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  • Article
  • Open Access
4 Citations
4,677 Views
12 Pages

Design and Research of Photonic Reservoir Computing for Optical Channel Equalization

  • Xiaoyan Zuo,
  • Li Pei,
  • Bing Bai,
  • Bowen Bai and ,
  • Jianshuai Wang,
  • Quan Li and
  • Run Yang
  • + 2 authors+ 0 author

In this paper, photonic reservoir computing chip architectures for noise equalization in optical fiber communication channels are proposed. These architectures leverage optical computing instead of electrical computing to reduce computational pressur...

(This article belongs to the Special Issue Optical Fiber Communication: Challenges and Opportunities)
  • Feature Paper
  • Article
  • Open Access
14 Citations
5,755 Views
13 Pages

8 June 2018

We propose a general concept of quantum antenna in the strong coupling regime. It is based on the theory of open quantum systems. Antenna emission into space is considered an interaction with a thermal photonic reservoir. For antenna dynamics modelin...

(This article belongs to the Special Issue Nano-Antennas)
  • Article
  • Open Access
410 Views
17 Pages

High-Speed Single-Physical-Hardware Deep Photonic Reservoir Computing Based on a Spin-VCSEL

  • Beiyi Liu,
  • Letao Mao,
  • Shenkai Zhang,
  • Yongrui Li and ,
  • Deyu Cai,
  • Yu Huang and
  • Nianqiang Li
  • + 2 authors+ 0 author

15 September 2026

As a bio-inspired paradigm fully implementable in optics, deep reservoir computing (RC) has emerged as a powerful computational framework for efficient information processing. However, conventional deep RC architectures typically demand substantial h...

(This article belongs to the Special Issue Vertical-Cavity Surface-Emitting Laser Technology: Innovations and Future Trends)
  • Article
  • Open Access
1 Citations
2,549 Views
20 Pages

Exploration of Four-Channel Coherent Optical Chaotic Secure Communication with the Rate of 400 Gb/s Using Photonic Reservoir Computing Based on Quantum Dot Spin-VCSELs

  • Dongzhou Zhong,
  • Tiankai Wang,
  • Yujun Chen,
  • Qingfan Wu and ,
  • Chenghao Qiu,
  • Hongen Zeng,
  • Youmeng Wang and
  • Jiangtao Xi
  • + 3 authors+ 0 author

In this work, we present a novel four-channel coherent optical chaotic secure communication (COCSC) system, incorporating four simultaneous photonic reservoir computers in tandem with four coherent demodulation units. We employ a quartet of photonic...

(This article belongs to the Special Issue Machine Learning Applied to Optical Communication Systems)
  • Article
  • Open Access
5 Citations
3,134 Views
19 Pages

Photonic Reservoir Computer with Output Expansion for Unsupervized Parameter Drift Compensation

  • Jaël Pauwels,
  • Guy Van der Sande,
  • Guy Verschaffelt and
  • Serge Massar

26 July 2021

We present a method to improve the performance of a reservoir computer by keeping the reservoir fixed and increasing the number of output neurons. The additional neurons are nonlinear functions, typically chosen randomly, of the reservoir neurons. We...

(This article belongs to the Section Signal and Data Analysis)
  • Article
  • Open Access
2 Citations
3,274 Views
11 Pages

Quantum Interference Effects on Information Phase Space and Entropy Squeezing

  • Abdel-Baset A. Mohamed,
  • Shoukry S. Hassan and
  • Rania A. Alharbey

5 February 2019

Wehrl entropy and its density are used to investigate the dynamics of loss of coherence and information in a phase space for an atomic model of two-photon two-level atom coupled to different radiation reservoirs (namely, normal vacuum (NV), thermal f...

(This article belongs to the Section Quantum Information)
  • Review
  • Open Access
809 Views
29 Pages

Sensor networks increasingly combine exposed sensing nodes, optical communication, photonic hardware, near-sensor inference, and distributed infrastructure monitoring. This changes the security problem from protecting packets alone to establishing de...

(This article belongs to the Special Issue Advanced Technologies for Detecting Cybersecurity Attacks in Internet of Things Systems)
  • Review
  • Open Access
5 Citations
2,327 Views
41 Pages

4 February 2026

Semiconductor optical amplifiers (SOAs) are central to the development of ultrafast, low-power all-optical signal processing systems. Their strong nonlinear response, compact size, and compatibility with photonic integration platforms make them key e...

(This article belongs to the Collection Nano-Optics and Nano-Optoelectronics: Challenges and Future Trends)
  • Article
  • Open Access
13 Citations
4,281 Views
14 Pages

Manifestation of the Purcell Effect in Current Transport through a Dot–Cavity–QED System

  • Nzar Rauf Abdullah,
  • Chi-Shung Tang,
  • Andrei Manolescu and
  • Vidar Gudmundsson

17 July 2019

We study the transport properties of a wire-dot system coupled to a cavity and a photon reservoir. The system is considered to be microstructured from a two-dimensional electron gas in a GaAs heterostructure. The 3D photon cavity is active in the far...

  • Article
  • Open Access
1 Citations
2,873 Views
22 Pages

15 June 2025

Swept-source optical coherence tomography (SS-OCT) is a widely used imaging technique, particularly in medical diagnostics, due to its ability to provide high-resolution cross-sectional images. However, one of the main challenges in SS-OCT systems is...

(This article belongs to the Special Issue Advanced Optical Technologies for Communications, Perception, and Chips)
  • Article
  • Open Access
3 Citations
3,649 Views
13 Pages

Photon Counting Statistics of a Microwave Cavity Coupled with Double Quantum Dots

  • Faqiang Wang,
  • Weici Liu,
  • Xiaolei Wang,
  • Zhongchao Wei and ,
  • Hongyun Meng and
  • Ruisheng Liang
  • + 1 author+ 0 author

16 November 2019

The statistical properties of photon emission counting, especially the waiting time distributions (WTDs) and large deviation statistics, of a cavity coupled with the system of double quantum dots (DQDs) driven by an external microwave field were inve...

(This article belongs to the Section Quantum Science and Technology)
  • Article
  • Open Access
2 Citations
4,141 Views
15 Pages

Quantum Photovoltaic Cells Driven by Photon Pulses

  • Sangchul Oh,
  • Jung Jun Park and
  • Hyunchul Nha

20 June 2020

We investigate the quantum thermodynamics of two quantum systems, a two-level system and a four-level quantum photocell, each driven by photon pulses as a quantum heat engine. We set these systems to be in thermal contact only with a cold reservoir w...

  • Article
  • Open Access
4 Citations
1,790 Views
27 Pages

A Novel Photon-Counting Laser Point Cloud Denoising Method Based on Spatial Distribution Hierarchical Clustering for Inland Lake Water Level Monitoring

  • Xin Lv,
  • Xiao Wang,
  • Xiaomeng Yang,
  • Junfeng Xie and ,
  • Fan Mo,
  • Chaopeng Xu and
  • Fangxv Zhang
  • + 2 authors+ 0 author

4 March 2025

Inland lakes and reservoirs are critical components of global freshwater resources. However, traditional water level monitoring stations are costly to establish and maintain, particularly in remote areas. As an alternative, satellite altimetry has be...

(This article belongs to the Section Remote Sensing in Geology, Geomorphology and Hydrology)
  • Article
  • Open Access
9 Citations
4,263 Views
13 Pages

Thermoelectric Inversion in a Resonant Quantum Dot-Cavity System in the Steady-State Regime

  • Nzar Rauf Abdullah,
  • Chi-Shung Tang,
  • Andrei Manolescu and
  • Vidar Gudmundsson

We theoretically investigate thermoelectric effects in a quantum dot system under the influence of a linearly polarized photon field confined to a 3D cavity. A temperature gradient is applied to the system via two electron reservoirs that are connect...

(This article belongs to the Special Issue Nanostructured Materials for Thermoelectrics)
  • Article
  • Open Access
17 Citations
3,764 Views
18 Pages

11 September 2021

Of the approximately 6700 lakes and reservoirs larger than 1 km2 in the Contiguous United States (CONUS), only ~430 (~6%) are actively gaged by the United States Geological Survey (USGS) or their partners and are available for download through the Na...

(This article belongs to the Section Remote Sensing in Geology, Geomorphology and Hydrology)
  • Article
  • Open Access
21 Citations
4,555 Views
22 Pages

Water Level Change Monitoring Based on a New Denoising Algorithm Using Data from Landsat and ICESat-2: A Case Study of Miyun Reservoir in Beijing

  • Junfeng Xie,
  • Binbo Li,
  • Huihui Jiao,
  • Qingqing Zhou and ,
  • Yongkang Mei,
  • Donghai Xie,
  • Yu Wu,
  • Xiaoyang Sun and
  • Ying Fu
  • + 4 authors+ 0 author

1 September 2022

Inland lakes or reservoirs are the main surface water resources, related to people’s survival and social development. On-site water level data are critical for water resource management, while satellite laser and remote sensing data are a signi...

(This article belongs to the Special Issue Theory and Applications of Satellite Laser Altimetry in Oceanography and Limnology)
  • Feature Paper
  • Article
  • Open Access
36 Citations
5,320 Views
11 Pages

2 December 2019

Reservoir computing has rekindled neuromorphic computing in photonics. One of the simplest technological implementations of reservoir computing consists of a semiconductor laser with delayed optical feedback. In this delay-based scheme, virtual nodes...

(This article belongs to the Special Issue Semiconductor Laser Dynamics: Fundamentals and Applications)
  • Review
  • Open Access
17 Citations
8,139 Views
25 Pages

Integrated Photonic Neural Networks for Equalizing Optical Communication Signals: A Review

  • Luís C. B. Silva,
  • Pablo R. N. Marciano,
  • Maria J. Pontes,
  • Maxwell E. Monteiro and ,
  • Paulo S. B. André and
  • Marcelo E. V. Segatto
  • + 1 author+ 0 author

The demand for high-capacity communication systems has grown exponentially in recent decades, constituting a technological field in constant change. Data transmission at high rates, reaching tens of Gb/s, and over distances that can reach hundreds of...

(This article belongs to the Section Optoelectronics and Optical Materials)
  • Article
  • Open Access
805 Views
24 Pages

23 January 2026

Interesting new correlations and unidirectional properties of two bosonic modes under the influence of the environment appear when the modes are mutually coupled through the simultaneously applied linear mode-hopping and nonlinear squeezing interacti...

(This article belongs to the Special Issue Symmetry and Nonlinearity in Optics)
  • Article
  • Open Access
4 Citations
2,463 Views
20 Pages

We investigate the entanglement dynamics of two giant atoms coupled to a one-dimensional photonic lattice with synthetic chirality. The atoms are connected to multiple lattice sites in a braided configuration and interact with a structured photonic r...

(This article belongs to the Special Issue Advanced Research in Quantum Optics)
  • Article
  • Open Access
2 Citations
2,130 Views
14 Pages

2 February 2023

In this paper, we consider the application of quantum reservoir engineering in quantum metrology. More precisely, we are concerned with a system setup where a sequence of atoms constructing the “time-varying” quantum reservoir interact, i...

(This article belongs to the Special Issue Quantum Optics: Science and Applications)
  • Article
  • Open Access
842 Views
19 Pages

A Husimi Phase-Space Approach to a Driven–Dissipative Quantum Field at Finite Temperature

  • Marco A. García-Márquez,
  • Irán Ramos-Prieto,
  • Francisco Soto-Eguibar and
  • Héctor M. Moya-Cessa

We investigate the dynamics of a driven quantum field coupled to a finite-temperature reservoir. The corresponding master equation is solved using superoperator techniques, yielding an analytical expression for the density operator. To obtain a compa...

  • Article
  • Open Access
10 Citations
5,139 Views
15 Pages

30 March 2020

Making use of the equivalence between information and entropy, we have shown in a recent paper that particles moving with a kinetic energy ε carry potential information i p o t ( ε , T ) = 1 ln ( 2 ) ε...

(This article belongs to the Special Issue The Landauer Principle: Meaning, Physical Roots and Applications)
  • Article
  • Open Access
3 Citations
2,231 Views
25 Pages

ICESat-2 Water Photon Denoising and Water Level Extraction Method Combining Elevation Difference Exponential Attenuation Model with Hough Transform

  • Xilai Ju,
  • Yongjian Li,
  • Song Ji,
  • Danchao Gong and ,
  • Hao Liu,
  • Zhen Yan,
  • Xining Liu and
  • Hao Niu
  • + 3 authors+ 0 author

19 August 2025

For addressing the technical challenges of photon denoising and water level extraction in ICESat-2 satellite-based water monitoring applications, this paper proposes an innovative solution integrating Gaussian function fitting with Hough transform. T...

  • Article
  • Open Access
3 Citations
2,700 Views
13 Pages

High-Speed Reservoir Computing Based on Circular-Side Hexagonal Resonator Microlaser with Optical Feedback

  • Tong Zhao,
  • Wenli Xie,
  • Yanqiang Guo,
  • Junwei Xu and ,
  • Yuanyuan Guo and
  • Longsheng Wang
  • + 1 author+ 0 author

In the current environment of the explosive growth in the amount of information, the demand for efficient information-processing methods has become increasingly urgent. We propose and numerically investigate a delay-based high-speed reservoir computi...

(This article belongs to the Special Issue Machine Learning and Photonics Cooperation: Principles, Algorithms, and Systems)
  • Communication
  • Open Access
8 Citations
3,074 Views
10 Pages

A delay-laser-based reservoir computer (RC) usually has its processing speed limited by the transient response of laser dynamics. Here, we study a simple all-optical approach to enhancing the processing speed by introducing optical injection to the r...

(This article belongs to the Special Issue Semiconductor Lasers)
  • Article
  • Open Access
7 Citations
3,336 Views
15 Pages

Period-Doubling Route to Chaos in Photorefractive Two-Wave Mixing

  • Subin Saju,
  • Kenji Kinashi,
  • Naoto Tsutsumi,
  • Wataru Sakai and
  • Boaz Jessie Jackin

This paper investigates the possibilities of complex nonlinear dynamic signal generation using a simple photorefractive two-wave mixing system without any feedback using numerical simulations. The novel idea is to apply a sinusoidal electric field to...

(This article belongs to the Section Optoelectronics and Optical Materials)
  • Article
  • Open Access
17 Citations
3,952 Views
14 Pages

Quantum Advantages of Teleportation and Dense Coding Protocols in an Open System

  • Saeed Haddadi,
  • Maryam Hadipour,
  • Soroush Haseli,
  • Atta Ur Rahman and
  • Artur Czerwinski

14 March 2023

Quantum teleportation and dense coding are well-known quantum protocols that have been widely explored in the field of quantum computing. In this paper, the efficiency of quantum teleportation and dense coding protocols is examined in two-level atoms...

(This article belongs to the Special Issue Mathematical Perspectives on Quantum Computing and Communication)
  • Article
  • Open Access
27 Citations
10,272 Views
14 Pages

Integration of an Optical Ring Resonator Biosensor into a Self-Contained Microfluidic Cartridge with Active, Single-Shot Micropumps

  • Sascha Geidel,
  • Sergio Peransi Llopis,
  • Manuel Rodrigo,
  • Graciela De Diego-Castilla and ,
  • Antonio Sousa,
  • Jörg Nestler,
  • Thomas Otto,
  • Thomas Gessner and
  • Victor Parro
  • + 4 authors+ 0 author

13 September 2016

While there have been huge advances in the field of biosensors during the last decade, their integration into a microfluidic environment avoiding external tubing and pumping is still neglected. Herein, we show a new microfluidic design that integrate...

(This article belongs to the Collection Lab-on-a-Chip)
  • Review
  • Open Access
558 Views
31 Pages

Signatures of Black Hole Spin in Horizon-Scale Polarimetry

  • George N. Wong,
  • Daniel C. M. Palumbo,
  • Zachary Gelles and
  • Andrew Chael

14 September 2026

The angular momentum of a black hole, usually expressed in terms of a dimensionless “spin,” both shapes the strong-field spacetime and provides a reservoir of rotational energy that can be exchanged with surrounding plasma. Very long base...

(This article belongs to the Special Issue Black Hole Spin Measurements)
  • Article
  • Open Access
56 Citations
8,148 Views
15 Pages

29 October 2018

Pseudanabaena sp. is a common and harmful species in freshwater cyanobacteria blooms. There are very few studies on its distribution characteristics and growth influencing factors. In the current study, it was found to be dominant in three cascading...

(This article belongs to the Collection Eutrophication and Sustainable Management of Water)
  • Article
  • Open Access
5 Citations
2,558 Views
27 Pages

18 January 2025

Quantum reservoir computing (QRC) has emerged as a promising paradigm for harnessing near-term quantum devices to tackle temporal machine learning tasks. Yet, identifying the mechanisms that underlie enhanced performance remains challenging, particul...

(This article belongs to the Special Issue Quantum Computing in the NISQ Era)
  • Article
  • Open Access
1 Citations
639 Views
12 Pages

Reservoir computing (RC) is a simple and highly efficient artificial neural network. For such a network, only the output connection weights need training, effectively reducing computational complexity. Optoelectronic time-delayed RC is typically base...

(This article belongs to the Special Issue Microwave Photonics: Advances and Applications)
  • Article
  • Open Access
1,893 Views
33 Pages

Parametric Characterization of Nonlinear Optical Susceptibilities in Four-Wave Mixing: Solvent and Molecular Structure Effects

  • José L. Paz,
  • Alberto Garrido-Schaeffer,
  • Marcos A. Loroño,
  • Lenin González-Paz and ,
  • Edgar Márquez,
  • José R. Mora and
  • Ysaias J. Alvarado
  • + 2 authors+ 0 author

25 September 2024

We study the nonlinear absorptive and dispersive optical properties of molecular systems immersed in a thermal reservoir interacting with a four-wave mixing (FWM) signal. Residual spin-orbit Hamiltonians are considered in order to take into account t...

(This article belongs to the Section C: Physics)
  • Feature Paper
  • Article
  • Open Access
5 Citations
4,183 Views
13 Pages

Design and Fabrication of a Fully-Integrated, Miniaturised Fluidic System for the Analysis of Enzyme Kinetics

  • Andreas Tsiamis,
  • Anthony Buchoux,
  • Stephen T. Mahon,
  • Anthony J. Walton and ,
  • Stewart Smith,
  • David J. Clarke and
  • Adam A. Stokes
  • + 2 authors+ 0 author

25 February 2023

The lab-on-a-chip concept, enabled by microfluidic technology, promises the integration of multiple discrete laboratory techniques into a miniaturised system. Research into microfluidics has generally focused on the development of individual elements...

  • Article
  • Open Access
242 Views
17 Pages

A Monte Carlo Study of Gray-Level—Depth Mapping in Underwater Images

  • Zhengyu Liu,
  • Siguang Zong,
  • Jing Cao and
  • Mengxue Lin

24 September 2026

Conventional underwater images offer an accessible means of observing vertical light attenuation, but interpreting their gray-level trends requires a link between optical transport and digital image formation. This study derives conditions under whic...

(This article belongs to the Special Issue Advances in Photonics, Optics and Laser Technology)
  • Article
  • Open Access
2 Citations
1,431 Views
18 Pages

24 April 2025

All-optical encoders and comparators are essential components for high-speed optical computing, enabling ultra-fast data processing with minimal latency and low power consumption. This paper presents a numerical analysis of an all-optical encoder and...

(This article belongs to the Special Issue Advanced Nanomaterials for Semiconductor Photonics and Their Applications in AI and Sensing)
  • Article
  • Open Access
7 Citations
4,279 Views
15 Pages

Shaping in the Third Direction: Self-Assembly of Convex Colloidal Photonic Crystals on an Optical Fiber Tip by Hanging Drop Method

  • Ion Sandu,
  • Iulia Antohe,
  • Claudiu Teodor Fleaca,
  • Florian Dumitrache and ,
  • Iuliana Urzica,
  • Simona Brajnicov,
  • Romulus Iagaru,
  • Bogdan Alexandru Sava and
  • Marius Dumitru
  • + 4 authors+ 0 author

21 December 2023

High-quality convex colloidal photonic crystals can be grown on the tip of an optical fiber by self-assembly using the hanging drop method. They are convex-shaped, produce the diffraction of reflecting light with high efficiency (blazing colors), and...

(This article belongs to the Section Smart and Functional Polymers)
  • Feature Paper
  • Article
  • Open Access
15 Citations
4,109 Views
13 Pages

29 May 2025

The quantum Mpemba effect refers to the counterintuitive phenomenon in which a system initially farther from equilibrium relaxes faster than one prepared closer to it. Several mechanisms have been identified in open quantum systems to explain this be...

(This article belongs to the Section Non-equilibrium Phenomena)
  • Article
  • Open Access
5 Citations
1,966 Views
17 Pages

21 July 2025

Encryption and decryption are essential components in signal processing and optical communication systems, providing data confidentiality, integrity, and secure high-speed transmission. We present a novel design and simulation of an all-optical encry...

(This article belongs to the Special Issue Integrated Photonics and Optoelectronics, 2nd Edition)
  • Review
  • Open Access
651 Views
20 Pages

Dual-Mechanism Synergistic Regulation and Performance Optimization of Lead Sulfide Quantum Dot Coatings in Optoelectronic Memristors

  • Ru Li,
  • Xinhe Jiang,
  • Xuhao Zhao,
  • Huiyun Zhang and ,
  • Qingyu Xu and
  • Guangyu Wang
  • + 1 author+ 0 author

15 June 2026

Lead sulfide quantum dots (PbS QDs), as a functional-layer coating, enable non-volatile integration and neuromorphic computing in memristive structures to address the von Neumann bottleneck. Herein, the dual-interface mechanism of PbS QDs in the memr...

(This article belongs to the Special Issue Structures and Coatings for High-Performance Photonics, Optoelectronics and Photovoltaics)
  • Article
  • Open Access
12 Citations
5,215 Views
20 Pages

High-Precision 3D Printing of Microporous Cochlear Implants for Personalized Local Drug Delivery

  • Aikaterini Isaakidou,
  • Iulian Apachitei,
  • Lidy Elena Fratila-Apachitei and
  • Amir Abbas Zadpoor

Hearing loss is a highly prevalent multifactorial disorder affecting 20% of the global population. Current treatments using the systemic administration of drugs are therapeutically ineffective due to the anatomy of the cochlea and the existing blood&...

(This article belongs to the Section Biomaterials for Drug Delivery)
  • Article
  • Open Access
9 Citations
4,292 Views
18 Pages

1 September 2022

The stable isotope composition of soluble and insoluble organic compounds in carbonaceous chondrites can be used to determine the provenance of organic molecules in space. Deuterium enrichment in meteoritic organics could be a residual signal of synt...

(This article belongs to the Special Issue Organic Chemical Evolution regarding the Origin(s) of Life)
  • Feature Paper
  • Article
  • Open Access
648 Views
20 Pages

31 January 2026

We develop a digitization-based analysis workflow for characterizing the entropy and correlation structure of truncated bosonic quantum fields after embedding them into small qubit registers, and illustrate it on the steady state of a coherently pump...

(This article belongs to the Special Issue Dissipative Physical Dynamics)
  • Article
  • Open Access
31 Citations
4,259 Views
16 Pages

Effects of Light and Temperature on the Metabolic Profiling of Two Habitat-Dependent Bloom-Forming Cyanobacteria

  • Bijayalaxmi Mohanty,
  • Seyed Mohammad Majedi,
  • Shruti Pavagadhi,
  • Shu Harn Te and ,
  • Chek Yin Boo,
  • Karina Yew-Hoong Gin and
  • Sanjay Swarup
  • + 2 authors+ 0 author

29 April 2022

Rapid proliferation of cyanobacteria in both benthic and suspended (planktonic) habitats is a major threat to environmental safety, as they produce nuisance compounds such as cytotoxins and off-flavors, which degrade the safety and quality of water s...

(This article belongs to the Section Environmental Metabolomics)
  • Systematic Review
  • Open Access
30 Citations
8,342 Views
19 Pages

Enhancing Root Canal Disinfection with Er:YAG Laser: A Systematic Review

  • Jakub Fiegler-Rudol,
  • Zuzanna Grzech-Leśniak,
  • Marcin Tkaczyk,
  • Kinga Grzech-Leśniak and ,
  • Anna Zawilska and
  • Rafał Wiench
  • + 1 author+ 0 author

26 February 2025

Background: The quest for minimally invasive disinfection in endodontics has led to using Erbium:Yttrium-Aluminum-Garnet (Er:YAG) lasers. Conventional approaches may leave bacterial reservoirs in complex canal anatomies. Er:YAG’s strong water a...

(This article belongs to the Special Issue Laser Dentistry: The Current Status and Developments)
  • Article
  • Open Access
700 Views
19 Pages

This paper presents the design and engineering proof-of-concept evaluation of a robotic variable-height, four-level vertical farming system that mechanically advances plant rows daily through compartments of increasing height, so that the luminaire-t...