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<!--StartFragment--><p class="MsoTitle" style="text-align: center;margin-right: -0.5in; "><b style="mso-bidi-font-weight:
normal"><span style="font-family:"Times New Roman""><font class="Apple-style-span" size="4">Seminar on</font></span></b><b style="mso-bidi-font-weight:
normal"><span style="font-family: 'Times New Roman'; "><o:p><font class="Apple-style-span" size="4"> </font></o:p></span></b></p><p class="MsoNormal" align="center" style="text-align:center"><font class="Apple-style-span" size="4"><b style="mso-bidi-font-weight:
normal"><span style="letter-spacing: 1.5pt; ">Modern Optics and Spectroscopy</span></b></font></p><div><br></div><p class="MsoNormal" align="center" style="margin-right:-13.5pt;text-align:center"><b style="mso-bidi-font-weight:normal"><i style="mso-bidi-font-style:normal"><font class="Apple-style-span" size="4">Quantitative phase
microscopy in thin <o:p></o:p></font></i></b></p><p class="MsoNormal" align="center" style="margin-right:-13.5pt;text-align:center"><b style="mso-bidi-font-weight:normal"><i style="mso-bidi-font-style:normal"><font class="Apple-style-span" size="4">and thick samples<o:p></o:p></font></i></b></p><p class="MsoNormal" align="center" style="text-align:center"><b style="mso-bidi-font-weight:
normal"><i style="mso-bidi-font-style:normal"><span style="letter-spacing: 1pt; "><o:p><font class="Apple-style-span" size="4"> </font></o:p></span></i></b></p><p class="MsoNormal" align="center" style="text-align:center"><font class="Apple-style-span" size="4"><b style="mso-bidi-font-weight:
normal">Jerome Mertz</b><span style="letter-spacing: 1pt; ">,<o:p></o:p></span></font></p><p class="MsoNormal" align="center" style="text-align:center"><span style="letter-spacing: 1pt; "><font class="Apple-style-span" size="4">Boston
University<o:p></o:p></font></span></p><p class="MsoNormal" align="center" style="text-align:center"><span style="letter-spacing: 1pt; "><o:p><font class="Apple-style-span" size="4">Tuesday September 25, 2012 </font></o:p></span></p><p class="MsoNormal" align="center" style="text-align:center"><span class="Apple-style-span" style="font-size: large; "><br><span class="Apple-style-span" style="letter-spacing: 1px;">12:00pm- 1:00pm</span></span><span class="Apple-style-span" style="font-family: Times; font-size: large; "> </span></p><p class="MsoNormal" style="text-align: center;"><span style="font-family:Helvetica;mso-bidi-font-family:
Helvetica"><font class="Apple-style-span" size="4">Phase contrast microscopy has benefited from a resurgence in interest
over the past decade, particularly in the development of methods that are
quantitative and fast. I will present two such methods. The first is
called Partitioned Aperture Wavefront (PAW) imaging, and is based on a
transmission configuration with oblique detection. PAW imaging has the
advantage of being fast (single-shot), achromatic (works with white light),
light efficient (works with extended sources), and quantitative. The second
method is called Oblique Back-illumination Microscopy (OBM), and is based on a
reflection configuration. OBM provides images similar to Differential
Interference Contrast (DIC) microscopy, but with the advantage that it can be
applied to arbitrarily thick samples. As such, OBM is suitable for
endomicroscopy applications, which I will demonstrate with a fiber-bundle-based
prototype operating at near video rate. Both techniques are simple and easy to
implement.</font></span></p><p class="MsoNormal" align="center" style="text-align:center"><font class="Apple-style-span" size="4">Grier Room, MIT Bldg 34-401<o:p></o:p></font></p><p class="MsoNormal" align="center" style="text-align:center"><font class="Apple-style-span" size="4">Refreshments served after
the lecture</font><font class="Apple-style-span" size="6"><o:p></o:p></font></p>
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