Pub Date : 2010-07-12DOI: 10.1109/WIO.2010.5582519
K. Itoh, Y. Ozeki
We introduce stimulated Raman scattering microscopy which allows us to visualize unstained live cells with high sensitivity and high contrast. The shot-noise limited sensitivity can be achieved based on high-frequency lock-in detection using subharmonically synchronized two-color pulses.
{"title":"SRS microscopy as a low-invasive 3D bioimaging technique","authors":"K. Itoh, Y. Ozeki","doi":"10.1109/WIO.2010.5582519","DOIUrl":"https://doi.org/10.1109/WIO.2010.5582519","url":null,"abstract":"We introduce stimulated Raman scattering microscopy which allows us to visualize unstained live cells with high sensitivity and high contrast. The shot-noise limited sensitivity can be achieved based on high-frequency lock-in detection using subharmonically synchronized two-color pulses.","PeriodicalId":201478,"journal":{"name":"2010 9th Euro-American Workshop on Information Optics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128790269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-07-12DOI: 10.1109/WIO.2010.5582514
J. Son, M. Park
Among various parameters related with the quality of 3-D images, the perceived image depth and depth resolution are the most important parameters in 3-D images because they characterize the image. These parameter values are mostly determined by the stereo camera characteristics. However, the different view image mixing regions in the multiview 3-D imaging methods can improve the parameter values but many image defects can be introduced.
{"title":"Qualities of 3-D images","authors":"J. Son, M. Park","doi":"10.1109/WIO.2010.5582514","DOIUrl":"https://doi.org/10.1109/WIO.2010.5582514","url":null,"abstract":"Among various parameters related with the quality of 3-D images, the perceived image depth and depth resolution are the most important parameters in 3-D images because they characterize the image. These parameter values are mostly determined by the stereo camera characteristics. However, the different view image mixing regions in the multiview 3-D imaging methods can improve the parameter values but many image defects can be introduced.","PeriodicalId":201478,"journal":{"name":"2010 9th Euro-American Workshop on Information Optics","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126339294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-07-12DOI: 10.1109/WIO.2010.5582496
N. Nishchal, Tomi Pitkaaho, T. Naughton
We present a method of digital hologram watermarking using a Fresnel hologram of a real-world 3D object and the fractional Fourier transform. A watermark is encrypted using double random phase fractional Fourier domain encoding technique and then encoded into the digital hologram. The hologram is watermarked in a plane at some known distance from the object so that even if a new hologram is generated from the original hologram the watermark can always be traced by propagating the new hologram back to the object and then onto the watermark plane. The watermark is retrieved successfully using the correct encryption parameters. We consider both numerical (full complex field) and optoelectronic (phase-only) reconstruction methods. We obtain the watermark from different windows of the hologram corresponding to different reconstruction perspectives.
{"title":"Digital Fresnel hologram watermarking","authors":"N. Nishchal, Tomi Pitkaaho, T. Naughton","doi":"10.1109/WIO.2010.5582496","DOIUrl":"https://doi.org/10.1109/WIO.2010.5582496","url":null,"abstract":"We present a method of digital hologram watermarking using a Fresnel hologram of a real-world 3D object and the fractional Fourier transform. A watermark is encrypted using double random phase fractional Fourier domain encoding technique and then encoded into the digital hologram. The hologram is watermarked in a plane at some known distance from the object so that even if a new hologram is generated from the original hologram the watermark can always be traced by propagating the new hologram back to the object and then onto the watermark plane. The watermark is retrieved successfully using the correct encryption parameters. We consider both numerical (full complex field) and optoelectronic (phase-only) reconstruction methods. We obtain the watermark from different windows of the hologram corresponding to different reconstruction perspectives.","PeriodicalId":201478,"journal":{"name":"2010 9th Euro-American Workshop on Information Optics","volume":"43 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133390586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-07-12DOI: 10.1109/WIO.2010.5582520
K. Brenner, R. Buschlinger
We observed, that a simple binary phase grating under certain circumstances exhibits pronounced focusing properties. In the paraxial approximation, the on-axis intensity as a function of the grating duty cycle shows a perfect fractal behavior. We discuss the properties of lens scaling and phase binarization in the paraxial, the non-paraxial and the rigorous case. Furthermore, we investigate the optimal focusing conditions for binary phase gratings. Also, possible applications in light concentration, image scanning and wave-front sensing are discussed
{"title":"Fractal diffraction and focusing properties of binary phase gratings","authors":"K. Brenner, R. Buschlinger","doi":"10.1109/WIO.2010.5582520","DOIUrl":"https://doi.org/10.1109/WIO.2010.5582520","url":null,"abstract":"We observed, that a simple binary phase grating under certain circumstances exhibits pronounced focusing properties. In the paraxial approximation, the on-axis intensity as a function of the grating duty cycle shows a perfect fractal behavior. We discuss the properties of lens scaling and phase binarization in the paraxial, the non-paraxial and the rigorous case. Furthermore, we investigate the optimal focusing conditions for binary phase gratings. Also, possible applications in light concentration, image scanning and wave-front sensing are discussed","PeriodicalId":201478,"journal":{"name":"2010 9th Euro-American Workshop on Information Optics","volume":"129 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124234300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-07-12DOI: 10.1109/WIO.2010.5582491
O. Angelsky, C. Zenkova, M. Gorsky, N. V. Gorodyns'ka
The paper shows the possibilities of defining the degree of correlation of mutually orthogonal superposing circularly-polarized and linearly-polarized plane waves. The lack of visibility of the resulting distribution suggests the use of the reference wave as an alternative method for estimating the coherence properties of interacting fields.
{"title":"About methods of estimating the correlation properties of circularly-polarized and linearly-polarized plane waves","authors":"O. Angelsky, C. Zenkova, M. Gorsky, N. V. Gorodyns'ka","doi":"10.1109/WIO.2010.5582491","DOIUrl":"https://doi.org/10.1109/WIO.2010.5582491","url":null,"abstract":"The paper shows the possibilities of defining the degree of correlation of mutually orthogonal superposing circularly-polarized and linearly-polarized plane waves. The lack of visibility of the resulting distribution suggests the use of the reference wave as an alternative method for estimating the coherence properties of interacting fields.","PeriodicalId":201478,"journal":{"name":"2010 9th Euro-American Workshop on Information Optics","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120952439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-07-12DOI: 10.1109/WIO.2010.5582488
A. Stern, Y. Rivenson, B. Javidi
Superresolution is typically achieved by taking multiple slightly different exposures. Here we present a superresolution technique that requires only a single exposure. Inspired by the compressive sensing approach that takes advantage of the information redundancy in typical images we show that true superresolution is feasible from a single exposure. The single shot superresolution system is based on the well known double random phase encoding setup which was broadly investigated for its encryption purposes. It is shown that combining double random phase encoding imaging with a compressive sensing based reconstruction technique, can super-resolve both diffraction and geometrical limited resolution imaging.
{"title":"Compressive imaging for superresolution from a single exposure","authors":"A. Stern, Y. Rivenson, B. Javidi","doi":"10.1109/WIO.2010.5582488","DOIUrl":"https://doi.org/10.1109/WIO.2010.5582488","url":null,"abstract":"Superresolution is typically achieved by taking multiple slightly different exposures. Here we present a superresolution technique that requires only a single exposure. Inspired by the compressive sensing approach that takes advantage of the information redundancy in typical images we show that true superresolution is feasible from a single exposure. The single shot superresolution system is based on the well known double random phase encoding setup which was broadly investigated for its encryption purposes. It is shown that combining double random phase encoding imaging with a compressive sensing based reconstruction technique, can super-resolve both diffraction and geometrical limited resolution imaging.","PeriodicalId":201478,"journal":{"name":"2010 9th Euro-American Workshop on Information Optics","volume":"86 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127440151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-07-12DOI: 10.1109/WIO.2010.5582517
J. Xavier, J. Joseph, C. Denz
We present a reconfigurable holographic approach for the fabrication of scalable complex structures of 3D photonic crystals (PCs) as well as photonic quasicrystals (PQCs) by a single step optical induction of refractive index modulation. By means of a spatial light modulator (SLM)-assisted approach we generate these reconfigurable and spatially tunable complex structures. The fabricated nonlinear photonic lattices in SBN∶Ce photorefractive medium are analyzed by plane wave guiding, momentum space spectroscopy, and far field diffraction pattern imaging.
{"title":"Reconfigurable holographic lithography for photonic structure fabrication","authors":"J. Xavier, J. Joseph, C. Denz","doi":"10.1109/WIO.2010.5582517","DOIUrl":"https://doi.org/10.1109/WIO.2010.5582517","url":null,"abstract":"We present a reconfigurable holographic approach for the fabrication of scalable complex structures of 3D photonic crystals (PCs) as well as photonic quasicrystals (PQCs) by a single step optical induction of refractive index modulation. By means of a spatial light modulator (SLM)-assisted approach we generate these reconfigurable and spatially tunable complex structures. The fabricated nonlinear photonic lattices in SBN∶Ce photorefractive medium are analyzed by plane wave guiding, momentum space spectroscopy, and far field diffraction pattern imaging.","PeriodicalId":201478,"journal":{"name":"2010 9th Euro-American Workshop on Information Optics","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121868802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-07-12DOI: 10.1109/WIO.2010.5582502
R. Martinez-Cuenca, L. Martínez-León, J. Lancis, G. Mínguez-Vega, O. Mendoza-Yero, E. Tajahuerce, P. Andrés, P. Clemente
We study the properties of the recording of off-axis holograms when a 10 fs pulsed laser is used as illumination source. A proper optical design involving one diffractive lens outside a Michelson interferometer enables the recording of full-field off-axis holograms with high resolution and optical sectioning. We demonstrate our approach with some experimental results that show optical sectioning with a maximum resolution of 3.5 µm. We note that the axial resolution of the technique is reduced up to 9 µm when the object beam travels through a few millimeters of glass due to the pulse broadening along dispersive media.
{"title":"Diffractive optics for high-resolution low-coherence digital holography","authors":"R. Martinez-Cuenca, L. Martínez-León, J. Lancis, G. Mínguez-Vega, O. Mendoza-Yero, E. Tajahuerce, P. Andrés, P. Clemente","doi":"10.1109/WIO.2010.5582502","DOIUrl":"https://doi.org/10.1109/WIO.2010.5582502","url":null,"abstract":"We study the properties of the recording of off-axis holograms when a 10 fs pulsed laser is used as illumination source. A proper optical design involving one diffractive lens outside a Michelson interferometer enables the recording of full-field off-axis holograms with high resolution and optical sectioning. We demonstrate our approach with some experimental results that show optical sectioning with a maximum resolution of 3.5 µm. We note that the axial resolution of the technique is reduced up to 9 µm when the object beam travels through a few millimeters of glass due to the pulse broadening along dispersive media.","PeriodicalId":201478,"journal":{"name":"2010 9th Euro-American Workshop on Information Optics","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125546932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-07-12DOI: 10.1109/WIO.2010.5582503
A. Faridian, D. Hopp, G. Pedrini, W. Osten, U. Eigenthaler, M. Hirscher
Different approaches to increase the resolution in digital holographic microscopy (DHM) are presented. A high resolution approach has been implemented in the off axis Deep UV DHM setup using oblique illumination to overcome the limitation introduced by the optical system and the theoretical resolution limit of 250 nm (according to Abbe criterion) has been verified, experimentally. A two view DHM system operating in the visible wavelength is also introduced to increase the resolution and contrast in 3D imaging of complex biological samples.
{"title":"Different approaches to increase resolution in DHM","authors":"A. Faridian, D. Hopp, G. Pedrini, W. Osten, U. Eigenthaler, M. Hirscher","doi":"10.1109/WIO.2010.5582503","DOIUrl":"https://doi.org/10.1109/WIO.2010.5582503","url":null,"abstract":"Different approaches to increase the resolution in digital holographic microscopy (DHM) are presented. A high resolution approach has been implemented in the off axis Deep UV DHM setup using oblique illumination to overcome the limitation introduced by the optical system and the theoretical resolution limit of 250 nm (according to Abbe criterion) has been verified, experimentally. A two view DHM system operating in the visible wavelength is also introduced to increase the resolution and contrast in 3D imaging of complex biological samples.","PeriodicalId":201478,"journal":{"name":"2010 9th Euro-American Workshop on Information Optics","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125498413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-07-12DOI: 10.1109/WIO.2010.5582489
A. Armani, H. Hunt, H. Hsu, H. Choi
Innovation in technology routinely leads the way for discovery in chemistry and biology. Most notably, x-ray diffraction data was instrumental in the elucidation of the structure of DNA. To explore the inherent complexity present in biological systems, existing technologies are being pushed to their limits. Once again, scientists are looking to engineers to create innovative solutions to enable their exploration and discovery. Many of the new methods currently being developed focus on increasing the sensitivity of the detection technique by inventing new devices as well as increasing the specificity of the device by engineering synthetic targeting moieties and improved attachment methods. This presentation will focus on new optical technologies with an emphasis on bio/chem-detection applications. Specifically, the experimental and theoretical optical properties of several new optical devices, which were designed for the express purpose of biological and chemical detection, will be discussed. Additionally, biomolecule attachment strategies which can improve both the stability and specificity of the sensor's surface functionalization will be presented.
{"title":"Optical devices for label-free detection","authors":"A. Armani, H. Hunt, H. Hsu, H. Choi","doi":"10.1109/WIO.2010.5582489","DOIUrl":"https://doi.org/10.1109/WIO.2010.5582489","url":null,"abstract":"Innovation in technology routinely leads the way for discovery in chemistry and biology. Most notably, x-ray diffraction data was instrumental in the elucidation of the structure of DNA. To explore the inherent complexity present in biological systems, existing technologies are being pushed to their limits. Once again, scientists are looking to engineers to create innovative solutions to enable their exploration and discovery. Many of the new methods currently being developed focus on increasing the sensitivity of the detection technique by inventing new devices as well as increasing the specificity of the device by engineering synthetic targeting moieties and improved attachment methods. This presentation will focus on new optical technologies with an emphasis on bio/chem-detection applications. Specifically, the experimental and theoretical optical properties of several new optical devices, which were designed for the express purpose of biological and chemical detection, will be discussed. Additionally, biomolecule attachment strategies which can improve both the stability and specificity of the sensor's surface functionalization will be presented.","PeriodicalId":201478,"journal":{"name":"2010 9th Euro-American Workshop on Information Optics","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122072104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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