Browsing by Keywords "Lithography"
Now showing items 1-16 of 16
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50 nm Hall Sensors for Room Temperature Scanning Hall Probe Microscopy
(Institute of Physics Publishing, 2004)Bismuth nano-Hall sensors with dimensions ∼50nm × 50 nm were fabricated using a combination of optical lithography and focused ion beam milling. The Hall coefficient, series resistance and optimum magnetic field sensitivity ... -
Color holographic reconstruction using multiple SLMs and LED illumination
(S P I E - International Society for Optical Engineering, 2009)A color holographic reconstruction technique by using three light emitting diodes (LEDs) is described. Reflective type phase-only spatial light modulators (SLMs) are used since they are suitable for in-line phase holograms. ... -
Fabrication of polymer micro needles for transdermal drug delivery system using DLP based projection stereo-lithography
(Elsevier B.V., 2016)Fabrication of micro needles, which reduce pain during insertion and lessen tissue injury, has recently attracted great interest. Different manufacturing systems have been utilized for the advancement of micro needles such ... -
Filtering characteristics of hybrid integrated polymer and compound semiconductor waveguides
(IEEE, 2002)This paper reports a study on a compact filter fabricated using hybrid integration of compound semiconductors and polymers. A GaAs epilayer is glued onto a polymer channel waveguide forming a highly asymmetrical directional ... -
Highly polarized light emission by isotropic quantum dots integrated with magnetically aligned segmented nanowires
(American Institute of Physics, 2014)In this work, we demonstrate a proof-of-concept system for generating highly polarized light from colloidal quantum dots (QDs) coupled with magnetically aligned segmented Au/Ni/Au nanowires (NWs). Optical characterizations ... -
Holograms deep inside Silicon
(OSA - The Optical Society, 2016)Through the Nonlinear Laser Lithography method, we demonstrate the first computer generated holograms fabricated deep inside Silicon. Fourier and Fresnel holograms are fabricated buried inside Si wafers, and a generation ... -
In-chip microstructures and photonic devices fabricated by nonlinear laser lithography deep inside silicon
(Nature Publishing Group, 2017)Silicon is an excellent material for microelectronics and integrated photonics 1-3, with untapped potential for mid-infrared optics 4 . Despite broad recognition of the importance of the third dimension 5,6, current ... -
Investigation of the effect of thermal cycling on the device performance of YBa2Cu3O7-δ DC-SQUIDs
(2007)We investigated the effect of thermal cycling on the operational performance of YBa2Cu3O7-δ (YBCO) direct current superconducting quantum interference devices (DC-SQUIDs) fabricated onto 24°SrTiO3 (STO) bicrystal substrates. ... -
Method to enlarge the hologram viewing window using a mirror module
(2009)A liquid crystal panel for a video projector is often used for holographic television. However, its pixel size and pixel number are not enough for practical holographic 3-D display. Therefore, a multipanel configuration ... -
Nonlinear laser lithography for enhanced tribological properties
(Institute of Electrical and Electronics Engineers Inc., 2015)This paper investigates a new field for application of femtosecond laser-induced periodic surface structures (LIPSS). We designed an innovative solution to reduce coefficient of friction of mechanical parts by using the ... -
Quality comparison and acceleration for digital hologram generation method based on segmentation
(IEEE, 2009)A holographic fringe pattern generation methods is based on Fraunhofer diffraction and subsequent segmentation and approximation of the fringe pattern. Several modifications of the original algorithm are already proposed ... -
Real-time color holographic video display system
(IEEE, 2009)A real-time multi-GPU color holographic video display system computes holograms from 3D video of a rigid object. System has three main stages; client, server and optics. 3D coordinate and texture information are kept in ... -
Reconfigurable nested ring-split ring transmitarray unit cell employing the element rotation method by microfluidics
(Institute of Electrical and Electronics Engineers, 2015)A continuously tunable, circularly polarized X-band microfluidic transmitarray unit cell employing the element rotation method is designed and fabricated. The unit cell comprises a double layer nested ring-split ring ... -
Scaling of diffractive and refractive lenses for optical computing and interconnections
(Optical Society of America, 1994-06-10)We discuss both numerically and analytically how the space-bandwidth product and the information density of lenses scale as functions of their diameter and f-number over many orders of magnitude. This information may be ... -
Spectroscopic investigation of polyvinyl chloride photodegradation in blends with basic traps
(Bilkent University, 1999)Polyvinyl chloride degrades via loss of HCI when it is exposed to heat, energetic particles or photons. The mechanism is known as the zip mechanism and results in conjugated segments, polyenes. Degradation also leads to ... -
Ultra-low-cost near-infrared photodetectors on silicon
(SPIE, 2015)We demonstrate Silicon-only near-infrared (NIR) photodetectors (sensitive up to 2000 nm) that meet large-scale ultralow-cost fabrication requirements. For the detection of infrared photons, we use metal nanoislands that ...
