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Showing 1 to 20 of 39 for “"Fabry-Perot Cavity"”.
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MEMS enabled Fabry-Perot cavity for cQED experiments
… The important exigency of an integrated micro cavity consisting of a micro mirror and a fiber optics cable are; alignment between them to form a small cavity volume and actuation to allow for adjusment of the cavity length. In this Master thesis the fabrication of 1-D v-shape or chevron thermal …
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Radiation pressure effects in a suspended Fabry-Perot cavity
… induced effects in a high-power optical cavity. These effects play an important role in next generation gravitational wave detectors, as well as quantum non-demolition devices. We describe two experiments in which a low-transmission input mirror and near-perfectly-reflective end mirror …
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Fabry-Perot Cavity, Pulsed Fourier Transform Molecular Beam Microwave Spectroscopy
… spectroscopy. After a short introduction to cavity spectrometers, the foundations of the theory of a Fabry-Perot cavity, of molecular polarization and of molecular beams is presented as it relates to this spectrometer. The block diagram is presented that shows how these techniques are …
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The Theory of Pulsed Fourier Transform Microwave Spectroscopy Carried out in a Fabry-Perot Cavity
Submitted by Carolyn Rauber (crauber2@illinois.edu) on 2011-06-03T18:43:43Z No. of bitstreams: 1 1981_campbell.pdf: 5517827 bytes, checksum: 9634820970633963d9df7551dd003999 (MD5)
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Possibility of positive-pulse switching in systems of nonlinear Fabry-Perot cavities
The conventional way of using a nonlinear Fabry-Perot cavity as an optical memory requires a negative pulse input to reset the state of the cavity. The possibility of using positive pulses to turn a system of nonlinear Fabry-Perot cavities on and off is studied and it was found that positive pulse …
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Rotational Spectroscopy of Weakly-Bound Complexes Utilizing a High-Temperature Molecular Source (Microwave)
… microwave spectrometer, employing a Fabry-Perot cavity and a pulsed, supersonic nozzle. A high-temperature molecular source that permits the study of complexes involving low-vapor-pressure species is presented.
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Structure and Dynamics of Van Der Waals Molecules From Microwave Spectroscopy
… Fourier transform microwave spectroscopy in a Fabry-Perot cavity with a pulsed supersonic nozzle as the molecular source. Analyses of the spectra give information concerning the structures and intramolecular potential energy surfaces of these complexes.
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The Rotational Zeeman Effect in Van Der Waals Molecules
… microwave spectrometer employing an evacuated Fabry-Perot cavity located inside the bore of a superconducting solenoid is discussed. The zero field rotational spectrum of small hydrocarbon molecules with HX(X = F, Cl, CN) is analyzed and along with the Zeeman effect provides new kinds of …
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High temperature fiber optic strain sensing
… An interferometric based sensor makes use of a Fabry-Perot cavity created by aligning two fibers in a splice tube with a small gap in between. The Fabry-Perot based sensors' maximum operating temperature is 950°C. Attachment methods and sensor design are discussed as well as the presentation of …
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Microwave Spectroscopy of Weakly Bound Molecular Complexes
… gas. The expanding gas is directed into a Fabry-Perot cavity where the rotational transitions of the species of interest are excited with a microwave pulse. The subsequent coherent molecular emission can be detected and analyzed to yield structural and electronic information about the …
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Laser Frequency Stabilization With Pound-Drever-Hall Technique
… un-stabilized linewidth. It uses a high-finesse Fabry-Perot cavity, which is mechanically and thermally isolated, as a frequency reference to measure the time-varying frequency of the input laser. An electronic feedback loop works to correct the frequency error and maintain constant optical power.
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Sol-gel synthesis of one-dimensional photonic bandgap structures
… and 110 nm in TM-polarization. A microcavity, or narrowband filter, was fabricated with a TiO2 Fabry-Perot cavity sandwiched between two mirrors of three layer pairs each. The resonant cavity corresponded to a wavelength of roughly 1500 nm and shifted to shorter wavelengths with …
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Design and Optimization of Nanoplasmonic Waveguide Devices
… cavities. The optimized multisection cavity switches lead to greatly enhanced modulation depth compared to optimized conventional Fabry-Perot cavity switches. We find that the modulation depth of the optimized multisection cavity switches is greatly enhanced compared to the optimized …
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Terahertz laser frequency combs : devices and applications
… forming a frequency comb state where dispersed cavity modes of the Fabry-Perot cavity are synchronized by third order nonlinearity. With proper dispersion engineering, we have shown that it is possible to create QCL frequency combs at terahertz wavelengths, which possess broadband coverage in a …
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Development And Characterization Of Beamforming Antenna Systems
… for customized RFID systems. In this work, an Fabry-Perot Cavity (FPC) antenna system consisting of a single source and frequency selective surface (FSS) is proposed (chapter 2) and investigated. Since the FPC antenna system removes complicated feedline mechanism in array antenna system, it …
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Depletion, quantum jumps, and temperature measurements of ⁸⁸Sr⁺ ions in a linear Paul Trap
… in Iodine to stabilize the length of a Fabry-Perot cavity for laser locking. After constructing this laser, we measured an unsuitable experimental stability of 10 MHz over 5 minutes. A completely new monolithic laser system was built, providing better environmental isolation and a …
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A Narrow-Linewidth Laser at 1550 nm Using the Pound-Drever-Hall Stabilization Technique
… linewidth of 2 kHz. It uses a high-finesse Fabry-Perot cavity, which is mechanically and thermally isolated, as a frequency reference to measure the time-varying frequency of the input laser. An electronic feedback loop works to correct the frequency error and maintain constant optical …
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Extrinsic Fabry-Perot interferometer for surface acoustic wave measurement
… acoustic wave sensor based on an extrinsic Fabry-Perot interferometer is described. A single-mode fiber, used as the input/output fiber, and a multimode fiber, used mainly as a reflector, form an air-gap that acts as a low-finesse Fabry-Perot cavity. The Fresnel reference reflection from the …
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Study of Multimode Extrinsic Fabry-Perot Interferometric Fiber Optic Sensor on Biosensing
… sensor has been developed based on extrinsic Fabry-Perot interferometry (EFPI) for the measurement of optical thickness in self-assembled thin film layers as well as for the immunosensing test. The sensor was fabricated by connecting a multimode fiber (MMF) and a silica wafer. A Fabry-Perot …
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Diffractive gratings in high-precision interferometry for gravitational wave detection
… phase signal. For the end-mirror tilt of a 3 km Fabry-Perot arm cavity as used in gravitational wave detectors, this was found to set quite severe isolation requirements. This result was supported by a bench-top experiment, and by collaborative work on the Joint Interferometer Facility (JIF) …
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