T. Ishii

Engineering · Physical Sciences

16h-index883citations50works0.02yr avg
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Research Topics

Photonic and Optical Devices(18), Semiconductor materials and devices(16), Advancements in Photolithography Techniques(12), Advancements in Semiconductor Devices and Circuit Design(9), Integrated Circuits and Semiconductor Failure Analysis(8)

Publications50 total

Fullerene Nanocomposite Resists for Nanolithography
2009· 4 cited
High-Speed Wavelength-Tunable Optical Filter Using Cascaded Mach–Zehnder Interferometers With Apodized Sampled Gratings
IEEE Journal of Quantum Electronics·2008· 13 cited
Short Cavity DBR Laser Using Vertical Groove Gratings for Large-Scale Photonic Integrated Circuits
IEEE Photonics Technology Letters·2007· 11 cited
Polyimide optical waveguides fabricated by direct electron beam writing
2005
An apodized sampled grating using a vertical-groove high-mesa waveguide structure
2005· 1 cited
Fast tunable optical filter using cascaded Mach-Zehnder Interferometers with apodized sampled gratings
IEEE Photonics Technology Letters·2004· 14 cited
Apodised sampled grating using InGaAsP/InP deep-ridge waveguide with vertical-groove surface grating
Electronics Letters·2004· 16 cited
Ultrahigh-speed InP-based D- and E-mode MODFETs with ultra-short electrochemically-recessed gate contacts
2003
Photonic spectral encoder/decoder using an arrayed-waveguide grating for coherent optical code division multiplexing
2003· 13 cited
0.1- mu m-gate, ultrathin-film CMOS devices using SIMOX substrate with 80-nm-thick buried oxide layer
2002· 54 cited
30-nm-gate InAlAs/InGaAs HEMTs lattice-matched to InP substrates
2002· 31 cited
Fabrication and performances of AlGaAs-GaAs wavelength distributed feedback lasers and distributed Bragg reflector lasers utilizing first-order diffraction grating formed by periodic groove structure
2002
Simplified fabrication of polyimide waveguide grating using synchrotron radiation irradiation
2002
Second- and third-order dispersion compensation using a high resolution arrayed-waveguide grating
2002· 7 cited
30-nm two-step recess gate InP-Based InAlAs/InGaAs HEMTs
IEEE Transactions on Electron Devices·2002· 73 cited
Refractive Index Control of Polyimide by Synchrotron Radiation, and the Application to Fabrication of a Waveguide Grating
Electronics and Communications in Japan (Part II Electronics)·2002· 4 cited
Gate and Recess Engineering for Ultrahigh-Speed InP-Based HEMTs
IEICE Transactions on Electronics·2001· 12 cited
8 THz bandwidth dispersion-slope compensatormodule for multiband 40 Gbit/s WDMtransmission systems using an AWG and spatialphase filter
Electronics Letters·2001· 16 cited
Contrast Enhancement of ZEP520 Resist by Fullerene-Derivative Incorporation
Japanese Journal of Applied Physics·2001· 13 cited
Contrast Enhancement of ZEP520 Resist by Fullerene-Derivative Incorporation : Instrumentation, Measurement, and Fabrication Technology
Japanese Journal of Applied Physics·2001
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Frequent Co-authors

Toshiaki Tamamura(18), Hirokazu Takenouchi(8), Tetsuya Suemitsu(7), Hiroyuki Tsuda(6), Takashi Goh(6), Y. Ishii(6), Hiroshi Nozawa(6), Takashi Kurokawa(5), Tadahito Matsuda(5), Shinji Matsuo(5), Yukio Umeda(4), Yoshitaka Ohiso(4), Kiyotaka Shigehara(4), Akira Hirano(3), T. Enoki(3), Kazunori Naganuma(3), Eiichi Kuramochi(3), Takehiko Segawa(3), H. Suzuki(3), Takahisa Maruno(3)