Large elliptical nanostructured gradient-index microlens

Ryszard Buczynski; Adam Filipkowski; Andrew John Waddie; Bernard Piechal; Jedrzej Nowosielski; Dariusz Pysz; Ryszard Stepien; Mohammad R. Taghizadeh

doi:10.1364/AO.55.000089

Large elliptical nanostructured gradient-index microlens

Ryszard Buczynski^*, Adam Filipkowski, Andrew John Waddie, Bernard Piechal, Jedrzej Nowosielski, Dariusz Pysz, Ryszard Stepien, Mohammad R. Taghizadeh

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

We demonstrate the feasibility of the development of a gradient-index elliptical microlens with a size of 75 x 125 mu m using nanostructured glass technology. The gradient index is obtained by means of a discrete internal structure composed of two glasses with feature sizes much smaller than the wavelength of the incident light. A modified photonic crystal fiber-drawing technique is used for the lens fabrication. The elliptical shape of the lens is obtained by a novel final drawing stage where the spherically symmetric lens preform is drawn into an elliptical form by collapsing two large air holes placed in the preform during assembly. The effective focal lengths of 160 and 260 mu m for the orthogonal axes are obtained experimentally for the fabricated lens, and show good agreement with those predicted by the effective medium theory and the full-wave beam propagation simulations. (C) 2015 Optical Society of America

Original language	English
Pages (from-to)	89-94
Number of pages	6
Journal	Applied Optics
Volume	55
Issue number	1
DOIs	https://doi.org/10.1364/AO.55.000089
Publication status	Published - 1 Jan 2016

Keywords

LENS
DESIGN
FABRICATION
DIODES
ARRAY

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10.1364/AO.55.000089

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title = "Large elliptical nanostructured gradient-index microlens",

abstract = "We demonstrate the feasibility of the development of a gradient-index elliptical microlens with a size of 75 x 125 mu m using nanostructured glass technology. The gradient index is obtained by means of a discrete internal structure composed of two glasses with feature sizes much smaller than the wavelength of the incident light. A modified photonic crystal fiber-drawing technique is used for the lens fabrication. The elliptical shape of the lens is obtained by a novel final drawing stage where the spherically symmetric lens preform is drawn into an elliptical form by collapsing two large air holes placed in the preform during assembly. The effective focal lengths of 160 and 260 mu m for the orthogonal axes are obtained experimentally for the fabricated lens, and show good agreement with those predicted by the effective medium theory and the full-wave beam propagation simulations. (C) 2015 Optical Society of America",

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T1 - Large elliptical nanostructured gradient-index microlens

AU - Buczynski, Ryszard

AU - Filipkowski, Adam

AU - Waddie, Andrew John

AU - Piechal, Bernard

AU - Nowosielski, Jedrzej

AU - Pysz, Dariusz

AU - Stepien, Ryszard

AU - Taghizadeh, Mohammad R.

PY - 2016/1/1

Y1 - 2016/1/1

N2 - We demonstrate the feasibility of the development of a gradient-index elliptical microlens with a size of 75 x 125 mu m using nanostructured glass technology. The gradient index is obtained by means of a discrete internal structure composed of two glasses with feature sizes much smaller than the wavelength of the incident light. A modified photonic crystal fiber-drawing technique is used for the lens fabrication. The elliptical shape of the lens is obtained by a novel final drawing stage where the spherically symmetric lens preform is drawn into an elliptical form by collapsing two large air holes placed in the preform during assembly. The effective focal lengths of 160 and 260 mu m for the orthogonal axes are obtained experimentally for the fabricated lens, and show good agreement with those predicted by the effective medium theory and the full-wave beam propagation simulations. (C) 2015 Optical Society of America

AB - We demonstrate the feasibility of the development of a gradient-index elliptical microlens with a size of 75 x 125 mu m using nanostructured glass technology. The gradient index is obtained by means of a discrete internal structure composed of two glasses with feature sizes much smaller than the wavelength of the incident light. A modified photonic crystal fiber-drawing technique is used for the lens fabrication. The elliptical shape of the lens is obtained by a novel final drawing stage where the spherically symmetric lens preform is drawn into an elliptical form by collapsing two large air holes placed in the preform during assembly. The effective focal lengths of 160 and 260 mu m for the orthogonal axes are obtained experimentally for the fabricated lens, and show good agreement with those predicted by the effective medium theory and the full-wave beam propagation simulations. (C) 2015 Optical Society of America

KW - LENS

KW - DESIGN

KW - FABRICATION

KW - DIODES

KW - ARRAY

U2 - 10.1364/AO.55.000089

DO - 10.1364/AO.55.000089

M3 - Article

SN - 1559-128X

VL - 55

SP - 89

EP - 94

JO - Applied Optics

JF - Applied Optics

IS - 1

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Large elliptical nanostructured gradient-index microlens

Abstract

Keywords

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