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BEGIN:VEVENT
DTSTAMP:20261021T023531Z
LAST-MODIFIED:20151207T163941Z
DTSTART:20151211T210000Z
DTEND:20151211T220000Z
UID:event1521@bu.edu
URL:http://physics.bu.edu/internal/events/show/1521
SUMMARY:New Emergent Optical Forces in Chiral Plasmonics
DESCRIPTION:Featuring Mohammadhossein Alizadeh\n\nPart of the PhD Final Ora
	l Exams.\n\nExamining Committee: \n\nProfessors Bjoern Reinhard\, Shyam Err
	amilli\, Roberto Paiella\, Kevin Black\, Raj Mohanty\n\nAbstract:\n\nRecent
	ly the new concepts of transverse spin angular momentum and Belinfante spin
	 momentum of evanescent waves have drawn considerable attention. Here\, we 
	investigate these novel physical properties of electromagnetic fields in th
	e context of locally excited surface plasmon polaritons. We demonstrate\, b
	oth analytically and numerically\, that locally excited surface plasmon pol
	aritons possess transverse spin angular momentum and Belinfante momentum wi
	th rich and non-trivial characteristics. We also show that the transverse s
	pin angular momentum of locally excited surface plasmon polaritons leads to
	 the emergence of transverse chiral forces in opposite directions for chira
	l objects of different handedness. The magnitude of such a transverse force
	 is comparable to the optical gradient force and scattering forces. This fi
	nding may pave the way for realization of optical separation of chiral biom
	olecules.\n\n![Hossein](/resources/event-image/1521/6a5ae1b_small)
LOCATION:PHO 901\, 8 Saint Mary's Street\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
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