Results 11 to 20 of about 1,290,697 (278)

Single-Mode Semiconductor Nanowire Lasers With Coupled Cavities

open access: yesFrontiers in Chemistry, 2021
Semiconductor nanowires are one of the most fascinating topics over the past few decades. As miniaturized coherent light sources, semiconductor nanowires have been attracting tremendous attention in recent years for scientific and technological interest ...
Salman Ullah   +7 more
doaj   +1 more source

Sociodemographics and Psychosocial Experiences of Distance Learners in Nigeria: A Comparison of Single-mode and Dual-mode Universities

open access: yesJournal of Open, Flexible and Distance Learning, 2022
The study explored the psychosocial experience of distance learners at the National Open University of Nigeria (NOUN) and the Obafemi Awolowo University (OAU) in Ile-Ife.
Tajudeen Adebisi, Taiwo Olatunji
doaj   +2 more sources

Two-Segment Gain-Coupled Distributed Feedback Laser

open access: yesIEEE Photonics Journal, 2018
A two-segment regrowth-free gain-coupled distributed feedback (DFB) laser monolithically integrated different gain contrast segments was proposed, realizing both wavelength-tunable (5 nm) and wavelength stabilization characteristics, controlled by a ...
Feng Gao   +11 more
doaj   +1 more source

Single-Mode ZBLAN Fiber Couplers [PDF]

open access: yesEPJ Web of Conferences, 2022
We demonstrate single-mode ZBLAN optical fiber couplers. A controlled tapering procedure leads to coupling ratios of 5%/95% and 14%/86% at a wavelength of 2200 nm, with insertion losses of 1.6 dB and 1.8 dB, respectively.
Rezaei Mohsen   +3 more
doaj   +1 more source

Single-Mode Phononic Wire

open access: yesPhysical Review Letters, 2018
Photons and electrons transmit information to form complex systems and networks. Phonons on the other hand, the quanta of mechanical motion, are often considered only as carriers of thermal energy. Nonetheless, their flow can also be molded in fabricated nanoscale circuits.
Patel, Rishi N.   +5 more
openaire   +4 more sources

Comparative Analysis of Operational Structures in Single- and Dual-Mode Distance Learning Institutions in Nigeria

open access: yesInternational Review of Research in Open and Distributed Learning, 2021
This study examined the similarities and differences in the processes and facilities for distance education at National Open University of Nigeria (NOUN), a single-mode distance learning institution, and Obafemi Awolowo University (OAU), Ile-Ife, a dual ...
Taiwo Isaac Olatunji   +1 more
doaj   +1 more source

Optical fiber flowmeter based on a single mode-multimode-single mode structure

open access: yesFrontiers in Sensors, 2022
Single mode-Multimode-Single mode (SMS) sensors have been attracted a relevant attention because of their simple manufacturing, their capability of sensing different quantities, and their enhanced sensitivity compared to the most common fiber optic ...
Massimo Olivero   +4 more
doaj   +1 more source

Single mode thermal emission

open access: yesOptics Express, 2015
We report on the properties of a thermal emitter which radiates into a single mode waveguide. We show that the maximal power of thermal radiation into a propagating single mode is limited only by the temperature of the thermal emitter and does not depend on other parameters of the waveguide.
Lena Simone, Fohrmann   +5 more
openaire   +2 more sources

Stable Multi-Wavelength Thulium-Doped Fiber Laser With Two Cascaded Single-Mode-Four-Mode-Single-Mode Fiber Interferometers

open access: yesIEEE Access, 2021
We propose and experimentally demonstrate a multi-wavelength thulium-doped fiber laser using two cascaded single-mode-four-mode-single-mode (SFS) fiber interferometers and a 150-m-long highly nonlinear fiber.
Ying Guo   +9 more
doaj   +1 more source

Measuring nonclasicality of single-mode systems

open access: yes, 2020
A beam splitter can generate entanglement if the input field is nonclassical, e.g. squeezed. Thus, beam splitter transformation can be utilized for obtaining single-mode nonclassicality conditions from two-mode entanglement criteria. Here, we demonstrate
Tasgin, Mehmet Emre
core   +1 more source

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