Results 31 to 40 of about 137,852 (257)
Role of Nanoimprint Lithography for Strongly Miniaturized Optical Spectrometers
Nanomaterials, 2021 Optical spectrometers and sensors have gained enormous importance in metrology and information technology, frequently involving the question of size, resolution, sensitivity, spectral range, efficiency, reliability, and cost.
Hartmut Hillmer +7 more
doaj +1 more source
Design of programmable multi-wavelength tunable filter on lithium niobate
Results in Physics, 2019 Tunable optical filters have a wide range of applications, especially in optical sensing systems and optical communication systems. In this letter, a programmable multi-wavelength tunable filter on Lithium Niobate (LN) is designed.
Yuan Yao +6 more
doaj +1 more source
Power-Efficient Electronically Tunable Fractional-Order Filter
Fractal and Fractional, 2023 This article describes a low-voltage, low-power fractional-order low-pass filter (FO-LPF) of order 1 + α, which is implemented using a voltage differencing differential difference amplifier (VDDDA).
Sadaf Tasneem +3 more
doaj +1 more source
TTF: a flexible approach to narrowband imaging [PDF]
, 1997 The Taurus Tunable Filter (TTF) is a tunable narrowband interference filter covering wavelengths from 6300 A to the sensitivity drop-off of conventional CCDs (9600 A), although a blue `arm' (3700-6500 A) is to be added by the end of 1997.
Bland-Hawthorn, J., Jones, D. H.
core +3 more sources
LOW PASS AND QUAD BAND PASS TUNABLE FILTER BASED ON STUB RESONATOR TECHNIQUE [PDF]
Jordanian Journal of Computers and Information Technology, 2019 An electronically tunable multi-passband filter using one varactor diode is implemented based on transmission line stub method for passing several most favourable applications through multiple operating bands.
Yanal S. Faouri +3 more
doaj +1 more source
Tunable photonic crystal filter for terahertz frequency applications [PDF]
, 2003 In this Paper we investigate a tunable metallic photonic crystal filter with a novel mechanical tuning method, suitable for use in terahertz frequency applications.
Blaikie, R.J. +2 more
core +1 more source
Tunable Active Band-Pass RC-Filter
Известия высших учебных заведений России: Радиоэлектроника, 2018 This article provides a technique for design and simulation of an active second order band-pass filter with lineal tuning of Q-factor and independent tuning over a wide range of resonant frequency and transfer coefficient. The tunable band-pass RC-filter
Yu. M. Inshakov, A. V. Belov
doaj +1 more source
IEEE Access, 2020 Based on tapered Triple-Core Photonic Crystal Fiber (TCPCF), a high performance tunable Dual-Wavelength Erbium-Doped Fiber Laser (DW-EDFL) is proposed and experimentally demonstrated.
Zijuan Tang +6 more
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Tunable Add–Drop Filter With Hollow Bottlelike Microresonators
IEEE Photonics Journal, 2018 In this paper, we report the narrow-band tunable add–drop filter (ADF) based on the hollow bottlelike microresonator with two taper fibers corresponding to the bus and drop waveguides.
Zhong-Hao Zhou +5 more
doaj +1 more source
Frontiers in Physics, 2022 Tunable 2∼3-μm femtosecond lasers are of high interest in various applications, such as medical diagnostics and molecular spectroscopy. Cr:ZnSe/ZnS is extremely suited for broadband tunable femtosecond lasers due to its excellent emission bands.
Qing Wang +11 more
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