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style="text-indent:0px;background-color:#ffffff;text-align:justify"><span
style="color:#55913c;font-family:'times new roman' , serif"><span
style="font-size:21.3333px"><b>Exciton-polaritons
in layered van der Waals
heterostructures</b></span></span><span
style="color:#55913c;font-family:'times new roman' ,
serif;font-size:12pt"><b
style="color:#000000;font-family:'arial'
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sans-serif;font-size:21.3333px"> </b></span><span
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serif;font-size:21.3333px"> </span></div>
<div
style="color:#000000;font-family:'arial'
, 'helvetica' ,
sans-serif;font-size:12pt;text-indent:0px;background-color:#ffffff;text-align:justify"><span
style="color:#000000;font-family:'century gothic' ,
sans-serif;font-size:16px;font-style:normal;font-weight:normal;letter-spacing:normal;text-transform:none;white-space:normal;word-spacing:0px"><span
style="font-size:18.6667px"><b><b style="color:#000000;font-family:'new
roman' 'new york'
'times'
serif;font-size:16px;font-style:normal;letter-spacing:normal;text-align:center;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:#ffffff"><span
style="font-size:14pt;font-family:'century gothic' , sans-serif"
lang="EN-GB">Dr.
sc. </span></b></b></span></span><span
style="font-family:'century
gothic' , sans-serif"><span
style="font-size:18.6667px"><b>Vito Despoja</b></span></span></div>
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style="font-family:'century
gothic' , sans-serif"><span
style="font-size:14.6667px"><b>Institute of Physics</b></span></span><b
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'times' ,
serif;font-size:12pt;font-style:normal;font-weight:normal;letter-spacing:normal;text-transform:none;white-space:normal;word-spacing:0px"><span
style="font-size:11pt;font-family:'gothic'" lang="EN-GB"> </span></b><span
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<p
style="text-align:justify;margin:0px"><span
style="text-align:left;font-size:14px">In the first part of the
presentation, I will
reflect on the latest
achievements regarding
the development of the
theoretical formalism
that describes the
interaction of photons
and electronic
excitations in layered
van der Waals crystals
[1]. In the following
I will talk about the
results of that
formalism which relate
to; 1. the excitons
intensity vs doping in
black phosphorus [1];
2. the interaction
between cavity photons
and excitons in
transition-metal
dichalcogenides (TMDs)
and in fullerene (C<sub>60</sub>)
thin films [2,3] and;
3. the interaction
between 'free' s(TE)
photons and excitons
(formation of trapped
photons) in WS<sub>2</sub>/hBN
and in C<sub>60</sub>
multilayers [4,5].
Finally, I will show
the advantages and
disadvantages of the
current research and
in which direction the
research will
continue.</span><span
style="color:#000000;font-family:'arial' , 'helvetica' ,
sans-serif;font-size:14px;text-align:left"> </span></p>
<p
style="text-align:justify;margin:0px"><span
style="color:#000000;font-family:'arial' , 'helvetica' ,
sans-serif;font-size:14px;text-align:left"><img
src="cid:part1.zUvDIRPs.o9nmAqV0@ifs.hr"
data-mce-src="imap://ddominko%40ifs%2Ehr@mail.cdu.gov.hr:993/fetch%3EUID%3E/INBOX%3E26324?part=1.2.2&filename=image.png"
class="" width="702"
height="222"></span></p>
<p
style="margin:0px;text-align:justify"><span
style="font-size:10pt">The
spectral intensity of
the s(TE) cavity
photon n=1 in the (a)
empty Al/Al<sub>2</sub>O<sub>3</sub>/vacuum/Al
cavity (N = 0) and in
the cavity supporting
C<sub>60</sub> film of
thicknesses (b) N =
5, and (c) N = 25
molecular layers.
Here, ω<sub>ex1</sub>,
ω<sub>ex2</sub> and ω<sub>ex3</sub>
denote three of the
most intensive
π-excitons in C<sub>60</sub>.</span></p>
<p
style="font-size:12pt;margin:0px;text-align:justify"><br>
</p>
<p
style="margin:0px;text-align:justify"><span
style="font-size:14px">[1]
D. Novko, K. Lyon, D.
J. Mowbray, and V.
Despoja Phys. Rev. B
104, 115421 (2021)</span></p>
<p
style="margin:0px;text-align:justify"><span
style="font-size:14px">[2]
D. Novko and V.
Despoja, Phys. Rev.
Research 3, L032056
(2021)</span></p>
<p
style="margin:0px;text-align:justify"><span
style="font-size:14px">[3]
V. Despoja and D.
Novko, Phys. Rev. B
106, 205401 (2022)</span></p>
<p
style="margin:0px;text-align:justify"><span
style="font-size:14px">[4]
V. Despoja and L.
Marušić, Int. J. Mol.
Sci. 23, 6943 (2022)</span></p>
<p
style="margin:0px;text-align:justify"><span
style="font-size:14px">[5]
N. Golenić and V.
Despoja, Phys. Rev. B
Lett., under review</span></p>
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style="background-color:#fffec4">Nastupno</span></span> predavanje će se
održati </span><span
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predavaonici u 1.
krilu Instituta.</span></p>
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<div
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style="font-size:11pt"><a
href="https://us06web.zoom.us/j/84831165364?pwd=THRSK1VmZDNjS3NBOGplODREYlFTUT09"
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<div
style="font-size:12pt"><span
style="font-size:11pt">Meeting ID: 848 3116 5364</span></div>
<div
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style="font-size:11pt">Passcode: 098884</span></div>
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<div>Predsjednik
Znanstvenog vijeća
Instituta za
fiziku</div>
<div>dr. sc. Damir
Starešinić</div>
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<span style="color:#000000;font-family:'arial' ,
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<span style="color:#000000;font-family:'arial' ,
'helvetica' , sans-serif;font-size:12pt"><a class="moz-txt-link-freetext" href="https://www.phy.pmf.unizg.hr/cgi-bin/mailman/listinfo/seminar">https://www.phy.pmf.unizg.hr/cgi-bin/mailman/listinfo/seminar</a></span></div>
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