Abstract
Airy beams are of great interest as a result of their unusual characteristics, they are non-diffracting and also propagate along a parabolic path due to the presence of a transversal acceleration component. In this paper the generation of a white light Airy beam is presented, an investigation is also carried out to determine how the properties of an Airy beam change with the wavelength and spatial coherence of the source. A supercontinuum source is used in conjunction with a spatial light modulator to produce the Airy beams. The wavelength dependence study of the Airy beam parameters was carried out by inserting interference filters into the supercontinuum beam path to select each wavelength. The parameters investigated are the deflection coefficient of the Airy beam, b0, this quantifies the parabolic path traveled by the beam; the characteristic length, x0, which is related to the lobe spacing, and lastly the aperture coefficient, a0. The deflection coefficient and the characteristic length were both found to be wavelength dependent. The aperture coefficient did not alter as a result of wavelength, however it was found to be dependent on the spatial coherence, and therefore on the M2 value, of the beam. The other parameters, b0 and x0, are unaffected by the spatial coherence of the source.
| Original language | English |
|---|---|
| Title of host publication | Laser Beam Shaping X |
| DOIs | |
| Publication status | Published - 2009 Nov 18 |
| Event | Laser Beam Shaping X - San Diego, CA, United States Duration: 2009 Aug 3 → 2009 Aug 4 |
Publication series
| Name | Proceedings of SPIE - The International Society for Optical Engineering |
|---|---|
| Volume | 7430 |
| ISSN (Print) | 0277-786X |
Conference
| Conference | Laser Beam Shaping X |
|---|---|
| Country | United States |
| City | San Diego, CA |
| Period | 09/8/3 → 09/8/4 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering
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Supercontinuum Airy beams. / Morris, Jill E.; Mazilu, Michael; Baumgartl, Jörg; Čižmár, Tomáš; Dholakia, Kishan.
Laser Beam Shaping X. 2009. 74300W (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7430).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Supercontinuum Airy beams
AU - Morris, Jill E.
AU - Mazilu, Michael
AU - Baumgartl, Jörg
AU - Čižmár, Tomáš
AU - Dholakia, Kishan
PY - 2009/11/18
Y1 - 2009/11/18
N2 - Airy beams are of great interest as a result of their unusual characteristics, they are non-diffracting and also propagate along a parabolic path due to the presence of a transversal acceleration component. In this paper the generation of a white light Airy beam is presented, an investigation is also carried out to determine how the properties of an Airy beam change with the wavelength and spatial coherence of the source. A supercontinuum source is used in conjunction with a spatial light modulator to produce the Airy beams. The wavelength dependence study of the Airy beam parameters was carried out by inserting interference filters into the supercontinuum beam path to select each wavelength. The parameters investigated are the deflection coefficient of the Airy beam, b0, this quantifies the parabolic path traveled by the beam; the characteristic length, x0, which is related to the lobe spacing, and lastly the aperture coefficient, a0. The deflection coefficient and the characteristic length were both found to be wavelength dependent. The aperture coefficient did not alter as a result of wavelength, however it was found to be dependent on the spatial coherence, and therefore on the M2 value, of the beam. The other parameters, b0 and x0, are unaffected by the spatial coherence of the source.
AB - Airy beams are of great interest as a result of their unusual characteristics, they are non-diffracting and also propagate along a parabolic path due to the presence of a transversal acceleration component. In this paper the generation of a white light Airy beam is presented, an investigation is also carried out to determine how the properties of an Airy beam change with the wavelength and spatial coherence of the source. A supercontinuum source is used in conjunction with a spatial light modulator to produce the Airy beams. The wavelength dependence study of the Airy beam parameters was carried out by inserting interference filters into the supercontinuum beam path to select each wavelength. The parameters investigated are the deflection coefficient of the Airy beam, b0, this quantifies the parabolic path traveled by the beam; the characteristic length, x0, which is related to the lobe spacing, and lastly the aperture coefficient, a0. The deflection coefficient and the characteristic length were both found to be wavelength dependent. The aperture coefficient did not alter as a result of wavelength, however it was found to be dependent on the spatial coherence, and therefore on the M2 value, of the beam. The other parameters, b0 and x0, are unaffected by the spatial coherence of the source.
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U2 - 10.1117/12.826098
DO - 10.1117/12.826098
M3 - Conference contribution
AN - SCOPUS:70449405093
SN - 9780819477200
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Laser Beam Shaping X
ER -