Multiple beam internal structuring of poly(methyl methacrylate)

Dun Liu; Walter Perrie; Zheng Kuang; P. J. Scully; A. Baum; S. Liang; A. Taranu; S. P. Edwardson; E. Fearon; G. Dearden; K. G. Watkins

doi:10.2961/jlmn.2012.02.0014

Multiple beam internal structuring of poly(methyl methacrylate)

Dun Liu
, Walter Perrie
, Zheng Kuang
, P. J. Scully
, A. Baum
, S. Liang
, A. Taranu
, S. P. Edwardson
, E. Fearon
, G. Dearden
, K. G. Watkins

University of Liverpool
Hubei University of Technology
University of Manchester

Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review

2 Citations (Scopus)

Abstract

Spatial light modulator addressed with computer generated holograms is used to diffract femtosecond laser pulses into > 15 parallel beams and focused simultaneously inside poly(methyl methacrylate) (PMMA) for high throughput 3D refractive index modification. Uniform modification throughout the structure is demonstrated and used to create a 19 μm pitch, 5 × 5 × 3.5 mm³ thick volume grating in < 50 minutes with first order Bragg diffraction efficiency > 65%. Thick volume phase gratings are created by carefully stitching filamentary modifications. PMMA shows a remarkable time dependent Δn, related to the photochemistry during and after exposure.

Original language	English
Pages (from-to)	208-211
Number of pages	4
Journal	Journal of Laser Micro Nanoengineering
Volume	7
Issue number	2
DOIs	https://doi.org/10.2961/jlmn.2012.02.0014
Publication status	Published - May 2012
Externally published	Yes

Keywords

Femtosecond laser
PMMA
Refractive index modification
Spatial light modulator
Volume grating

Access to Document

10.2961/jlmn.2012.02.0014

Cite this

@article{a96131ea53864f8bb07220d52de0c543,

title = "Multiple beam internal structuring of poly(methyl methacrylate)",

abstract = "Spatial light modulator addressed with computer generated holograms is used to diffract femtosecond laser pulses into > 15 parallel beams and focused simultaneously inside poly(methyl methacrylate) (PMMA) for high throughput 3D refractive index modification. Uniform modification throughout the structure is demonstrated and used to create a 19 μm pitch, 5 × 5 × 3.5 mm3 thick volume grating in < 50 minutes with first order Bragg diffraction efficiency > 65\%. Thick volume phase gratings are created by carefully stitching filamentary modifications. PMMA shows a remarkable time dependent Δn, related to the photochemistry during and after exposure.",

keywords = "Femtosecond laser, PMMA, Refractive index modification, Spatial light modulator, Volume grating",

author = "Dun Liu and Walter Perrie and Zheng Kuang and Scully, \{P. J.\} and A. Baum and S. Liang and A. Taranu and Edwardson, \{S. P.\} and E. Fearon and G. Dearden and Watkins, \{K. G.\}",

year = "2012",

month = may,

doi = "10.2961/jlmn.2012.02.0014",

language = "English",

volume = "7",

pages = "208--211",

journal = "Journal of Laser Micro Nanoengineering",

issn = "1880-0688",

publisher = "Japan Laser Processing Society",

number = "2",

}

TY - JOUR

T1 - Multiple beam internal structuring of poly(methyl methacrylate)

AU - Liu, Dun

AU - Perrie, Walter

AU - Kuang, Zheng

AU - Scully, P. J.

AU - Baum, A.

AU - Liang, S.

AU - Taranu, A.

AU - Edwardson, S. P.

AU - Fearon, E.

AU - Dearden, G.

AU - Watkins, K. G.

PY - 2012/5

Y1 - 2012/5

N2 - Spatial light modulator addressed with computer generated holograms is used to diffract femtosecond laser pulses into > 15 parallel beams and focused simultaneously inside poly(methyl methacrylate) (PMMA) for high throughput 3D refractive index modification. Uniform modification throughout the structure is demonstrated and used to create a 19 μm pitch, 5 × 5 × 3.5 mm3 thick volume grating in < 50 minutes with first order Bragg diffraction efficiency > 65%. Thick volume phase gratings are created by carefully stitching filamentary modifications. PMMA shows a remarkable time dependent Δn, related to the photochemistry during and after exposure.

AB - Spatial light modulator addressed with computer generated holograms is used to diffract femtosecond laser pulses into > 15 parallel beams and focused simultaneously inside poly(methyl methacrylate) (PMMA) for high throughput 3D refractive index modification. Uniform modification throughout the structure is demonstrated and used to create a 19 μm pitch, 5 × 5 × 3.5 mm3 thick volume grating in < 50 minutes with first order Bragg diffraction efficiency > 65%. Thick volume phase gratings are created by carefully stitching filamentary modifications. PMMA shows a remarkable time dependent Δn, related to the photochemistry during and after exposure.

KW - Femtosecond laser

KW - PMMA

KW - Refractive index modification

KW - Spatial light modulator

KW - Volume grating

UR - https://www.scopus.com/pages/publications/84869838290

U2 - 10.2961/jlmn.2012.02.0014

DO - 10.2961/jlmn.2012.02.0014

M3 - Article

SN - 1880-0688

VL - 7

SP - 208

EP - 211

JO - Journal of Laser Micro Nanoengineering

JF - Journal of Laser Micro Nanoengineering

IS - 2

ER -

Multiple beam internal structuring of poly(methyl methacrylate)

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this