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Journal articles on the topic 'Electricaly tuned filters'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Pogarsky, S. A. "Electrically tuned filter." International Journal of Infrared and Millimeter Waves 18, no. 10 (1997): 1937–41. http://dx.doi.org/10.1007/bf02678354.

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2

Sun, Changli, and Jiangang Lu. "A Tunable NIR Filter with Sphere Phase Liquid Crystal." Crystals 9, no. 7 (2019): 349. http://dx.doi.org/10.3390/cryst9070349.

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A near-infrared (NIR) filter with sphere phase liquid crystal (SPLC) is proposed, which shows a low operating electric field and large temperature-gradient modulations. The central wavelength of the Bragg reflection can be thermally tuned from 1580 nm to 1324 nm with a temperature-gradient of 42.7 nm/K. Meanwhile, the central wavelength can be electrically tuned over 76 nm within a low operating electric field of 0.3 V/μm. Thus, the SPLC filter may achieve a wavelength variation of 256 nm by thermal modulation and 76 nm by electrical modulation. The SPLC filter shows great potential applicatio

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3

Brito-Brito, Z., I. Llamas-Garro, and L. Pradell. "Selectivity-tuned bandpass filter." Electronics Letters 45, no. 19 (2009): 984. http://dx.doi.org/10.1049/el.2009.0958.

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4

Murtadha Othman, Muhammad, W. Muhammad Faizol Bin W Mustapha, Amirul Asyraf Mohd Kamaruzaman, et al. "Harmonic Load Mitigation Using the Optimal Double Tuned Passive Filter Technique." Indonesian Journal of Electrical Engineering and Computer Science 6, no. 2 (2017): 338. http://dx.doi.org/10.11591/ijeecs.v6.i2.pp338-348.

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Harmonic is one of the power quality disturbances customarily imminent in an unbalanced electrical system. Harmonic represents as the multiple integral of fundamental frequency of voltage and current inflicting towards the shifting in system frequency causing to a disruptive operation of electrical devices. This paper investigates on the performance of passive filter intrinsically by utilizing the inductor and capacitor electrical components to mitigate harmonic problem emanating from an unbalanced electrical system. In particular, explication in this paper will focus on the optimal parameters

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5

Yaghmaee, Pouria, Onur Hamza Karabey, Bevan Bates, Christophe Fumeaux, and Rolf Jakoby. "Electrically Tuned Microwave Devices Using Liquid Crystal Technology." International Journal of Antennas and Propagation 2013 (2013): 1–9. http://dx.doi.org/10.1155/2013/824214.

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An overview of liquid crystal technology for microwave and millimeter-wave frequencies is presented. The potential of liquid crystals as reconfigurable materials arises from their ability for continuous tuning with low power consumption, transparency, and possible integration with printed and flexible circuit technologies. This paper describes physical theory and fundamental electrical properties arising from the anisotropy of liquid crystals and overviews selected realized liquid crystal devices, throughout four main categories: resonators and filters, phase shifters and delay lines, antennas

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6

Abdelghfar, Ahmed, Mohamed A. Mousa, Bassant M. Fouad, Ahmed H. Saad, Noha Anous, and Noha Gaber. "Electrostatically Tuned Optical Filters Based on Hybrid Plasmonic-Dielectric Thin Films for Hyperspectral Imaging." Micromachines 12, no. 7 (2021): 767. http://dx.doi.org/10.3390/mi12070767.

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Hyperspectral imaging has a wide range of uses, from medical diagnostics to crop monitoring; however, conventional hyperspectral imaging systems are relatively slow, bulky, and rather costly. In this paper, we present an inexpensive, compact tunable optical filter for hyperspectral applications. The filter is based on a Fabry-Pérot interferometer utilizing hybrid metallic-dielectric mirrors and actuated using a MEMS electrostatic actuator. The optical filter is designed using the transfer matrix method; then, the results were verified by an electromagnetic wave simulator. The actuator is based

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7

B R, Madhu, Dinesh MN, and Ravitheja BM. "Design of shunt hybrid active power filter (SHAPF) to reduce harmonics in AC side due to Non-linear loads." International Journal of Power Electronics and Drive Systems (IJPEDS) 9, no. 4 (2018): 1926. http://dx.doi.org/10.11591/ijpeds.v9.i4.pp1926-1936.

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<p>The quality of power is a major concern because of harmonics in the lines due to various sources. Passive filters have been used to eliminate the specific harmonics. In this paper shunt hybrid active power filter which consists of shunt active filter and shunt passive filter is designed to reduce harmonics in source side for non linear loads. The shunt passive filter includes a tuned RLC circuit that behaves like a band-pass filter for a particular harmonic content. The shunt active filter is a VSI that produces reverse harmonic current based on Clarke’s transformation. This paper pre

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8

Hsieh, Lung-Hwa, and Kai Chang. "Piezoelectric transducer tuned bandstop filter." Electronics Letters 38, no. 17 (2002): 970. http://dx.doi.org/10.1049/el:20020665.

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9

Wilson, D. M., and S. Quabili. "Compact, well-tuned bandpass filter." Electronics Letters 35, no. 5 (1999): 364. http://dx.doi.org/10.1049/el:19990259.

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10

Pwint Wai, May Phu, Amornchai Chaichana, Winai Jaikla, Surapong Siripongdee, and Peerawut Suwanjan. "One input voltage and three output voltage universal biquad filters with orthogonal tune of frequency and bandwidth." International Journal of Electrical and Computer Engineering (IJECE) 11, no. 4 (2021): 2962. http://dx.doi.org/10.11591/ijece.v11i4.pp2962-2973.

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This research paper contributes the one input three output voltage mode universal biquad filters with linear and electronic control of the natural frequency (<em>w<sub>0</sub></em>), using two commercially available ICs, LT1228s as active device with two grounded capacitors, five resistors. The presented universal biquad filters can simultaneously provide three voltage-mode filtering functions, low-pass (LP), high-pass (HP) and band-pass (BP) without changing the circuit architecture. Furthermore, the first presented biquad filter provides low impedance at HP, BP voltag

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11

Plett, Calvin, and Miles A. Copeland. "Self-tuned continuous-time notch filters." Journal of VLSI signal processing systems for signal, image and video technology 8, no. 3 (1994): 227–40. http://dx.doi.org/10.1007/bf02106448.

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12

Aljwary, Adel, Ziyodulla Yusupov, Olimjon Toirov, and Rustam Shokirov. "Mitigation of load side harmonic distortion in standalone photovoltaic based microgrid." E3S Web of Conferences 304 (2021): 01010. http://dx.doi.org/10.1051/e3sconf/202130401010.

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Photovoltaic (PV) system as one part of distributed energy resources is becoming an alternative for low and medium distribution network of microgrid. By the reason of a wide implementation of power electronic and non-linear loads, harmonics distortion is one of the main problems for the power systems. There are several filter types to mitigate the harmonics. The passive filter is distinguished by its simplicity and economical options from another filters. In this paper, the passive single tuned filter (STF) is used to minimize harmonics distortion in standalone PV based microgrid. A solar PV a

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13

Hughes, J. B., N. C. Bird, and R. S. Soin. "Self-tuned RC-active filters for VLSI." Electronics Letters 22, no. 19 (1986): 993. http://dx.doi.org/10.1049/el:19860679.

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14

Morrison, James A., Faranak Farzan, Thane Fremouw, Riziq Sayegh, Ellen Covey, and Paul A. Faure. "Organization and trade-off of spectro-temporal tuning properties of duration-tuned neurons in the mammalian inferior colliculus." Journal of Neurophysiology 111, no. 10 (2014): 2047–60. http://dx.doi.org/10.1152/jn.00850.2013.

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Neurons throughout the mammalian central auditory pathway respond selectively to stimulus frequency and amplitude, and some are also selective for stimulus duration. First found in the auditory midbrain or inferior colliculus (IC), these duration-tuned neurons (DTNs) provide a potential neural mechanism for encoding temporal features of sound. In this study, we investigated how having an additional neural response filter, one selective to the duration of an auditory stimulus, influences frequency tuning and neural organization by recording single-unit responses and measuring the dorsal-ventral

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15

Takahashi, Isao, and Yasushi Omura. "High-power active filter usingLC-tuned filter." Electrical Engineering in Japan 113, no. 3 (1993): 135–43. http://dx.doi.org/10.1002/eej.4391130314.

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16

Kusko, Alexander, and Syed M. Peeran. "Tuned Filters for Traction Rectifier Sets." IEEE Transactions on Industry Applications IA-21, no. 6 (1985): 1571–79. http://dx.doi.org/10.1109/tia.1985.349619.

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17

Peresada, Sergiy Mykchailovych, Sergiy Mykolaiovych Kovbasa, and Yuriy Mykchailovych Zaichenko. "DYNAMIC PERFORMANCES OF THE SHUNT ACTIVE POWER FILTER CONTROL SYSTEM." Applied Aspects of Information Technology 4, no. 1 (2021): 47–56. http://dx.doi.org/10.15276/aait.01.2021.4.

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Harmonic pollution of the electrical mains is well known and well-studied phenomena. Active power filter being a powerful tool to meet the requirements of regulatory documents regulating the electricity quality. Despite this fact, practical implementation of the active power filter is still connected with significant difficulties. In particular, existing systems typically use fast Fourier transform methods or instantaneous power theory to estimate the harmonic composition of the mains current. However, the use of fast Fourier transform requires high computing power of the control system, and t

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18

Kus, Vaclav, Bohumil Skala, and Pavel Drabek. "Complex Design Method of Filtration Station Considering Harmonic Components." Energies 14, no. 18 (2021): 5872. http://dx.doi.org/10.3390/en14185872.

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The paper deals with a new methodology for calculating the filter parameters. The basis is respect for the fact that the real filter current consists of other harmonic components, which filter is tuned. The proposed methodology was used to design filters for traction substation 25 kV/50 Hz. The operation of the locomotives in the AC supply systems of 25 kV/50 Hz leads to a rising of higher order harmonic currents. Due to the 1-phase supply system, these are mainly the 3rd and 5th harmonics. By simulation and subsequent measurement of the proposed traction power station filters the proposed met

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19

Takahashi, Isao, and Yasushi Omura. "High Power Active Filter using LC Tuned Filter." IEEJ Transactions on Industry Applications 112, no. 9 (1992): 823–28. http://dx.doi.org/10.1541/ieejias.112.823.

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20

Zakharov, Alexander, Sergii Rozenko, Sergii Litvintsev, and Mykhailo Ilchenko. "Hairpin Resonators in Varactor-Tuned Microstrip Bandpass Filters." IEEE Transactions on Circuits and Systems II: Express Briefs 67, no. 10 (2020): 1874–78. http://dx.doi.org/10.1109/tcsii.2019.2953247.

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21

BISWAS, S. K. "Very-high-Qinductor simulation for active tuned filters." International Journal of Electronics 58, no. 6 (1985): 1019–23. http://dx.doi.org/10.1080/00207218508939099.

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22

Roos, F., and R. C. Bansal. "Reactive power and harmonic compensation: A case study for the coal-mining industry." Journal of Energy in Southern Africa 30, no. 1 (2019): 34–48. http://dx.doi.org/10.17159/2413-3051/2019/v30i1a2473.

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This study reports on a case study in Grootegeluk Mine: Exxaro Coal, Lephalale, South Africa, in terms of power factor correction (PFC), load flow, harmonic frequency scans and harmonic voltage distortion analyses. The DIgSilent PowerFactory software was used for network simulations. Harmonic and reactive power compensation techniques were compared in terms of filter type evolution and technology advancement, with the use of simple trade-off criteria such as cost-effectiveness versus performance. It was found that both passive and hybrid filters were more favourable and could effectively compe

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23

Ab Wahab, Norfishah, Mohd Khairul Mohd Salleh, Zuhani Ismail Khan, and Nur Emileen Abd Rashid. "Reconfigurable Ring Filter with Controllable Frequency Response." Scientific World Journal 2014 (2014): 1–11. http://dx.doi.org/10.1155/2014/671369.

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Reconfigurable ring filter based on single-side-access ring topology is presented. Using capacitive tuning elements, the electrical length of the ring can be manipulated to shift the nominal center frequency to a desired position. A synthesis is developed to determine the values of the capacitive elements. To show the advantage of the synthesis, it is applied to the reconfigurable filter design using RF lumped capacitors. The concept is further explored by introducing varactor-diodes to continuously tune the center frequency of the ring filter. For demonstration, two prototypes of reconfigurab

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24

Djoumessi, E. E., M. Chaker, and K. Wu. "Varactor-tuned quarter-wavelength dual-bandpass filter." IET Microwaves, Antennas & Propagation 3, no. 1 (2009): 117. http://dx.doi.org/10.1049/iet-map:20080040.

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25

Nordquist, C. D., C. L. Goldsmith, C. W. Dyck, et al. "X-band RF MEMS tuned combline filter." Electronics Letters 41, no. 2 (2005): 76. http://dx.doi.org/10.1049/el:20057375.

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26

Chen, Yung-Wei, Hung-Wei Wu, and Yan-Kuin Su. "Design of multi-layered bandpass filter with independently controllable triple-passband response." International Journal of Microwave and Wireless Technologies 6, no. 6 (2014): 611–18. http://dx.doi.org/10.1017/s1759078714000014.

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In this paper, a new multi-layered triple-passband bandpass filter using embedded and stub-loaded stepped impedance resonators (SIRs) is proposed. The filter is designed to have triple-passband at 1.8, 2.4, and 3.5 GHz. The 1st and 2nd passbands (1.8/2.4 GHz) are simultaneously generated by controlling the impedance and length ratios of the embedded SIRs (on top layer). The 3rd passband (3.5 GHz) is generated by using the stub-loaded SIR (on bottom layer). Using the embedded SIR, the even modes can be tuned within very wide frequency range and without affecting the odd modes. Therefore, the de

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27

Carey-Smith, B. E., and P. A. Warr. "Distortion Mechanisms in Varactor Diode-Tuned Microwave Filters." IEEE Transactions on Microwave Theory and Techniques 54, no. 9 (2006): 3492–500. http://dx.doi.org/10.1109/tmtt.2006.881024.

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28

Alzaher, H. A., and M. Ismail. "Digitally tuned analogue integrated filters using R-2R ladder." Electronics Letters 36, no. 15 (2000): 1278. http://dx.doi.org/10.1049/el:20000947.

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29

LEE, H. S., and S. W. YUN. "Microwave Planar Varactor Tuned Bandpass Filters: Historical Overview." IEICE Transactions on Electronics E89-C, no. 12 (2006): 1806–13. http://dx.doi.org/10.1093/ietele/e89-c.12.1806.

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30

Li, Yong-An. "Synthesis for Butterworth Filter Using Compact VDTA Based on Sallen- Key Topology." Recent Advances in Electrical & Electronic Engineering (Formerly Recent Patents on Electrical & Electronic Engineering) 13, no. 5 (2020): 681–88. http://dx.doi.org/10.2174/2352096512666191004123213.

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Background: The original filter including grounded or virtual ground capacitors can be synthesized by using the NAM expansion. However, so far the filters including floating capacitor, such as Sallen-Key filter, have not been synthesized by means of the NAM expansion. This is a problem to be researched further. Methods: By using the adjoint network theory, the Sallen-Key filter including floating capacitor first is turned into a current-mode one, which includes a grounded capacitor and a virtual ground capacitor. Then the node admittance matrix, after derived, is extended by using NAM expansio

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31

Kong, Yong, Guowei Yang, and Xiujiang Huang. "Multiple-stage liquid crystal tuned filter." Optik 122, no. 19 (2011): 1723–29. http://dx.doi.org/10.1016/j.ijleo.2010.10.032.

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32

Zakharov, A. V., and M. E. Il’chenko. "A new approach to designing varicap-tuned filters." Journal of Communications Technology and Electronics 55, no. 12 (2010): 1424–31. http://dx.doi.org/10.1134/s1064226910120156.

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33

Saleh, Saber M., and Mohamed E. Arafa. "Improving the power factor correction in the presence of harmonics by reducing the effect of resonance and harmonics." Indonesian Journal of Electrical Engineering and Computer Science 3, no. 2 (2016): 282. http://dx.doi.org/10.11591/ijeecs.v3.i2.pp282-295.

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Harmonics in electrical networks occur as a result of non-linear loads. It has an effect on power factor improvement using capacitors in terms of increasing the unbalance current between units. In addition, the occurrence of resonance and result in the exit of capacitors from service by the protective relays to protect the units from collapse. The main objective of this research is the real-time study of improving the power factor with reducing the effect of the resonance and harmonics on the power system. This reduction can be done using filters, consist of reactors and capacitors connected i

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34

Shanmugapriya, M., T. Manimekalai, and C. V. Gayathri. "Performance Analysis of Cantilever Beam for Tunable Fabry Perot Filter." Sensor Letters 17, no. 9 (2019): 739–45. http://dx.doi.org/10.1166/sl.2019.4140.

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The design and simulation of the cantilever beam for tunable fabry perot filter is discussed in this paper. The fabry perot filter is tuned to operate in three frequency ranges namely short wave Infrared (SWIR), mid wave Infrared (MWIR) and long wave Infrared (LWIR) are operated in the frequency range of 1.6–2.5 μm, 3–5 μm and 8–12 μm respectively. The light that is emitted from the array of vertical cavity surface emitting laser (VCSEL) is tuned to the desired wavelength using this fabry perot filter. The fabry perot cavity length is varied using the MEMS cantilever. By applying the reflectiv

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35

Wang, Z. P., P. S. Hall, J. Kelly, and P. Gardner. "Microstrip Tunable Bandpass Filter with the Colinear Resonators." International Journal of Antennas and Propagation 2013 (2013): 1–5. http://dx.doi.org/10.1155/2013/960138.

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This paper presents the lumped element circuit and transmission line equivalent circuit for a varactor-tuned bandpass filter. The filter consists of transmission lines, fixed capacitors, and a varactor diode. The colinear resonant sections, in this filter, are not configured in parallel, as they are in a conventional combline filter. For this reason the overall area of the filter is reduced. The passband of the filter can be tuned from 0.69 GHz to 1.20 GHz by varying the capacitance of the varactor diode. The insertion loss of this filter changes from 1.2 dB to 2.1 dB across this bandwidth.

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36

Bhaskar, Data R., Ajishek Raj, and Pragati Kumar. "Mixed-Mode Universal Biquad Filter Using OTAs." Journal of Circuits, Systems and Computers 29, no. 10 (2019): 2050162. http://dx.doi.org/10.1142/s0218126620501625.

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This paper introduces an electronically tunable mixed-mode universal biquad filter configuration employing four single output operational transconductance amplifiers (OTAs), one dual output OTA and two grounded capacitors (GCs) (ideal for integrated circuit implementation and absorbing shunt parasitic capacitances). The presented structure can realize all second-order filter functions, namely, low pass (LP), high pass (HP), band pass (BP), band reject (BR) and all pass (AP) responses in voltage mode (VM), current mode (CM), transresistance mode (TRM) and transconductance mode (TCM) using appro

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37

Cuadrado, Javier, Florian Michaud, Urbano Lugrís, and Manuel Pérez Soto. "Using Accelerometer Data to Tune the Parameters of an Extended Kalman Filter for Optical Motion Capture: Preliminary Application to Gait Analysis." Sensors 21, no. 2 (2021): 427. http://dx.doi.org/10.3390/s21020427.

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Optical motion capture is currently the most popular method for acquiring motion data in biomechanical applications. However, it presents a number of problems that make the process difficult and inefficient, such as marker occlusions and unwanted reflections. In addition, the obtained trajectories must be numerically differentiated twice in time in order to get the accelerations. Since the trajectories are normally noisy, they need to be filtered first, and the selection of the optimal amount of filtering is not trivial. In this work, an extended Kalman filter (EKF) that manages marker occlusi

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38

Cai, Jing, Jian‐Xin Chen, Xue‐Feng Zhang, Yong‐Jie Yang, and Zhi‐Hua Bao. "Electrically varactor‐tuned bandpass filter with constant bandwidth and self‐adaptive transmission zeros." IET Microwaves, Antennas & Propagation 11, no. 11 (2017): 1542–48. http://dx.doi.org/10.1049/iet-map.2016.0919.

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39

Cuadrado, Javier, Florian Michaud, Urbano Lugrís, and Manuel Pérez Soto. "Using Accelerometer Data to Tune the Parameters of an Extended Kalman Filter for Optical Motion Capture: Preliminary Application to Gait Analysis." Sensors 21, no. 2 (2021): 427. http://dx.doi.org/10.3390/s21020427.

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Optical motion capture is currently the most popular method for acquiring motion data in biomechanical applications. However, it presents a number of problems that make the process difficult and inefficient, such as marker occlusions and unwanted reflections. In addition, the obtained trajectories must be numerically differentiated twice in time in order to get the accelerations. Since the trajectories are normally noisy, they need to be filtered first, and the selection of the optimal amount of filtering is not trivial. In this work, an extended Kalman filter (EKF) that manages marker occlusi

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40

Mercier, D., J. C. Orlianges, T. Delage, et al. "Millimeter-Wave Tune-All Bandpass Filters." IEEE Transactions on Microwave Theory and Techniques 52, no. 4 (2004): 1175–81. http://dx.doi.org/10.1109/tmtt.2004.825744.

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41

Seungpyo Hong and Kai Chang. "Stub-tuned microstrip bandpass filters for millimeter-wave diplexer design." IEEE Microwave and Wireless Components Letters 15, no. 9 (2005): 582–84. http://dx.doi.org/10.1109/lmwc.2005.855376.

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42

Vemulapalli, G., P. K. Hanumolu, Youn-Jae Kook, and Un-Ku Moon. "A 0.8-V accurately tuned linear continuous-time filter." IEEE Journal of Solid-State Circuits 40, no. 9 (2005): 1972–77. http://dx.doi.org/10.1109/jssc.2005.848170.

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43

Kim, B. W., Y. H. Chun, and S. W. Yun. "Varactor-tuned active bandpass filter with low noise performance." Electronics Letters 40, no. 15 (2004): 945. http://dx.doi.org/10.1049/el:20045109.

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44

Aini, Zulfatri, Zainal Ahnur, David Setiawan, and Ahmad Fudholi. "Analysis of the Effect of an Installation of a Single Tuned Passive Filter on Harmonics and Distribution Transformers." International Journal of Power Electronics and Drive Systems (IJPEDS) 9, no. 3 (2018): 1285. http://dx.doi.org/10.11591/ijpeds.v9.i3.pp1285-1294.

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<span>Non-linear loads on power systems cause harmonics and losses in distribution transformers. Results of the measurements on the two distribution transformers showed several phase transformer test-driven development (TDD) values above the standard SPLN D5.004-1: 2012. The values were 5.58% in the phase transformer, T 1 and 5.48% and 6.10% in S and T phases of the second transformer, respectively. In the calculations, the transformer losses due to harmonic currents were 1.64 kW in the phase transformer T 1, and 1.64 kW and 1.82 kW in the S and T phases of transformer 2, respectively. D

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45

Chen, Y. L. "Optimal Multi-Objective Single-Tuned Harmonic Filter Planning." IEEE Transactions on Power Delivery 20, no. 2 (2005): 1191–97. http://dx.doi.org/10.1109/tpwrd.2002.844282.

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46

Xu, Kai, Yanlong Meng, Shufen Chen, Yi Li, Zhijun Wu, and Shangzhong Jin. "All-Dielectric Color Filter with Ultra-Narrowed Linewidth." Micromachines 12, no. 3 (2021): 241. http://dx.doi.org/10.3390/mi12030241.

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In this paper, a transmissive color filter with an ultra-narrow full width at half of the maximum is proposed. Exploiting a material with a high index of refraction and an extremely low extinction coefficient in the visible range allows the quality factor of the filter to be improved. Three groups of GaP/SiO2 pairs are used to form a Distributed Brag reflector in a symmetrical Fabry-Pérot cavity. A band-pass filter which is composed of ZnS/SiO2 pairs is also introduced to further promote the purity of the transmissive spectrum. The investigation manifests that a series of tuned spectrum with a

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47

Obando, José Abel, and Victoria Serrano. "Implementation of a Hybrid ANN-Based Filter for the Reduction of Harmonic Currents." European Journal of Electrical Engineering 23, no. 3 (2021): 265–72. http://dx.doi.org/10.18280/ejee.230311.

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Harmonic distortions caused by non-linear loads (NLLs) affect the behavior of electrical systems, creating harmonics in the fundamental signal. As a result, this deteriorates the power quality. Therefore, this work proposes the implementation of a hybrid filter based on an artificial neural network (ANN) control system, focused on subharmonic, interharmonic and odd harmonic distortions generated by a three-pulse cycloconverter. In addition, a passive double tuned filter was implemented to damp even and odd harmonics. As a result, the simulation performed in MATLAB/SIMULINK showed that the resp

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48

Chourasia, Nitesh K., Ankita Srivastava, Vinay Kumar, and Ritesh Kumar Chourasia. "Doubly electrically tuned cylindrical Bragg fiber waveguide inline optical filter for multiwavelength LASER applications." Materials Today Communications 25 (December 2020): 101620. http://dx.doi.org/10.1016/j.mtcomm.2020.101620.

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49

Dayal, Har. "Variable bandwidth, wide tunable frequency, voltage tuned filter." International Journal of RF and Microwave Computer-Aided Engineering 14, no. 1 (2003): 64–72. http://dx.doi.org/10.1002/mmce.10119.

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50

Woo Hyung Lee and P. Mazumder. "Motion Detection by Quantum-Dots-Based Velocity-Tuned Filter." IEEE Transactions on Nanotechnology 7, no. 3 (2008): 355–62. http://dx.doi.org/10.1109/tnano.2007.915019.

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