66 citations · 297 across the 10 of their papers we have counts for
10 papers
On the dual-cone nature of the conical refraction phenomenon
Alex Turpin, Yury V. Loiko, Todor K. Kalkandjiev +2
In conical refraction (CR), a focused Gaussian input beam passing through a biaxial crystal and parallel to one of the optic axes is transformed into a pair of concentric bright ri…
Conical refraction healing after partially blocking the input beam
Alex Turpin, Yury V. Loiko, Todor K. Kalkandjiev +2
In conical refraction, when a focused Gaussian beam passes along one of the optic axes of a biaxial crystal it is transformed into a pair of concentric bright rings at the focal pl…
Light propagation in biaxial crystals
Alex Turpin, Yury V. Loiko, Todor K. Kalkandjiev +1
We present a formalism able to predict the transformation of light beams passing through biaxial crystals. We use this formalism to show both theoretically and experimentally the t…
Polarization tailored novel vector beams based on conical refraction
A. Turpin, Yu. V. Loiko, A. Peinado +4
Coherent vector beams with involved states of polarization (SOP) are widespread in the literature, having applications in laser processing, super-resolution imaging and particle tr…
Blue-detuned optical ring trap for Bose-Einstein condensates based on conical refraction
A. Turpin, J. Polo, Yu. V. Loiko +6
We present a novel approach for the optical manipulation of neutral atoms in annular light structures produced by the phenomenon of conical refraction occurring in biaxial optical…
Type I and type II second harmonic generation of conically refracted beams
Alex Turpin, Yury V. Loiko, Todor K. Kalkandjiev +3
Type I and type II second harmonic generation (SHG) of a beam transformed by the conical refraction phenomenon are presented. We show that, for type I, the second harmonic intensit…
Wave-vector and polarization dependence of conical refraction
A. Turpin, Yu. V. Loiko, T. K. Kalkandjiev +2
We experimentally address the wave-vector and polarization dependence of the internal conical refraction phenomenon by demonstrating that an input light beam of elliptical transver…
Multiple rings formation in cascaded conical refraction
A. Turpin, Yu. V. Loiko. T. K. Kalkandjiev, J. Mompart
When a light beam passes through a cascade of biaxial crystals with aligned optic axes, the resulting transverse intensity pattern consists of multiple concentric rings. We provide…
Generating a three dimensional dark focus from a single conically refracted light beam
Yu. V. Loiko, A. Turpin, T. K. Kalkandjiev +2
We report here the generation of a three dimensional dark focus from a single focused monochromatic Gaussian beam that undergoes conical refraction when it propagates along one of…
Free Space Optical Polarization De-multiplexing and Multiplexing by means of Conical Refraction
Alex Turpin, Yurii Loiko, Todor K. Kalkandjiev +1
Polarization de-multiplexing and multiplexing by means of conical refraction is proposed to increase the channel capacity for free space optical communication applications. The pro…