Femtosecond Laser Written Depressed-Cladding Waveguide 2 × 2, 1 × 2 and 3 × 3 Directional Couplers in Tm3+:YAG Crystal.
TLDR
The fabrication of depressed-cladding waveguide 2D 2 × 2, 1 × 2 and 3D 3 × 3 directional couplers in Tm3+:YAG crystal by femtosecond laser writing opens up new opportunities in the beneficial fabrication of 3D circuits and devices in crystals.Abstract:
Ion-doped crystal-based compact devices capable of beam splitting and coupling are enthralling for a broad range of classical and quantum integrated photonics applications. In this work, we report on the fabrication of depressed-cladding waveguide 2D 2 × 2, 1 × 2 and 3D 3 × 3 directional couplers in Tm 3 + :YAG crystal by femtosecond laser writing. The performances of the couplers are characterized at 810 nm, showing single-mode guidance, polarization independence, finely matched splitting ratios. These results open up new opportunities in the beneficial fabrication of 3D circuits and devices in crystals.read more
Citations
More filters
Journal ArticleDOI
Biosensors: frontiers in rapid detection of COVID-19
Rachel Samson,Rachel Samson,Govinda R. Navale,Govinda R. Navale,Mahesh S. Dharne,Mahesh S. Dharne +5 more
TL;DR: This review summarizes the existing status of current diagnostic methods, their possible limitations, and the advantages of biosensor-based diagnostics over the conventional ones for the detection of SARS-Cov-2.
Journal ArticleDOI
Early warning of COVID-19 via wastewater-based epidemiology: potential and bottlenecks.
TL;DR: In this article, wastewater-based epidemiology (WBE) has been given high expectations as a promising surveillance complement to clinical testing which had been plagued by limited capacity and turnaround time, and recent studies have highlighted the role WBE may play in being a part of the early warning system.
Journal ArticleDOI
Fighting COVID-19: Integrated Micro- and Nanosystems for Viral Infection Diagnostics.
TL;DR: This Perspective reviews the previous and ongoing research efforts on developing integrated micro- and nanosystems for nucleic acid-based virus detection, and highlights promising technologies that could provide better solutions for the diagnosis of COVID-19 and other viral infectious diseases.
Journal ArticleDOI
Accelerated Development of Colloidal Nanomaterials Enabled by Modular Microfluidic Reactors: Toward Autonomous Robotic Experimentation
TL;DR: This progress report details the basic principles of microfluidic reactor design and performance, as well as the current state of online diagnostics and autonomous robotic experimentation strategies, toward the size, shape, and composition-controlled synthesis of various colloidal nanomaterials.
Journal ArticleDOI
Recent developments in the photodetector applications of Schottky diodes based on 2D materials
Bhuvaneshwari Ezhilmaran,Abhinandan Patra,Stenny Benny,M R Sreelakshmi,V V Akshay,S. Venkataprasad Bhat,Chandra Sekhar Rout +6 more
TL;DR: In this article, the basic concepts, detection mechanism and evaluation parameters of Schottky junction-based photodetectors and the recent developments in the past five years are reviewed.
References
More filters
Journal ArticleDOI
Writing waveguides in glass with a femtosecond laser
TL;DR: The results suggest that multiphoton interactions occur in the glasses and that it may be possible to write three-dimensional optical circuits in bulk glasses with such a focused laser beam technique.
Journal ArticleDOI
Optically addressable nuclear spins in a solid with a six-hour coherence time
Manjin Zhong,Morgan Hedges,Morgan Hedges,Rose Ahlefeldt,Rose Ahlefeldt,John G. Bartholomew,Sarah E. Beavan,Sarah E. Beavan,Sven M. Wittig,Jevon J. Longdell,Matthew Sellars +10 more
TL;DR: The coherence time observed here is long enough that nuclear spins travelling at 9 kilometres per hour in a crystal would have a lower decoherence with distance than light in an optical fibre, enabling some very early approaches to entanglement distribution to be revisited, in particular those in which the spins are transported rather than the light.
Journal ArticleDOI
Optical waveguides in crystalline dielectric materials produced by femtosecond-laser micromachining
TL;DR: A review of the state-of-the-art in the fabrication, characterization and applications of femtosecond-laser micromachined waveguiding structures in optical crystals and ceramics is presented in this article.
Journal ArticleDOI
Broadband waveguide quantum memory for entangled photons
Erhan Saglamyurek,Neil Sinclair,Jeongwan Jin,Joshua A. Slater,Daniel Oblak,Wolfgang Tittel,Félix Bussières,Mathew George,Raimund Ricken,Wolfgang Sohler +9 more
TL;DR: The authors' broadband quantum memory complements the family of robust, integrated lithium niobate devices and simplifies frequency-matching of light with matter interfaces in advanced applications of quantum communication, bringing fully quantum-enabled networks a step closer.
Journal ArticleDOI
Complete reconstruction of the quantum state of a single-photon wave packet absorbed by a Doppler-broadened transition.
Sergey A. Moiseev,Stefan Kröll +1 more
TL;DR: An idea for how to reconstruct the quantum state of a nonstationary single-photon wave packet absorbed in a macroscopic medium with inhomogeneously broadened lines is presented.