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TECHNICAL PROGRAM WEDNESDAY 26 SEPTEMBER <strong>2012</strong><br />
HARBOUR ROOM B GRAND BALLROOM B GRAND BALLROOM C GRAND BALLROOM E<br />
WB3 9:15 AM - 9:30 AM<br />
Instantaneous Phase Conjugation at mW<br />
Pump Power based on Backward<br />
Difference-Frequency Generation,<br />
Y. J. Ding, Lehigh University, Bethlehem, PA,<br />
USA<br />
Instantaneous phase conjugation based on<br />
backward difference-frequency generation in a<br />
second-order nonlinear medium is proposed.<br />
A reflectivity of approaching 100% is achievable<br />
from a 1 mW pump laser.<br />
WB4 9:30 AM - 9:45 AM<br />
Optical Parametric Oscillator<br />
Longitudinal Modes Suppression Based<br />
on Smith Predictor Control Scheme,<br />
A. Salehiomran, R. Modirnia, B. Boulet and<br />
M. Rochette, McGill University, Montréal, QC,<br />
Canada<br />
Fiber optic parametric oscillators are inherently<br />
mulimode and thus relatively noisy, due to<br />
relatively long resonant cavity length. We<br />
propose to use a Smith predictor control scheme<br />
to drastically suppress longitudinal modes.<br />
WC3 9:30 AM - 9:45 AM<br />
Characteristics of InGaN Quantum Wells<br />
Light-Emitting Diodes with Thin AlGaInN<br />
Barrier Layers, G. Liu, J. Zhang, C. K. Tan and<br />
N. Tansu, Lehigh University, Bethlehem, PA, USA<br />
The characteristics of InGaN quantum wells lightemitting<br />
diodes with thin large bandgap AlGaInN<br />
barriers were analyzed with taking into account<br />
the carrier transport effect, which resulted in<br />
efficiency-droop suppression.<br />
WD3 9:15 AM - 9:30 AM<br />
Silicon Photonic Crystal Microcavity<br />
Biosensors for Label Free Highly<br />
Sensitive and Specific Lung Cancer<br />
Detection, W.-C. Lai, University of Texas at<br />
Austin, Austin, TX, USA, S. Chakravarty, Omega<br />
Optics Inc., Austin, TX, USA, Y. Zou, University<br />
of Texas at Austin, Austin, TX, USA,<br />
H. A. A. Drabkin, R. M. M. Gemmill,<br />
G. R. R. Simon, S. H. H. Chin, Medical<br />
University of South Carolina, Charleston, SC,<br />
USA and R. T. Chen, University of Texas at<br />
Austin, Austin, TX, USA<br />
We experimentally detect lung cancer cell lysates<br />
with high sensitivity down to 2 cells per microliter<br />
with silicon based photonic crystal<br />
microcavity sensors. Label free specificity is<br />
achieved via sandwiched assays and simultaneous<br />
multiplexed detection.<br />
WD4 9:30 AM - 9:45 AM<br />
Integrated Differential Pressure Sensor<br />
in Silicon-on-Insulator, E. Hallynck and<br />
P. Bienstman, Ghent University, Gent, Belgium<br />
We have fabricated and characterized a compact<br />
integrated optical pressure sensor in silicon-oninsulator.<br />
Measurements have shown that<br />
spectral features in our device can shift up to<br />
1585 pm going from -20 to 80 kPa.<br />
WB5 9:45 AM - 10:00 AM<br />
Efficient Conversion Between Counter-<br />
Propagating Fundamental and<br />
High-Order Modes in Optical Fiber with<br />
Tilted Gratings Being Incorporated for<br />
Applications in Nonlinear Optics, D. Li,<br />
Y. J. Ding, Lehigh University, Bethlehem, PA,<br />
USA, I. B. Zotova, ArkLight, Center Valley, PA,<br />
USA and N. S. Prasad, NASA Langley Research<br />
Center, Hampton, VA, USA<br />
We show that it is feasible to achieve efficient<br />
conversion between the fundamental and highorder<br />
modes propagating in a multimode optical<br />
fiber containing reflective singly-tilted gratings.<br />
WC4 9:45 AM - 10:00 AM<br />
FDTD Modeling of InGaN-Based Light-<br />
Emitting Diodes with Microsphere<br />
Arrays, P. Zhu, J. Zhang, G. Liu and N. Tansu,<br />
Lehigh University, Bethlehem, PA, USA<br />
The light extraction efficiency of InGaN lightemitting<br />
diodes employing microsphere arrays<br />
with different refractive indices and diameters<br />
were studied, and the use of anatase TiO 2 microsphere<br />
arrays resulted in 2.4-times increase in<br />
light extraction efficiency.<br />
WD5 9:45 AM - 10:00 AM<br />
Multiplexed Gas Sensing Based on<br />
Raman Spectroscopy in Photonic Crystal<br />
Fiber, X. Yang, A. S. P. Chang, Lawrence<br />
Livermore National Laboratory, Livermore, CA,<br />
USA, B. Chen, C. Gu, University of California -<br />
Santa Cruz, Santa Cruz, CA, USA and<br />
T. C. Bond, Lawrence Livermore National<br />
Laboratory, Livermore, CA, USA<br />
We present the highly-sensitive Raman detection<br />
of various gases (nitrogen, oxygen, carbon<br />
dioxide, toluene, acetone and 1,1,1-<br />
trichloroethane) using a hollow core photonic<br />
crystal fiber probe and demonstrate its multiplexed<br />
gas sensing capability quantitatively.<br />
Page 48<br />
WC5 10:00 AM - 10:15 AM<br />
Directly Color-Tunable Smart Display<br />
based on a CMOS-Controlled Micro-LED<br />
Array, S. Zhang, J. McKendry, Z. Gong,<br />
University of Strathclyde, Glasgow, Scotland, UK,<br />
B. R. Rae, University of Edinburgh, Edinburgh,<br />
Scotland, UK, S. Watson, University of Glasgow,<br />
Glasgow, Scotland, UK, E. Xie, P. Tian,<br />
E. Richardson, E. Gu, University of Strathclyde,<br />
Glasgow, Scotland, UK, Z. Chen, G. Zhang,<br />
Peking University, Beijing, China, A. E. Kelly,<br />
University of Glasgow, Glasgow, Scotland, UK,<br />
R. K. Henderson, University of Edinburgh,<br />
Edinburgh, Scotland, UK and M. D. Dawson,<br />
University of Strathclyde, Glasgow, Scotland, UK<br />
We demonstrate a CMOS-controlled colortunable<br />
micro-display system based on a
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