SUMMARY

 

·   Ph.D. candidate in physics, specializing in optical properties of nanostructured thin films.

·   Extensive hands-on experience with thin film fabrication and nanoscale characterization, inventor of “Broadband Asymmetric Mirrors” (Patent Application # 11/983335 ).

·   Solid experimental skills in linear and nonlinear (ultrafast) optical spectroscopy.

·   Native speaker of Mandarin/Chinese, Min Dialect/Taiwanese and fluent in English.

 

OBJECTIVE AND TARGET JOBS

 

To obtain a research associate or research scientist position in Optics, Nanomaterial Science, Semiconductor industry, Biotech Engineering/Medical Application, Computer Hardware/Software Testing

Interested job type: Semiconductor ThinFilm Processing, Optical Scientist, Semiconductor Testing scientist, Software Development, Nanoindustry, Biotech Processing Engineering.

SKILLS PROFILE [Top]

 

Thin Film Fabrication		Nano-Characterization
· Electron Beam Lithography (Zeiss SEM/J.Nabity NPGS)		· Scanning Electron Microscope
· Photolithography and Wet Etching		· Transmission Electron Microscope
· Electroless Chemical Deposition (Tollen's Reaction)		· Atomic Force Microscope
· High Vacuum Thermal Deposition		· Triax320 Spectrometer/CCD3000
· Sputter Deposition		· UV-Vis Spectrophotometer
		· FTIR Spectrophotometer
Scientific Programming		· Four-Point Probe Station
· Mathematica	· C (Origin C)/C++ (Visual C++)
· LabVIEW	· Comsol FEM/Matlab Simulation
Optical Instrumentation and Laser System
· Proficient skills in aligning, tuning and operating CW and pulse (femtosecond) laser system
· Extensive hands-on experience in building up various optical setup and electronic components
· Strong hardware interface programming for auto-data-acquisition using NI LabVIEW
· Strong C and Origin LabTalk programming skills for image and large data processing

SKILLS DESCRIPTION

Thin Film Fabrication and Nano-characterization

 

·   Proficient in operating Zeiss SEM and J. Nabity NPGS for electron-beam lithography, skillful in sub-50nm bi-layer writing and liftoff technique.

·   Extensive hands-on experience in photolithography, spin coating, high vacuum thermal deposition, sputter deposition and various wet chemical etching (HF, KOH, etc).

·   Proficient in electroless chemical deposition (Tollen's Reaction), coatings on asymmetric mirrors, silica microbeads (300nm to 1000nm) and self-assembly photonic crystals.

·   Proficient in nanoscale surface characterization, including scanning electron microscopy, transmission electron microscopy, atomic force microscopy.

·   Familiar with UV-Vis, FTIR spectrophotometer, Filmetrics, X-ray diffractometer and four-point probe station.

 

Optical Instrumentation and Laser System

 

·   Proficient skills in aligning, tuning and operating CW and pulse (femtosecond) laser system.

·   Extensive hands-on experience in building up various complicated optical setups and electronic components (spectrometer, autocorrelator, lock-in-amplifier, photomultiplier, spectrum analyzer, photodiode, optical fibers and acousto-optic modulator etc).

·   Strong hardware interface programming for auto-data-acquisition using NI LabVIEW.

·   Strong C and Origin LabTalk programming skills for image and large data processing.

 

EDUCATION [Top]

 

Ph.D. Candidate, University of Oregon, Eugene, OR, USA,2003-present
Research focus on “Fabrication and Optical Properties of Nanostructured Random and Patterned Metallo-dielectric Thin Films” (expected date of graduation: before summer 2009).
M.S. in Physics, University of Oregon, Eugene, OR, USA, 2003-2005
M.S. Program in Optics, Xiamen University, Xiamen, Fujian, China, 2001-2002
B.S. in Physics and Electrical Communications, Xiamen University, China  1997-2002

 

PROFESSIONAL AND RESEARCH EXPERIENCE [Top]
Research Assistant, 2003 ~ present

Mesoscale and Nanoscale Fabrication

·   Fabricated gold nanopillar arrays (diameter: ~30nm; period: 200nm) with anisotropy and chirality (polarization selective in transmittance, potential use as optical isolator). Optimized and calibrated Zeiss SEM/ J. Nabity NPGS electron-beam lithography system to attain sub-50nm resolution.

·   Modified Tollen's Reaction to fabricate “asymmetric mirrors” (patent application # 11/983335). Developed one-step and two-step thin film coating protocols to make asymmetric mirrors and tune their reflection asymmetry. Fabricated 30nm to 50nm effective thickness semi-continuous silver films at various surface coverages on glass substrate and followed by high vacuum thermal depositions (asymmetric mirrors have potential application in solar cells).

·   Developed and optimized fabrication protocols based on modified Tollen's Reaction to deposit silver thin films on silica microbeads (coatings on one micron silica core with ~30nm silver shell) and on 2D self-assembly silica photonic crystals (coatings on textured micron scale surfaces).

·   Applied photolithography to build micron-scale chambers to assembly 3D metallo-dielectric core/shell photonic crystals.

 

Optical Spectroscopy

·   Optimized and tuned a homemade femtosecond Ti: sapphire laser (temporal width from 100fs to 240fs and wavelength from 780nm to 850nm) and successfully detected non-linear Second Harmonic Generation from nano-shell structures (one micron silica core and ~25 nm silver shell).

·   Designed and built a linear spectroscopy system (coupled a Leica microscope with JY Triax320 spectrometer with liquid N₂ cooled CCD), which could measure reflection and transmission of dedicate samples at micon-scale spatial resolution and 0.5 nm spectral resolution in optical and near infrared range (400nm-900nm). Programmed Origin C and LabTalk for automatic data processing.

 

·   Built a high angular resolution (0.2 mrad), high precision (10^5degree), angle-resolved surface plasmon resonance detecting system (attenuated total reflection coupling scheme). Programmed LabVIEW for automated data acquisition (hardware communication programming to control motorized rotation stage, motorized gratings and CCD). 

 

 

PATENTS AND JOURNAL ARTICLES [Top]

 

·   Miriam Deutsch, Aiqing Chen, and Keisuke Hasegawa, “Broadband Asymmetric Mirrors,” patent application number 11/983335, filed on 11/07/2007.

·   Aiqing Chen and Miriam Deutsch, “Tuning asymmetric reflectance by two-step coatings,” in preparations (2008).

·   A. Chen, K. Hasegawa, V. A. Podolskiy, and M. Deutsch, “Metamaterial coatings for broadband asymmetric mirrors,” Optics Letters, 32, 1770 (2007). This paper has been selected for the January 21, 2008 of Virtual Journal of Nanoscale Science & Technology. [online paper]

·   M.S.M. Peterson, J. Bouwman, A. Chen, M. Deutsch, “Inorganic metallodielectric materials fabricated using two single step methods based on the Tollens process,” Journal of Colloid Interface Science, 306, 41 (2007).[online paper]

 

CONFERENCE PAPER AND PRESENTATIONS

·   A. Chen , K. Hasegawa, and M. Deutsch, “Broadband asymmetric mirrors using metal-dielectric nano-composite coatings,” poster presentation, Mater. Res. Soc. March Meeting (2007).

·   C. Rohde, A. Chen, K. Hasegawa, and M. Deutsch, “Percolative Metal nanoshells for metallodielectric photonic crystals,” in Integrated Photonics Research and Applications/Nanophotonics for Information Systems, Technical Digest (Optical Society of America, 2005), paper NWB3.[online paper]

·   C. Rohde, K. Hasegawa, A. Chen and M. Deutsch, “Percolation-enhanced supercontinuum and second-harmonic generation from metal nanoshells,” Mater. Res. Soc. Symp. Proc.  846, DD5.4.1 (2005).[online paper]

 

RESEARCH HIGHLIGHT AND AWARDS

 

·   Inventor of “Broadband Asymmetric Mirrors” (Patent application # 11/983335), University of Oregon, Eugene, OR, USA (2007).

·   Excellent Graduate Award (3 out of 73), Department of Physics, Xiamen University, China (2001).

·   First place in “Challenge Cup” College Student Research and Invention Contest (Fujian zone) for the scientific programming “LaserCAD”, Xiamen University, Xiamen, China (2000).

·   First place in National Mathematical Contest in Modeling (MCM, Fujian zone), Xiamen University, Xiamen, China (1999).

AFFILIATIONS [Top]

Student Member of Optical Society of America (OSA)

Student Member of Material Research Society (MRS)