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SUMMARY:IMT Talk - III-V Photonic Devices Monolithically Integrated on Sil
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DTSTART:20210125T100000
DTEND:20210125T110000
DTSTAMP:20260528T073845Z
UID:eada83b959a8cd639f58988470cc6e6b5f183527ac0613a55d91ecfd
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr Kirsten Emilie Moselund \nAbstract:\nFor more than half a c
 entury\, researchers have been working on monolithic integration of III-V 
 materials on silicon in order to achieve a seamless integration of active 
 III-V photonic and electronic devices with silicon electronics and passive
 s. In this talk I will discuss our work on Template-Assisted Selective Epi
 taxy (TASE) for the monolithic integration of photonic devices on silicon.
 \nIn this method we first use a combination of e-beam lithography and etch
 ing to define our structures in silicon. Using an oxide template\, select 
 features of the silicon may be replaced locally by active III-V material g
 rown by metal-organic chemical vapor deposition (MOCVD). Since the geometr
 y of the III-V features are determined by the shape of the cavity and not 
 by carefully tuning growth conditions\, this method provides advantages in
  terms of avoiding issues such as lateral overgrowth of junctions and pres
 ents a larger window for growth optimization.\nThe versatility of this tec
 hnique will be demonstrated through several experimentally demonstrated de
 vices. In-plane monolithic InGaAs photodetectors operating at above 25 GHz
  and with maxima in the O- and C-band\, hybrid InGaAs/Si photonic crystal 
 1D nanobeam lasers emitting over the entire telecom spectrum\, and differe
 nt examples of III-V microdisk lasers. In the latter case strategies for c
 avity scaling as well as the impact of thermal effects will be discussed.\
 n\nBio: \nKirsten Emilie Moselund received the M.Sc. degree in engineering
  from the Technical University of Denmark (DTU) in 2003 and the Ph.D. degr
 ee in microelectronics from the Swiss Federal Institute of Technology in L
 ausanne (EPFL)\, Lausanne\, Switzerland\, in 2008. In 2008\, she joined th
 e IBM Zurich – Research\, where she is currently managing the Materials 
 Integration and Nanoscale Devices group\, which among other things focuses
  on the development of III-V on silicon monolithic integration for novel p
 hotonic and electronic device concepts. Her research interests include nan
 ofabrication technology\, semiconductor physics\, nanophotonics and novel 
 electronic and photonic device concepts. She is the co-author of more than
  100 scientific publications and holds an ERC grant on the development of 
 nanophotonic light sources.\n 
LOCATION:By ZOOM https://epfl.zoom.us/j/89665080552?pwd=aFZSN0RVTHB4Q0FSOW
 Q0MlNWMEtrUT09
STATUS:CONFIRMED
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