Ming C. Wu (Advisor)

Research Advised by Professor Ming C. Wu

Monolithic Piezoelectrically-Actuated MEMS-Tunable VCSEL

Kan Bun Cheng
Albert P. Pisano
Ming C. Wu
2006
Recently there has been intense research in the field of tunable VCSELs due to the increasing needs of all-optical communications. Tunable lasers can provide low-cost and compact solutions for signal routing and switching in dense wavelength division multiplexing (DWDM) networks. It is believed that tunable lasers will play a pivotal role in advancing intelligent optical communications, with applications in all-optical switching as well as other...

Massively Parallel Optical Manipulation of Single Cells, Micro- and Nano-particles on Optoelectronic Devices

Pei-Yu Chiou
Ming C. Wu
Connie J. Chang-Hasnain
Luke P. Lee
2005
The ability to manipulate biological cells and micrometer-scale particles plays an important role in many biological and colloidal science applications. However, conventional manipulation techniques, such as optical tweezers, electrokinetic forces (electrophoresis, dielectrophoresis (DEP), and traveling-wave dielectrophoresis), magnetic tweezers, acoustic traps, and hydrodynamic flows, cannot achieve high resolution and high...

Light-induced Electrokinetics: A path to a versatile micro total analysis system

Justin K. Valley
Ming C. Wu
Michel M. Maharbiz
Amy E. Herr
2011

The micro total analysis system (μTAS) has seen great interest and advances since its definition over two decades ago. By harnessing the fabrication tools of the semiconductor industry and exploiting the unique physical phenomena that dominate at the micro- to nano-scale,these devices aim to address applications ranging from point-of-care diagnostics to pharmaceutical development. A truly versatile μTAS technology platform will enable reconfigurable, parallel, and high...

Integrated Nanoscale Antenna-LED for On-Chip Optical Communication

Seth Fortuna
Ming C. Wu
Eli Yablonovitch
Jie Yao
2017
Traditional semiconductor light emitting diodes (LEDs) have low modulation speed because of long spontaneous emission lifetime. Spontaneous emission in semiconductors (andindeed most light emitters) is an inherently slow process owing to the size mismatch betweenthe dipole length of the optical dipole oscillators responsible for light emission and the wave-length of the emitted light. More simply stated: semiconductors behave as a poor antenna for its own light emission. By coupling a semiconductor at the...

Integrated MEMS Cavity Optomechanical Oscillators for Wireless and Optical Communications

Turker Beyazoglu
Clark T.-C. Nguyen
Ming C. Wu
Liwei Lin
2016
Recent advancements in micro-optical and micro-mechanical resonator technologies haveallowed researchers to exploit coupling between the optical field and mechanical motionin an optical cavity to affect cooling or amplification of mechanical motion. Cooling the mechanical motion of microscale objects has been of high scientific interest, since it facilitates observation and exploration of certain quantum phenomena, e.g., the standard quantum limit of detection. On the other hand, amplification of the mechanical motion...

Highly Scalable Silicon Photonic Switches Based on Waveguide Crossbar with Movable Waveguide Couplers

Sangyoon Han
Ming C. Wu
Richard S. Muller
Liwei Lin
2016
Fast opticalcircuitswitches (OCS) having a large number of ports can significantly enhance the performance and the efficiency of modern data centers by actively rearranging network patternsCommercially available optical switches typically operate with the use of moving mirror arrays. These switches can have port counts...

Evaporation-Driven Fast Crystallization of 3D Micro- and Nano-particle Assemblies via Micro Mechanical Systems

Sun Choi
Albert P. Pisano
Tarek I. Zohdi
Liwei Lin
Ming C. Wu
2012
Fast crystallization of solid-phase materials in liquid medium is a crucial prerequisite to achieve the aims of a number of applications for micro-, nanomanufacturing, bio-chemical sensing technology and fundamental colloidal scienceCorresponding mechanical systems for those applications are required to accommodate and take advantage of the virtue of multi-phase (liquid, gas, and solid phases) flow phenomenon to accomplish “crystallization...

Chip-scale Lidar

Behnam Behroozpour Baghmisheh
Bernhard E. Boser
Ming C. Wu
Liwei Lin
2017

The superiority of lidar compared to radiofrequency and ultrasonic solutions in terms of depth and lateral resolution has been known for decades. In recent years, both application pull such as 3D vision for robotics, rapid prototyping, selfdriving cars, and medical diagnostics, as well as technology developments such as integrated optics and tunable lasers have resulted in new activities

...

BPN374: Optoelectronic Tweezers (OET), Dielectrophoresis (DEP), Embryo

Justin Valley
2010

We are developing a novel technique using Optoelectronic Tweezers (OET) to quantitatively assess the morphological state and health of B6D2F1 mouse embryos. One major factor involved in successful in-vitro fertilization (IVF) is the selection of healthy embryos for implantation. A major indicator of a healthy embryo is its ability to develop quickly relative to its peers. Currently, embryos are selected by an experienced technician who uses solely qualitative observations. A method to quantitatively discern embryos which reach certain developmental stages faster than others could...

BPN397: Electrothermally-Actuated Free-Space Board-To-Board Optical Interconnect With Zero Power Hold

Jeffrey B. Chou
K. Yu
2010

Free-space optical interconnect using arrays of vertical-cavity surface-emitting lasers (VCSELs) and photoreceivers can significantly increase the board-to-board interconnect bandwidth, relieving the bottleneck of traditional backplane systems in computer servers. However, critical alignment errors, due to insertion variation, have prevented the deployment of such a technology. We present an adaptive free-space optical interconnect using electrothermal MEMS rotational lens scanners with zero power hold to circumvent such difficulties. Previous groups have attempted to adaptively...