Results 51 to 60 of about 74,644 (117)

Multiple beam Michelson-based interferometer [PDF]

open access: yes, 2009
We present a modification to the classic Michelson interferometer that allows the interference of multiple beams with equal amplitude. The proposed architecture presents the same advantages and simplicity as those of a classic Michelson interferometer ...
JULIAN DAVID SANCHEZ DE LA LLAVE   +1 more
core  

Fluid flow analysis by a modified, white light, Lau interferometer [PDF]

open access: yes, 2002
This paper presents a sharp focussing schlieren system based upon a modified Lau interferometer. A method of reducing the depth of focus of the system is demonstrated and the development of the system to study large fields of view by theincorporation of ...
Waddell, Peter   +4 more
core   +3 more sources

Self-Mixing Diode Laser Interferometry [PDF]

open access: yes, 2010
Self-mixing interferometry in a laser diode is a very powerful tool in measurement science. The Self-mixing interferometer is a very robust and low cost interferometer with extreme simplicity in alignment and setup.
Shrestha, Pawan Kumar
core  

Pseudo-heterodyne signal processing scheme for interrogation of fiber Bragg grating sensor arrays [PDF]

open access: yes, 1998
An intensity-based interrogation technique for arrays of fiber bragg grating (FBG) sensors is reported. The technique is based upon each FBG forming one mirror of a Michelson interferometer.
Clare K. Chatterjea   +5 more
core   +1 more source

A compact interferometer insensitive to scanning speed variations

open access: yes, 2013
A compact moving optical-wedge interferometer (CMOWI) is presented. This device consists of a moving optical wedge (MOW), a fixed optical wedge (FOW), a fixed compensating plate, and a beam-splitting cube.
Zhao, Baochang   +2 more
core   +1 more source

Coherent atomic manipulation and cooling using composite optical pulse sequences

open access: yes, 2014
The laser cooling of atoms to ultracold temperatures has propelled many groundbreaking advances in fundamental research and precision measurement, through such applications as quantum simulators and interferometric sensors. Laser cooling remains, however,
Dunning, Alexander
core   +1 more source

In-Situ Surface Inspection Using White Light Channelled Spectrum Interferometer [PDF]

open access: yes
We introduce a new environmentally robust optical interferometry system for fast surface profile measurement. The proposed white light channelled spectrum Interferometer (WLCSI) is effective for applications in on-line surface inspection because it ...
Jiang, Xiang, Gao, Feng, Tang, Dawei
core   +2 more sources

Lensmeter using a lateral shearing interferometer

open access: yes, 2012
The use of a laser shear interferometer for checking the collimation condition within a lensmeter is proposed. The interferometer consist of a wedged glass plate which produces a shear along the ortogonal direction to the wedge; when the fringes at the ...
Fermín Salomón Granados Agustín   +4 more
core   +1 more source

Analysis of Factors Associated With the Tear Film Lipid Layer Thickness in Normal Eyes and Patients With Dry Eye Syndrome

open access: yes, 2017
PURPOSE: To determine the effects of clinical variables, including age, sex, history of refractive or cataract surgery, contact lens use, and ocular surface and meibomian gland parameters on the lipid layer thickness (LLT) in normal subjects and patients
김태임   +4 more
core   +1 more source

Lacrimal and meibomian gland evaluation in dry eye disease: A mini-review. [PDF]

open access: yesIndian J Ophthalmol, 2023
Singh S   +5 more
europepmc   +1 more source

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