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VERSION:2.0
PRODID:Icfo
X-PUBLISHED-TTL:P1W
BEGIN:VEVENT
UID:6a2b6d33e8868
DTSTART:20260616T100000Z
SEQUENCE:0
TRANSP:OPAQUE
DTEND:20260616T113000Z
LOCATION:Seminar Room
SUMMARY:ICFO | SILVIA GUADAGNINI
CLASS:PUBLIC
DESCRIPTION:There is growing interest in mid-wave infrared (MWIR) sensing a
 nd imaging technologies with improved sensitivity\, reduced size\, and low
 er weight. These advances are important for bolometry\, thermal imaging\, 
 and hyperspectral remote sensing. The ability to manipulate the spectral r
 esponse of a MWIR detector is essential for selectively detecting waveleng
 ths associated with specific materials\, temperature signatures\, or chemi
 cal species. Controlling the polarization response of the detector can yie
 ld additional capabilities for applications. At the same time\, reducing t
 he volume and thermal mass of the absorbing material remains critical\, en
 couraging the use of thin-film photonic platforms. In this context\, metal
  films and two-dimensional materials such as graphene have shown strong po
 tential for infrared detection.\nThis talk explores two novel approaches t
 o MWIR detection. The first approach introduces ultra-thin\, sub-wavelengt
 h perforated metal-film absorbers for bolometric sensing\, demonstrating l
 ow-thermal-mass devices with polarization-dependent response. We further e
 xpand our studies to achieve multi-resonant responses.\nThe second approac
 h explores novel tunable graphene-based platforms\, including angle-indepe
 ndent absorption modulation using continuous graphene layers and spectral 
 engineering of graphene nanoribbons to produce multiple absorption peaks.
DTSTAMP:20260612T022139Z
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