Ming C. Wu (Advisor)

Research Advised by Professor Ming C. Wu

LWL16: On-Chip DNA Transformation by Local Heat Shock and Cell Cryopreservation

Sha Li
2007

To develop DNA transformation by local heat shock and on-chip cryopreservation of cells with MEMS technology.

Project end date: 02/02/07

MCW4: MEMS-Actuated Tunable Optical Microtoroidal Resonators

Jin Yao
2007

Microresonators are key enabling devices or elements in numerous application aspects.The goal of this project is to study and improve the on-chip integration and performance of microresonators,so that they can be more effiective building blocks for wavelength-division-multiplexing (WDM) photonic integrated circuits, such as on-chip channel add-drop filters, wavelength-selective switches, group velocity dispersion compensators, compact nonlinear optical devices, and optical sensors.

Project end date: 07/24/07

MCW9: Tunable SOI Microring Optical Modulator

Sagi Mathai
Joanna Lai
Xin Sun
2007

CMOS scaling driven by “Moore’s Law” has allowed great improvements in microelectronic integrated circuit technology. In addition, high index contrast SOI optical waveguides are receiving much attention for their potential in implementing high density photonic integrated circuits alongside microelectronics. This project entails the design, fabrication, and experimental demonstration of a tunable SOI microring optical modulator with the potential for integration with CMOS microelectronics.

Project end date: 07/24/07

MCW8: MEMS Endoscopic Lens-Based Optical Coherence Tomography

Ki-Hun Jeong
Jingyi Chen
Jongbaeg Kim
2006

There is a need to develop a compact in dimension, high speed, bi-axial scanning, and robust scanner with Microelectromechanical Systems (MEMS) technology for in vivo imaging in Optical Coherence Tomography (OCT) applications. These MEMS based endoscoopes with distal beam scanning can image with higher speed, precision, and repeatability than conventional linear scanning endoscopes in which the entire endoscope is mechanically translated with respect to the observed tissue. Most importantly, with bi-axial scanning capability of the MEMS scanner, three dimensional in vivo real time...

BPN376: High frequency optoelectronic oscillator (OEO) by optical injection locking

Hyuk-Kee Sung
Erwin K. Lau
2007

Optoelectronic oscillators (OEOs) can generate high-purity RF signals with very low phase noise. The application covers a wide area of photonic and RF systems such as microwave frequency standards, radars, RF photonics and optical signal processing. Conventional OEOs have two potential drawbacks: RF amplifiers with high gain (up to ~ 60 dB) are needed to compensate the RF link loss of the feedback loop; and high frequency operation is challenging. To overcome the drawbacks and further enhance the performance of OEO, we propose a novel optical injection-locked optoelectronic...

BPN349: MEMS Tunable Micro-optical Resonator

Ming-Chun (Jason) Tien
2007

Microring and microdisk resonators are key components to realize silicon monolithic optoelectronic devices because they have the potential of integration with current CMOS electronic devices. The applications include most wavelength-division-multiplexing photonic circuits, such as optoelectronic transceivers, wavelength filters, add-drop multiplexers, optical delay lines, and group velocity dispersion compensators. Furthermore, in order to achieve dynamic switching functions, tunable capability is desired. Here we propose a tunable microring resonator with integrated MEMS actuators,...

BPN332: Monolithic micromirror array for single-chip MEMS-based dense wavelength division multiplexed (DWDM) crossconnect

Chenlu Hou
2007

The new goal of this project is to develop a micromirror array, which can be integrated into monolithic 1xN wavelength-selective switch (WSS) and NxN wavelength-selective cross connect (WSXC) for dense wavelength division multiplexed (DWDM) network. The 0.8nm channel spacing of DWDM network requires a forty- element micromirror array with a pitch of 75�m for independent spatial switching of incoming wavelength channels among output waveguides. For integration into a 1x4 WSS and 4x4 WSXC, the micromirror requires a maximum mechanical scan angle of 9.2�.

Project end...

BPN398: Single Cell Electroporation Array with OET/PDMS Integration

Hsan-Yin (Tony) Hsu
Yir-Shyuan Liz Wu
2008

Single cell analysis is an important technology for biological and medical research. The precision of manipulating the location of the single cell (relative to the assay sites or other neighboring cells) is a necessary factor. We have previously demonstrated cell manipulation and separation with optoelectronic tweezers (OET), the goal of this project is to integrate this powerful tool with the micrifluidic devices to provide a complete solution for single cell electroporation.

Project end date: 07/30/08

BPN308: Plastically Self-Aligned Micromirrors

SangHoon Lee
Chieh Chang
2008

This project aims to use the plastic deformation of single-crystal-silicon as the key process to make Angular Vertical Comb-drive (AVC) torsional microactuators using a simple three-mask process on silicon-on-insulator wafer and yet providing versatility for the potential applications in Optical MEMS (switches, bi-directional free-space laser communications), RF MEMS (variable capacitor), Image/display (head mount display) and the others.

Project end date: 07/30/08

MCW2: Direct Image-Actuated Optoelectronic Tweezers

Aaron T. Ohta
2008

Optical manipulation provides a non-invasive, dynamic, and reconfigurable method of trapping, transporting, and sorting cells and other bioparticles. Optoelectronic tweezers (OET) enables optically-controlled cellular manipulation at much lower optical power densities than conventional optical tweezers. This enables the use of direct imaging and incoherent light to create a large (1.3 mm x 1.3 mm) manipulation area for the parallel processing of cells, microparticles, and nanoparticles. The use of direct image-actuated OET allows single-particle control for biological research and...