Optical trapping with superfocused high-M2 laser diode beam

G.S. Sokolovskii; V.V. Dudelev; V. Melissinaki; S.N. Losev; K.K. Soboleva; A.G. Deryagin; V.I. Kuchinskii; M. Farsari; W. Sibbett; E.U. Rafailov

doi:10.1117/12.2078957

Optical trapping with superfocused high-M² laser diode beam

G.S. Sokolovskii, V.V. Dudelev, V. Melissinaki, S.N. Losev, K.K. Soboleva, A.G. Deryagin, V.I. Kuchinskii, M. Farsari, W. Sibbett, E.U. Rafailov

Aston Institute of Photonic Technologies (AiPT)

Research output: Chapter in Book/Published conference output › Conference publication

Abstract

Many applications of high-power laser diodes demand tight focusing. This is often not possible due to the multimode nature of semiconductor laser radiation possessing beam propagation parameter M² values in double-digits. We propose a method of 'interference' superfocusing of high-M² diode laser beams with a technique developed for the generation of Bessel beams based on the employment of an axicon fabricated on the tip of a 100 μm diameter optical fiber with highprecision direct laser writing. Using axicons with apex angle 140º and rounded tip area as small as 10 μm diameter, we demonstrate 2-4 μm diameter focused laser 'needle' beams with approximately 20 μm propagation length generated from multimode diode laser with beam propagation parameter M²=18 and emission wavelength of 960 nm. This is a few-fold reduction compared to the minimal focal spot size of 11 μm that could be achieved if focused by an 'ideal' lens of unity numerical aperture. The same technique using a 160º axicon allowed us to demonstrate few-μm-wide laser 'needle' beams with nearly 100 μm propagation length with which to demonstrate optical trapping of 5-6 μm rat blood red cells in a water-heparin solution. Our results indicate the good potential of superfocused diode laser beams for applications relating to optical trapping and manipulation of microscopic objects including living biological objects with aspirations towards subsequent novel lab-on-chip configurations.

Original language	English
Title of host publication	Laser resonators, microresonators, and beam control XVII
Editors	Alexis V. Kudryashov, Alan H. Paxton, Vladimir S. Ilchenko, Lutz Aschke, Kunihiko Washio
Publisher	SPIE
Number of pages	7
ISBN (Print)	978-1-6284-1433-2
DOIs	https://doi.org/10.1117/12.2078957
Publication status	Published - 3 Mar 2015
Event	Laser Resonators, Microresonators, and Beam Control XVII - San Francisco, CA, United States Duration: 9 Feb 2015 → 12 Feb 2015

Publication series

Name	SPIE proceedings
Publisher	SPIE
Volume	9343
ISSN (Print)	0277-786X

Conference

Conference	Laser Resonators, Microresonators, and Beam Control XVII
Country/Territory	United States
City	San Francisco, CA
Period	9/02/15 → 12/02/15

Bibliographical note

G. S. Sokolovskii ; V. V. Dudelev ; V. Melissinaki ; S. N. Losev ; K. K. Soboleva ; A. G. Deryagin ; V. I. Kuchinskii ; M. Farsari ; W. Sibbett and E. U. Rafailov, "Optical trapping with superfocused high-M2 laser diode beam", Proc. SPIE 9343, Laser Resonators, Microresonators, and Beam Control XVII, 93430Q (March 3, 2015).

Copyright 2015 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

DOI: http://dx.doi.org/10.1117/12.2078957

Keywords

Bessel beams
laser diodes
optical manipulation
superfocusing

Access to Document

10.1117/12.2078957

Optical trapping with superfocused high-M2 laser diode beam
G. S. Sokolovskii ; V. V. Dudelev ; V. Melissinaki ; S. N. Losev ; K. K. Soboleva ; A. G. Deryagin ; V. I. Kuchinskii ; M. Farsari ; W. Sibbett and E. U. Rafailov, "Optical trapping with superfocused high-M2 laser diode beam", Proc. SPIE 9343, Laser Resonators, Microresonators, and Beam Control XVII, 93430Q (March 3, 2015). Copyright 2015 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. DOI: http://dx.doi.org/10.1117/12.2078957
Final published version, 461 KB

http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=2194909

Cite this

Sokolovskii, G. S., Dudelev, V. V., Melissinaki, V., Losev, S. N., Soboleva, K. K., Deryagin, A. G., Kuchinskii, V. I., Farsari, M., Sibbett, W., & Rafailov, E. U. (2015). Optical trapping with superfocused high-M² laser diode beam. In A. V. Kudryashov, A. H. Paxton, V. S. Ilchenko, L. Aschke, & K. Washio (Eds.), Laser resonators, microresonators, and beam control XVII Article 93430Q (SPIE proceedings; Vol. 9343). SPIE. https://doi.org/10.1117/12.2078957

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abstract = "Many applications of high-power laser diodes demand tight focusing. This is often not possible due to the multimode nature of semiconductor laser radiation possessing beam propagation parameter M2 values in double-digits. We propose a method of 'interference' superfocusing of high-M2 diode laser beams with a technique developed for the generation of Bessel beams based on the employment of an axicon fabricated on the tip of a 100 μm diameter optical fiber with highprecision direct laser writing. Using axicons with apex angle 140º and rounded tip area as small as 10 μm diameter, we demonstrate 2-4 μm diameter focused laser 'needle' beams with approximately 20 μm propagation length generated from multimode diode laser with beam propagation parameter M2=18 and emission wavelength of 960 nm. This is a few-fold reduction compared to the minimal focal spot size of 11 μm that could be achieved if focused by an 'ideal' lens of unity numerical aperture. The same technique using a 160º axicon allowed us to demonstrate few-μm-wide laser 'needle' beams with nearly 100 μm propagation length with which to demonstrate optical trapping of 5-6 μm rat blood red cells in a water-heparin solution. Our results indicate the good potential of superfocused diode laser beams for applications relating to optical trapping and manipulation of microscopic objects including living biological objects with aspirations towards subsequent novel lab-on-chip configurations.",

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note = "G. S. Sokolovskii ; V. V. Dudelev ; V. Melissinaki ; S. N. Losev ; K. K. Soboleva ; A. G. Deryagin ; V. I. Kuchinskii ; M. Farsari ; W. Sibbett and E. U. Rafailov, {"}Optical trapping with superfocused high-M2 laser diode beam{"}, Proc. SPIE 9343, Laser Resonators, Microresonators, and Beam Control XVII, 93430Q (March 3, 2015). Copyright 2015 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. DOI: http://dx.doi.org/10.1117/12.2078957; Laser Resonators, Microresonators, and Beam Control XVII ; Conference date: 09-02-2015 Through 12-02-2015",

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doi = "10.1117/12.2078957",

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editor = "Kudryashov, {Alexis V.} and Paxton, {Alan H.} and Ilchenko, {Vladimir S.} and Lutz Aschke and Kunihiko Washio",

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Sokolovskii, GS, Dudelev, VV, Melissinaki, V, Losev, SN, Soboleva, KK, Deryagin, AG, Kuchinskii, VI, Farsari, M, Sibbett, W & Rafailov, EU 2015, Optical trapping with superfocused high-M² laser diode beam. in AV Kudryashov, AH Paxton, VS Ilchenko, L Aschke & K Washio (eds), Laser resonators, microresonators, and beam control XVII., 93430Q, SPIE proceedings, vol. 9343, SPIE, Laser Resonators, Microresonators, and Beam Control XVII, San Francisco, CA, United States, 9/02/15. https://doi.org/10.1117/12.2078957

Optical trapping with superfocused high-M² laser diode beam. / Sokolovskii, G.S.; Dudelev, V.V.; Melissinaki, V. et al.
Laser resonators, microresonators, and beam control XVII. ed. / Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko; Lutz Aschke; Kunihiko Washio. SPIE, 2015. 93430Q (SPIE proceedings; Vol. 9343).

Research output: Chapter in Book/Published conference output › Conference publication

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AU - Dudelev, V.V.

AU - Melissinaki, V.

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AU - Soboleva, K.K.

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N2 - Many applications of high-power laser diodes demand tight focusing. This is often not possible due to the multimode nature of semiconductor laser radiation possessing beam propagation parameter M2 values in double-digits. We propose a method of 'interference' superfocusing of high-M2 diode laser beams with a technique developed for the generation of Bessel beams based on the employment of an axicon fabricated on the tip of a 100 μm diameter optical fiber with highprecision direct laser writing. Using axicons with apex angle 140º and rounded tip area as small as 10 μm diameter, we demonstrate 2-4 μm diameter focused laser 'needle' beams with approximately 20 μm propagation length generated from multimode diode laser with beam propagation parameter M2=18 and emission wavelength of 960 nm. This is a few-fold reduction compared to the minimal focal spot size of 11 μm that could be achieved if focused by an 'ideal' lens of unity numerical aperture. The same technique using a 160º axicon allowed us to demonstrate few-μm-wide laser 'needle' beams with nearly 100 μm propagation length with which to demonstrate optical trapping of 5-6 μm rat blood red cells in a water-heparin solution. Our results indicate the good potential of superfocused diode laser beams for applications relating to optical trapping and manipulation of microscopic objects including living biological objects with aspirations towards subsequent novel lab-on-chip configurations.

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