izpis_h1_title_alt

Complex field-induced nematic defect structures in Laguerre-Gaussian optical tweezers : invited paper
Žumer, Slobodan (Author), Porenta, Tine (Author), Ravnik, Miha (Author)

URLURL - Presentation file, Visit http://spie.org/x648.html?product_id=930450 This link opens in a new window

Abstract
Complex optical field-induced defect structures are presented in nematic and chiral nematic liquid crystals, as imprinted by Laguerre-Gaussian (LG) laser beams. Our modeling study is based on the phenomenological free energy approach, which dielectrically couples the nematic optical axis with the polarization of the LG beams. The symmetry of the presented structures proves to be conditioned by the beam helical indices. The beam intensity, strength of the nematic elastic constant, and local intensity-induced control of the nematic order via absorption of the light are demonstrated as possible mechanisms for producing, imprinting, and tuning of the field-induced complex defect structures in achiral and chiral nematics.

Language:English
Keywords:liquid crystals, colloids, laser tweezers, Laguerre-Gaussian beam, nematic defect structure, optical imprinting
Work type:Not categorized (r6)
Tipology:1.06 - Published Scientific Conference Contribution (invited lecture)
Organization:FMF - Faculty of Mathematics and Physics
Year:2012
Number of pages:7 str.
UDC:544.25
DOI:10.1117/12.930450 Link is opened in a new window
COBISS.SI-ID:2506084 Link is opened in a new window
Views:782
Downloads:219
Metadata:XML RDF-CHPDL DC-XML DC-RDF
 
Average score:(0 votes)
Your score:Voting is allowed only to logged in users.
:
Share:AddThis
AddThis uses cookies that require your consent. Edit consent...

Similar documents

Similar works from RUL:
Similar works from other Slovenian collections:

Comments

Leave comment

You have to log in to leave a comment.

Comments (0)
0 - 0 / 0
 
There are no comments!

Back