Sun Sun


Department of Chemistry & Biochemistry
The University of Texas at Austin
1 University Station A5300
Austin, TX 78712-0165





















Contact Information


Office: WEL: 3.120
Phone: 471-0872

Lab


Office: WEL 3.138
Phone:
Fax:

Sang-Hyun Lim


shlim@mail.utexas.edu
Assistant Professor, Faculty


Research Group


Sang-Hyun Lim Research Group

Education


BS, Seoul National University, 1994
PhD, University of Illinois at Urbana-Champaign, 2003
MS, Seoul National University, 1998

Postdoctoral Fellow, University of California, Berkeley 2003-2006



Nonlinear Microscopy and Spectroscopy of Material and Biological Systems.


The focus of the Lim group is the development of novel nonlinear optical imaging and micro-spectroscopy techniques to study complex systems such as proteins in a cell membrane and topological defects in liquid crystals. Of particular interest is CARS (coherent anti-Stokes Raman scattering) microscopy, which emerges as a powerful chemical imaging tool due to its chemical selectivity and high signal sensitivity. We have been developing new CARS microscopy methods that can measure background-free vibrational spectra of microscopic samples. Currently, we are pushing the sensitivity limit of these techniques for material and biological applications.

We are also interested in the director field configurations of liquid crystals and plasmon resonance structures of metal nanoparticles. We study these topics with various linear and nonlinear optical microscopy techniques.

Our current projects are

  1. CARS (Coherent anti-Stokes Raman scattering) microscopy
  2. 3D imaging of director field configurations of liquid crystals
  3. Plasmon resonance at the hot spot of metal nanoparticles
  4. Control and characterization of ultrafast laser pulses for multiphoton microscopy


Representative Publications



J. Sung, B.-C. Chen, S.-H. Lim "Single-beam homodyne SPIDER for multiphoton microscopy" Optics Letter 33, 13 (2008): 1404.

B.-C. Chen, S.-H. Lim "Optimal laser pulse shaping for interferometric multiplex coherent anti-Stokes Raman scattering microscopy" Journal of Physical Chemistry B 112 (2008): 3653.

B.-C. Chen, S.-H. Lim "Characterization of a broadband pulse for phase controlled multiphoton microscopy by single beam SPIDER" Optics Letter 32, 16 (2007): 2411.

S.-H. Lim, A.G. Caster, O. Nicolet, S.R. Leone "Fourier Transformation Spectral Interferometric coherent anti-Stokes Raman scattering (FTSI-CARS) Microscopy" Optics Letter 32, 10 (2007): 1332.