نتایج جستجو برای: phase shifters

تعداد نتایج: 599586  

2008
Radu Ionicioiu Gehan Amaratunga Florin Udrea

We propose a new solid state implementation of a quantum computer (quputer) using ballistic single electrons as flying qubits in 1D nanowires. We use a single electron pump (SEP) to prepare the initial state and a single electron transistor (SET) to measure the final state. Single qubit gates are implemented using quantum dots as phase shifters and electron waveguide couplers as beam splitters....

Journal: :The Transactions of The Korean Institute of Electrical Engineers 2014

Journal: :Optics letters 2012
Eun Jung Min Jun Geun Shin Jae Hwi Lee Yoshiaki Yasuno Byeong Ha Lee

We present a full range handheld probe type spectral domain optical coherence tomography (SD-OCT) method. Here, the sample arm is composed of a tilted fiber-optic cantilever scanner; thus, the phase shift concurrently occurs while sample scanning. With the phase shift, we could achieve a full range complex-conjugate-free OCT image with no additional phase shifters in the reference arm. To reali...

2013
Weijian Yang Tianbo Sun Yi Rao Trevor Chan Mischa Megens Byung-Wook Yoo David A. Horsley Ming C. Wu Connie J. Chang-Hasnain Fumio Koyama Alan Eli Willner Weimin Zhou

A novel 8x8 optical phased array based on high-contrast grating (HCG) all-pass filters (APFs) is experimentally demonstrated with high speed beam steering. Highly efficient phase tuning is achieved by micro-electro-mechanical actuation of the HCG to tune the cavity length of the APFs. Using APF phase-shifters allows a large phase shift with an actuation range of only tens of nanometers. The ult...

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