Direction-sensitive transverse velocity measurement by phase-modulated structured light beams
The use of structured light beams to detect the velocity of targets moving perpendicularly to the beam's propagation axis opens new avenues for remote sensing of moving objects. However, determining the direction of motion is still a challenge because detection is usually done by means of an in...
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| Veröffentlicht in: | Optics letters 2014-09, Vol.39 (18), p.5415-5418 |
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| container_title | Optics letters |
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| creator | Rosales-Guzmán, Carmelo Hermosa, Nathaniel Belmonte, Aniceto Torres, Juan P |
| description | The use of structured light beams to detect the velocity of targets moving perpendicularly to the beam's propagation axis opens new avenues for remote sensing of moving objects. However, determining the direction of motion is still a challenge because detection is usually done by means of an interferometric setup, which only provides an absolute value of the frequency shift. In this Letter, we present a novel method that addresses this issue. It uses dynamic control of the phase in the transverse plane of the structured light beam so that the direction of the particles' movement can be deduced. This is done by noting the change in the magnitude of the frequency shift as the transverse phase of the structured light is moved appropriately. We demonstrate our method with rotating microparticles that are illuminated by a Laguerre-Gaussian beam with a rotating phase about its propagation axis. Our method, which only requires a dynamically configurable optical beam generator, can easily be used with other types of motion by appropriate engineering and dynamic modulation of the phase of the light beam. |
| doi_str_mv | 10.1364/OL.39.005415 |
| format | Article |
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Our method, which only requires a dynamically configurable optical beam generator, can easily be used with other types of motion by appropriate engineering and dynamic modulation of the phase of the light beam.</description><subject>Beams (radiation)</subject><subject>Ciències de la visió</subject><subject>Configurable</subject><subject>Doppler effect</subject><subject>Doppler, Efecte</subject><subject>Dynamic control</subject><subject>Enginyeria electrònica</subject><subject>Frequency shift</subject><subject>Frequency shifter</subject><subject>Laser communication systems</subject><subject>Light beams</subject><subject>Làser</subject><subject>Microparticles</subject><subject>Modulation</subject><subject>Optoelectrònica</subject><subject>Orbital angular-momentum</subject><subject>Physical optics</subject><subject>Remote sensing</subject><subject>Rotating</subject><subject>Sistemes de comunicació per làser</subject><subject>Teledetecció</subject><subject>Velocity measurement</subject><subject>Àrees temàtiques de la UPC</subject><subject>Òptica física</subject><issn>0146-9592</issn><issn>1539-4794</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>XX2</sourceid><recordid>eNqFkctP4zAQxi3ECkrhxhnlyGHT9St2fETAAlKlXnaPK8txJtQoj-JxKvW_31QtcOQwGs3o981DHyHXjC6YUPLXarkQZkFpIVlxQmasECaX2shTMqNMqtwUhp-TC8Q3SqnSQpyRc66kUrxUM_LvIUTwKQx9jtBjSGELWYquxy1EhGwL7eBD2mUdOBwjdNCnrNplm7VDyLuhHluXoM4wxdGnCaizNryuJwZch5fkR-NahKtjnpO_vx__3D_ny9XTy_3dMvdS6pSrogYqTdPQsjalrzTllS6V3_eA0RoqJWQhqGCiKcErZyYZM6KovG5q78WcsMNcj6O300MQvUt2cOGr2AenmlsuS6n1pLk9aDZxeB8Bk-0Cemhb18MwomWac8NLOq39HqWMMaVMOaE_j5fEATFCYzcxdC7uLKN275ddLa0w9uDXhN8cJ49VB_Un_GGQ-A8supE-</recordid><startdate>20140915</startdate><enddate>20140915</enddate><creator>Rosales-Guzmán, Carmelo</creator><creator>Hermosa, Nathaniel</creator><creator>Belmonte, Aniceto</creator><creator>Torres, Juan P</creator><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>7X8</scope><scope>XX2</scope></search><sort><creationdate>20140915</creationdate><title>Direction-sensitive transverse velocity measurement by phase-modulated structured light beams</title><author>Rosales-Guzmán, Carmelo ; Hermosa, Nathaniel ; Belmonte, Aniceto ; Torres, Juan P</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c447t-65de049ff08d98cb702b786c049fe10deb634530313f8ec6a94471935bc7fdcc3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Beams (radiation)</topic><topic>Ciències de la visió</topic><topic>Configurable</topic><topic>Doppler effect</topic><topic>Doppler, Efecte</topic><topic>Dynamic control</topic><topic>Enginyeria electrònica</topic><topic>Frequency shift</topic><topic>Frequency shifter</topic><topic>Laser communication systems</topic><topic>Light beams</topic><topic>Làser</topic><topic>Microparticles</topic><topic>Modulation</topic><topic>Optoelectrònica</topic><topic>Orbital angular-momentum</topic><topic>Physical optics</topic><topic>Remote sensing</topic><topic>Rotating</topic><topic>Sistemes de comunicació per làser</topic><topic>Teledetecció</topic><topic>Velocity measurement</topic><topic>Àrees temàtiques de la UPC</topic><topic>Òptica física</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Rosales-Guzmán, Carmelo</creatorcontrib><creatorcontrib>Hermosa, Nathaniel</creatorcontrib><creatorcontrib>Belmonte, Aniceto</creatorcontrib><creatorcontrib>Torres, Juan P</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>MEDLINE - Academic</collection><collection>Recercat</collection><jtitle>Optics letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Rosales-Guzmán, Carmelo</au><au>Hermosa, Nathaniel</au><au>Belmonte, Aniceto</au><au>Torres, Juan P</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Direction-sensitive transverse velocity measurement by phase-modulated structured light beams</atitle><jtitle>Optics letters</jtitle><addtitle>Opt Lett</addtitle><date>2014-09-15</date><risdate>2014</risdate><volume>39</volume><issue>18</issue><spage>5415</spage><epage>5418</epage><pages>5415-5418</pages><issn>0146-9592</issn><eissn>1539-4794</eissn><abstract>The use of structured light beams to detect the velocity of targets moving perpendicularly to the beam's propagation axis opens new avenues for remote sensing of moving objects. 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Our method, which only requires a dynamically configurable optical beam generator, can easily be used with other types of motion by appropriate engineering and dynamic modulation of the phase of the light beam.</abstract><cop>United States</cop><pmid>26466286</pmid><doi>10.1364/OL.39.005415</doi><tpages>4</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Optics letters, 2014-09, Vol.39 (18), p.5415-5418 |
| issn | 0146-9592 1539-4794 |
| language | eng |
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| source | Recercat; Optica Publishing Group Journals |
| subjects | Beams (radiation) Ciències de la visió Configurable Doppler effect Doppler, Efecte Dynamic control Enginyeria electrònica Frequency shift Frequency shifter Laser communication systems Light beams Làser Microparticles Modulation Optoelectrònica Orbital angular-momentum Physical optics Remote sensing Rotating Sistemes de comunicació per làser Teledetecció Velocity measurement Àrees temàtiques de la UPC Òptica física |
| title | Direction-sensitive transverse velocity measurement by phase-modulated structured light beams |
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