Compact sub-micron focused laser beam using integrated Bessel phase control

J. Justice; P. Lambkin; B. Roycroft; B. Corbett

doi:10.1117/12.605685

Compact sub-micron focused laser beam using integrated Bessel phase control

University College Cork

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

Abstract

We report the integration of phase gratings directly onto the surface of red vertical cavity surface emitting lasers (VCSELs) by Focused Ion Beam etching. Gratings have been used to generate quasi Bessel beams. The fabricated devices show that a diffraction limited central spot can be formed above the surface of the device. The narrow spot has a full width at half maximum of 0.5μm at a distance of 2μm above the VCSEL surface. The compact device can be formed in arrays and can be considered for a large number of sensing applications such as an optical probe for biophotonics and in optical recording systems.

Original language	English
Article number	28
Pages (from-to)	165-173
Number of pages	9
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	5824
DOIs	https://doi.org/10.1117/12.605685
Publication status	Published - 2005
Event	Opto-Ireland 2005: Nanotechnology and Nanophotonics - Dublin, Ireland Duration: 5 Apr 2005 → 6 Apr 2005

Keywords

Diffractive Optical Elements (DOE)
Focused Ion Beam (FIB)
VCSEL

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10.1117/12.605685

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title = "Compact sub-micron focused laser beam using integrated Bessel phase control",

abstract = "We report the integration of phase gratings directly onto the surface of red vertical cavity surface emitting lasers (VCSELs) by Focused Ion Beam etching. Gratings have been used to generate quasi Bessel beams. The fabricated devices show that a diffraction limited central spot can be formed above the surface of the device. The narrow spot has a full width at half maximum of 0.5μm at a distance of 2μm above the VCSEL surface. The compact device can be formed in arrays and can be considered for a large number of sensing applications such as an optical probe for biophotonics and in optical recording systems.",

keywords = "Diffractive Optical Elements (DOE), Focused Ion Beam (FIB), VCSEL",

author = "J. Justice and P. Lambkin and B. Roycroft and B. Corbett",

year = "2005",

doi = "10.1117/12.605685",

language = "English",

volume = "5824",

pages = "165--173",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

issn = "0277-786X",

publisher = "SPIE",

note = "Opto-Ireland 2005: Nanotechnology and Nanophotonics ; Conference date: 05-04-2005 Through 06-04-2005",

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TY - JOUR

T1 - Compact sub-micron focused laser beam using integrated Bessel phase control

AU - Justice, J.

AU - Lambkin, P.

AU - Roycroft, B.

AU - Corbett, B.

PY - 2005

Y1 - 2005

N2 - We report the integration of phase gratings directly onto the surface of red vertical cavity surface emitting lasers (VCSELs) by Focused Ion Beam etching. Gratings have been used to generate quasi Bessel beams. The fabricated devices show that a diffraction limited central spot can be formed above the surface of the device. The narrow spot has a full width at half maximum of 0.5μm at a distance of 2μm above the VCSEL surface. The compact device can be formed in arrays and can be considered for a large number of sensing applications such as an optical probe for biophotonics and in optical recording systems.

AB - We report the integration of phase gratings directly onto the surface of red vertical cavity surface emitting lasers (VCSELs) by Focused Ion Beam etching. Gratings have been used to generate quasi Bessel beams. The fabricated devices show that a diffraction limited central spot can be formed above the surface of the device. The narrow spot has a full width at half maximum of 0.5μm at a distance of 2μm above the VCSEL surface. The compact device can be formed in arrays and can be considered for a large number of sensing applications such as an optical probe for biophotonics and in optical recording systems.

KW - Diffractive Optical Elements (DOE)

KW - Focused Ion Beam (FIB)

KW - VCSEL

UR - https://www.scopus.com/pages/publications/27644470916

U2 - 10.1117/12.605685

DO - 10.1117/12.605685

M3 - Article

AN - SCOPUS:27644470916

SN - 0277-786X

VL - 5824

SP - 165

EP - 173

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

M1 - 28

T2 - Opto-Ireland 2005: Nanotechnology and Nanophotonics

Y2 - 5 April 2005 through 6 April 2005

ER -

Compact sub-micron focused laser beam using integrated Bessel phase control

Abstract

Keywords

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