Brillouin microscopy is an emerging imaging modality that provides fundamental information about mechanical properties of media in a non-contact manner. To date, low numerical aperture (NA) optics have been used, due to noticeable angular broadening of the Brillouin spectrum at higher NAs. In this work, we investigate theoretically and experimentally the dependence of spectral broadening effects in Brillouin imaging on system NA, for both and scattering geometries. Lineshape deformations and broadening are found to be minimised in a backscattering geometry, hence paving the way for high resolution in-vivo mechanical imaging.
REFERENCES
1.
2.
R. J.
Angel
, J. M.
Jackson
, H. J.
Reichmann
, and S.
Speziale
, Eur. J. Mineral.
21
, 525
(2009
).3.
T. R.
Parker
, M.
Farhadiroushan
, V. A.
Handerek
, and A. J.
Roger
, IEEE Photon. Technol. Lett.
9
, 979
(1997
).4.
J.
Smith
, A.
Brown
, M.
DeMerchant
, and X.
Bao
, Appl. Opt.
38
, 5372
(1999
).5.
G.
Scarcelli
, P.
Kim
, and S. H.
Yun
, Biophys. J.
101
, 1539
(2011
).6.
S. A.
Lee
, D. A.
Pinnick
, S. M.
Lindsay
, and R. C.
Hanson
, Phys. Rev. B
34
, 2799
(1986
).7.
S. K.
Satija
and C.
Wang
, Solid State Commun.
28
, 617
(1978
).8.
K. J.
Koski
, P.
Akhenblit
, K.
McKiernan
, and J. L.
Yarger
, Nature Mater.
12
, 262
–267
(2013
).9.
K. J.
Koski
and J. L.
Yarger
, Appl. Phys. Lett.
87
, 061903
(2005
).10.
11.
S. A.
Diddams
, L.
Hollberg
, and V.
Mbele
, Nature
445
, 627
(2007
).12.
G.
Scarcelli
and S. H.
Yun
, Opt. Express
19
, 10913
(2011
).13.
G.
Scarcelli
and S. H.
Yun
, Nat. Photonics
2
, 39
(2008
).14.
W. F.
Oliver
, C. A.
Herbst
, S. M.
Lindsay
, and G. H.
Wolf
, Rev. Sci. Instrum.
63
, 1884
(1992
).15.
J. H. W.
Leidecker
and J. T.
LaMacchia
, J. Acoust. Soc. Am.
43
, 143
(1968
).16.
M. G.
Beghi
, F.
Di Fonzo
, S.
Pietralunga
, C.
Ubaldi
, and C. E.
Bottani
, Rev. Sci. Instrum.
82
, 053107
(2011
).17.
M. G.
Beghi
, A. G.
Every
, and P. V.
Zinin
, Ultrasonic Nondestructive Evaluation: Engineering and Biological Material Characterization
(CRC Press
, Boca Raton
, 2004
).18.
M.
Damzen
, Stimulated Brillouin Scattering: Fundamentals and Applications
(IOP Publishing
, Bristol
, 2003
).19.
E.
Rat
, M.
Foret
, G.
Massiera
, R.
Vialla
, M.
Arai
, R.
Vacher
, and E.
Courtens
, Phys. Rev. B
72
, 214204
(2005
).20.
M. R.
Foreman
and P.
Török
, J. Mod. Opt.
58
, 339
(2011
).21.
H. G.
Danielmeyer
, J. Acoust. Soc. Am.
47
, 151
(1970
).© 2013 AIP Publishing LLC.
2013
AIP Publishing LLC
You do not currently have access to this content.
