospace engi-neer­ing. Basic know­ledge of cryo­genic sys­tems, optics as well as mech­an­ical engin­eer­ing is desired. Addi-tion­ally, a basic under­stand­ing of solid state and semi­con­ductor sys­tems as well as micro­struc­tur­ing tech-niques would be bene­fi­cial. The suc­cess­ful can­did­ate (m/w/d) should be inter­ested in applied sci­ences and enjoys prac­tical work. Very good com­mu­nic­a­tion skills in writ­ten and spoken Eng­lish are required.

What we offer:

Pro­ject descrip­tion: The suc­cess­ful PhD can­did­ate (m/f/d) will be respons­ible for the devel­op­ment of an ultra-com­pact entangled photon pair source sys­tem based on GaAs quantum dot devices. For this pur­pose, the can­did­ate (m/f/d) will design and imple­ment a cus­tom integ­ra­tion solu­tion of the optical quantum light sources in a cryo­stat in cooper­a­tion with industry part­ners. The can­did­ate (m/f/d) will be respons­ible to inte-grate and oper­ate three of these sys­tems in quantum com­mu­nic­a­tion net­work test­bed. The per­form­ance of these sys­tems will be char­ac­ter­ized and their long-term per­form­ance will be invest­ig­ated/improved. The can-did­ate (m/f/d) will join the "Solid-State Quantum Photon­ics" team of Dr. Cas­par Hop­f­mann and will be able to develop his/her skills as a young sci­ent­ist (m/f/d). The act­ive par­ti­cip­a­tion of the can­did­ate (m/f/d) in internal and external con­fer­ences, work­shops and sem­inars is expli­citly desired.

Con­di­tions: The employ­ment rela­tion­ship, includ­ing remu­ner­a­tion, is based on the fed­eral pub­lic employ­ment stand­ard (TV-L) accord­ing to pay group 13. We offer a weekly work­ing time of 26 hours (65%). For excep-tion­ally well qual­i­fied can­did­ates an up to a 100% (40 hours) con­tract may be pos­sible. The employ­ment is ini­tially lim­ited to 1 year, an exten­sion for another 2 years is pos­sible.

The IFW would like to increase the num­ber of women in the sci­entific field. Qual­i­fied women are there­fore expli­citly invited to apply. Severely dis­abled applic­ants (m/f/d) will be given pref­er­en­tial con­sid­er­a­tion in case of equal suit­ab­il­ity and qual­i­fic­a­tion.

How to apply:

Please send your applic­a­tion with inform­at­ive doc­u­ments (let­ter of motiv­a­tion, cur­riculum vitae, proof of edu­ca­tion, ref­er­ences, etc.) by Septem­ber 30, 2022, exclus­ively in elec­tronic form and in a PDF file (other formats will not be con­sidered), quot­ing the ref­er­ence num­ber 054-22-4320 to:

For tech­nical quer­ies, please con­tact Dr. Cas­par Hop­f­mann: