- Spectral-domain optical coherence phase microscopy for quantitative phase-contrast imagingChulmin Joo
Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
Opt Lett 30:2131-3. 2005..We demonstrate subnanometer level path-length sensitivity and present images obtained on reflection from a known phase object and human epithelial cheek cells...
- Spectral-domain optical coherence phase and multiphoton microscopyChulmin Joo
Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge 02139, USA
Opt Lett 32:623-5. 2007..We also demonstrate the visualization of actin filaments in a fixed cell specimen, which is confirmed by simultaneous multiphoton fluorescence imaging...
- Spectral-domain optical coherence reflectometric sensor for highly sensitive molecular detectionChulmin Joo
Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
Opt Lett 32:2426-8. 2007..We present subfemtomole detection sensitivity for etching of SiO(2) molecules and demonstrate its application as a biosensor by measuring biotin-streptavidin binding in a microfluidic device...
- Depth-resolved measurement of transient structural changes during action potential propagationTaner Akkin
Harvard Medical School and Wellman Center for Photomedicine at Massachusetts General Hospital, Boston, Massachusetts 02114, USA
Biophys J 93:1347-53. 2007..Noncontact optical measurements demonstrate nanometer-scale transient movement on a 1-ms timescale associated with action potential propagation in crayfish and lobster nerves...