The Graduate Institute of Applied Physics (GIAP) at National Taiwan University was founded on August 1, 2008 in an effort to expand the research activities of the Physics Department. The major aims of the GIAP are to strengthen industrial-based academic activities and to train scientists for careers in application-based sciences and technologies. At the present, the GAIP is focusing on cutting-edge research and applications in areas of semiconductors, superconductors, magnetic materials, optical-electronics, and bio-physics.
Areas of Speciality
The GAIP conducts theoretical, and experimental research in the following areas: (1) optical-electronics, (2) superconducting electronics and applications, (3). spintronics, (4). biophysics and engineering, (5). nano-science and nano-technology. Each research filed is briefly described below:
(i) Optical electronics:
Research in optical electronics focuses on the physics and applications of : (1) light-emitted diode, (2) quantum device, (3) opto-electronic device, (4) nano-photonics, (5) high resolution near field storage , and (6) near field imaging.
(ii)Superconducting electronics and biomagnetism:
Research of superconducting electronics focuses on: (1) physics of superconducting quantum interference devices (SQUID), (2) quantum computing, (3) magnetocadiography, (4) magnetoencephalography, (5) magnetic resonance imaging, (6) superconducting filters for satellite communication, and (7) magnetically labeled immunoassay.
The research of spintronics covers: (1)materials for spintronics, (2) magnetic metal/non-magnetic metal multilayer, (3) magnetic semiconductors, (4) magnetic oxides, (5) mixed magnetic and semiconductor system, (6) mixed ferromagnetic/superconductor system, (7) nano-magnetic particles,(8)tunneling magnetoresistance, (9)spindynamics, (10) tunneling magneto-resistance sensor, (11) giant magnetoresistance sensor, (12) heads and sensors for magnetic recording, (14) Magnetic randon access memory,(15)spin injection and spin transistor.
(iv)Biophysics and bioengineering:
Research in the areas of biophysics and bioengineering includes: (1) Multiphoton microscopy for tissue diagnostics (2) tissue engineering (3) in vivo cellular biophysics, and (4) light manipulation of biological structures.
(v) Nano-science and technology:
The research on nano-science and technology covers: (1) quantum dots, (2) quantum wire, (3) ultrathin films, (4) nano-sensors, (5) nano-tube, (6) nano-sphere, (7) magnetic nano-particles, (8) frontier nano-materials in ceramics, alloy, and compounds.
(IV) Equpments:
Equipments of the research group are described below:
Main Equipments
Equipments (a) Superconducting Quantum Interference Device Magnetomer (SQUID Magnetometer) (b) Mask aligner (c) Reactive Ion etcher (d) Scanner electron microscope (e) Scanning tunneling microscope (f) Magnetic force microscope
Superconducting electronics and biomagnetism (a) Magnetron sputtering systems (b) SQUID magnetometers and gradiometers for biomagnetic applications。 (c) Scanning tunneling microscope and magnetic force microscope (d) SQUID magnetoencephalography。 (f) Low field nuclear magnetic resonance and imaging。
Semiconductors (a) Chemical vapor deposition, Plasma Chemical vapor deposition (CVD)、Organic metal CVD (b) photoluminacence system、Infrared/Far infrared Fourier spectrometer、deep level instant energy spectrometer、Argon laser、Helium-cadmium laser (c) Superconducting magnet、C-V and I-V measurement、0.3 K He3 cryostat、Hall measurement system、Close cycle refrigeration system (d) Low temperature scanning tunneling microscope (e) Far infrared laser (f) Superconducting magnet (7T)
Spin-tronics (a) Sputtering system with rotatable substrate holder (b) Multi-gun magnetron sputtering system (c) Vibrating sample magnetometer (d) Magnetoresistance measurement system (e) Polarizing microscope (f) Atomic force and magnetic force microscope
Surface magnetism (a) Ultrahigh vacuum and sample transport (b) Electron gun evaporation system (Mini MBE) (c) Low energy electron diffractometer (d) Ion sputtering gun (e) Auger spectrometer (f) MOKE measurement (g) Ultrahigh vacuum system
Low temperature and electron transport (a) He3 cryostat (0.3 K)、superconducting magnet (6 T) (b) Arc melting sample preparation system (c) Resistance measurement system (d) Close cycle refrigerator (10 – 300 K)
Thin film (a) Laser deposition system (b) High resolution x-ray diffractometer (c) Refection high energy electron diffractometer (d) Mass spectrometer: (e) Physical properties measurement system (f) Ellipsometer
Nano-photonics (a) Near field microscopy (b) Near field spectrometer (c) Semiconductor laser (d) Optical fiber drawing machine (e) CCD spectrometer
Liquid crystal (a) Equipment for preparing liquid crystal。 (b) Optical and heat measurement system with resolution of 10-9 Joule. (c) Liquid crystal thin film refraction measurement. (d) Transmission electron microscope. (e) Optical texture measurement system. (f) Tension measurement system.
Biophysics and Bioengineering (a) Femtosecond titanium-sapphire laser systems (b) Optical parametric oscillator (c) Laser scanning microscopes (d) Animal facility (e) Tissue culture incubators

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