Patent application number | Description | Published |
20090027689 | METHOD AND APPARATUS FOR PERFORMING OPTICAL IMAGING USING FREQUENCY-DOMAIN INTERFEROMETRY - An apparatus and method are provided. In particular, at least one first electro-magnetic radiation may be provided to a sample and at least one second electro-magnetic radiation can be provided to a non-reflective reference. A frequency of the first and/or second radiations varies over time. An interference is detected between at least one third radiation associated with the first radiation and at least one fourth radiation associated with the second radiation. Alternatively, the first electro-magnetic radiation and/or second electro-magnetic radiation have a spectrum which changes over time. The spectrum may contain multiple frequencies at a particular time. In addition, it is possible to detect the interference signal between the third radiation and the fourth radiation in a first polarization state. Further, it may be preferable to detect a further interference signal between the third and fourth radiations in a second polarization state which is different from the first polarization state. The first and/or second electro-magnetic radiations may have a spectrum whose mean frequency changes substantially continuously over time at a tuning speed that is greater than 100 Tera Hertz per millisecond. | 01-29-2009 |
20090273777 | APPARATUS AND METHOD FOR CROSS AXIS PARALLEL SPECTROSCOPY - An exemplary embodiment of apparatus and method to measure and filter the spectrum of electro-magnetic radiation using multiple dispersive elements, such as diffraction gratings or VIPA etalons, concatenated in a cross-axis orthogonal arrangement can be provided. For example, it is possible to receive at least one first electro-magnetic radiation and generate at least one second electro-magnetic radiation using at least one first spectral separating arrangement. A first spectrum of the second electro-magnetic radiation can be dispersed along at least one first dispersive axis with respect to a propagation direction of the second electro-magnetic radiation. In addition, it is possible to, using at least one second arrangement, receive the second electro-magnetic radiation and produce at least one third electromagnetic radiation having a second spectrum dispersed along at least one second dispersive axis with respect to a propagation direction of the third electromagnetic radiation. The orientations of the respective first and second dispersive axes can be different from one another. The first and/or second dispersive arrangements can be VIPA etalon arrangements. | 11-05-2009 |
20090323056 | METHODS, ARRANGEMENTS AND SYSTEMS FOR OBTAINING INFORMATION ASSOCIATED WITH A SAMPLE USING OPTICAL MICROSCOPY - Exemplary embodiments of methods, arrangements and systems for obtaining information about a sample can be provided. For example, in one exemplary embodiment, it is possible to receive a first electro-magnetic radiation from a sample which is based on a second electro-magnetic radiation forwarded to the sample. The first electro-magnetic radiation may have a first frequency and the second electro-magnetic radiation may have a second frequency which is different from the first frequency. The difference between the first and second frequencies can be based on an acoustic wave inside the sample related to at least one characteristic of the sample. Further, it is possible to receive at least a portion of the first electromagnetic radiation and separate it into a particular finite number (N) of frequency component radiations. In addition, it is possible to receive a particular energy of more than 1/N of energy of the third electro-magnetic radiation, and generate information associated with the sample. Certain exemplary embodiments of the present invention are capable of obtaining information associated with a sample, particularly its mechanical properties, non-contact using electromagnetic radiation. | 12-31-2009 |
20100309477 | METHOD AND APPARATUS FOR PERFORMING OPTICAL IMAGING USING FREQUENCY-DOMAIN INTERFEROMETRY - An apparatus and method are provided. In particular, at least one first electro-magnetic radiation may be provided to a sample and at least one second electro-magnetic radiation can be provided to a non-reflective reference. A frequency of the first and/or second radiations varies over time. An interference is detected between at least one third radiation associated with the first radiation and at least one fourth radiation associated with the second radiation. Alternatively, the first electro-magnetic radiation and/or second electro-magnetic radiation have a spectrum which changes over time. The spectrum may contain multiple frequencies at a particular time. In addition, it is possible to detect the interference signal between the third radiation and the fourth radiation in a first polarization state. Further, it may be preferable to detect a further interference signal between the third and fourth radiations in a second polarization state which is different from the first polarization state. The first and/or second electro-magnetic radiations may have a spectrum whose mean frequency changes substantially continuously over time at a tuning speed that is greater than 100 Tera Hertz per millisecond. | 12-09-2010 |
20110224541 | METHODS AND ARRANGEMENTS FOR ANALYSIS, DIAGNOSIS, AND TREATMENT MONITORING OF VOCAL FOLDS BY OPTICAL COHERENCE TOMOGRAPHY - Exemplary embodiments of an apparatus and a method can be provided. For example, a first information can be obtained for at least one signal that is (i) at least partially periodic and (ii) associated with at least one structure. In addition, a second information associated with the structure can be generated at multiple time points within a single cycle of the at least one signal. The second information can include information for the structure below a surface thereof. Further, it is possible to generate a third information based on the first information and the second information, where the third information is associated with at least one characteristic of the structure. | 09-15-2011 |
20110226940 | FUSED FIBER OPTIC COUPLER ARRANGEMENT AND METHOD FOR USE THEREOF - Exemplary embodiments of an article of manufacture and method according to the present disclosure are provided. For example, a first multi-clad fiber arrangement can be provided that comprises a first core and at least one first cladding which is structured to propagate at least one first electro-magnetic radiation therethrough. A second multi-clad fiber arrangement can also be provided that comprises a second core and at least one second cladding which is structured to propagate at least one second electro-magnetic radiation therethrough. Further, at least one portion can be provided in which the first and second claddings are fused to one another. | 09-22-2011 |
20110266470 | APPARATUS, METHOD AND SYSTEM FOR GENERATING OPTICAL RADIATION FROM BIOLOGICAL GAIN MEDIA - In one exemplary embodiment, an apparatus can be provided which includes at least one biological medium that causes gain. According to another exemplary embodiment, an arrangement can be provided which is configured to be provided in an anatomical structure. This exemplary arrangement can include at least one emitter having a cross-sectional area of at most 10 microns within the anatomical structure, and which is configured to generate at least one laser radiation. In a further exemplary embodiment, an apparatus can be provided which can include at least one medium which is configured to cause gain; and at least one optical biological resonator which is configured to provide an optical feedback to the medium. In still another exemplary embodiment, a process can be whereas, a solution of an optical medium can be applied to a substrate. Further, it is possible to generate a wave guide having a shape that is defined by (i) at least one property of the solution of the optical medium, or (ii) drying properties thereof. | 11-03-2011 |
20110299091 | METHOD AND APPARATUS FOR PERFORMING OPTICAL IMAGING USING FREQUENCY-DOMAIN INTERFEROMETRY - An apparatus and method are provided. In particular, at least one first electro-magnetic radiation may be provided to a sample and at least one second electro-magnetic radiation can be provided to a non-reflective reference. A frequency of the first and/or second radiations varies over time. An interference is detected between at least one third radiation associated with the first radiation and at least one fourth radiation associated with the second radiation. Alternatively, the first electro-magnetic radiation and/or second electro-magnetic radiation have a spectrum which changes over time. The spectrum may contain multiple frequencies at a particular time. In addition, it is possible to detect the interference signal between the third radiation and the fourth radiation in a first polarization state. Further, it may be preferable to detect a further interference signal between the third and fourth radiations in a second polarization state which is different from the first polarization state. The first and/or second electro-magnetic radiations may have a spectrum whose mean frequency changes substantially continuously over time at a tuning speed that is greater than 100 Tera Hertz per millisecond. | 12-08-2011 |
20120302862 | METHODS AND ARRANGEMENTS FOR OBTAINING INFORMATION AND PROVIDING ANALYSIS FOR BIOLOGICAL TISSUES - Arrangements and methods can be provided for determining information associated with at least one section of at least one biological tissue. For example, it is possible to provide at least one first electro-magnetic radiation to the section(s) of the biological tissue(s) in vivo so as to interact with at least one acoustic wave in the biological tissue(s). At least one second electro-magnetic radiation can be produced based on the interaction. At least one portion of the at least one second electro-magnetic radiation can be received, and the information associated with the section(s) of the biological tissue(s) can be determined based on the portion of the second electromagnetic radiation(s). | 11-29-2012 |
20120316434 | PROCESS, ARRANGEMENTS AND SYSTEMS FOR PROVIDING FREQUENCY DOMAIN IMAGING OF A SAMPLE - Exemplary apparatus, arrangement and method can be provided for obtaining information associated with an anatomical structure or sample using optical microscopy. A radiation can include first electromagnetic radiation(s) directed to an anatomical sample and at least one second electromagnetic radiation directed to a reference. A wavelength of the radiation can vary over time, and the wavelength can be shorter than approximately 1150 nm. An interference can be detected between third and forth radiations associated with the first, second and fourth radiation, respectively. At least one image corresponding to portion(s) of the sample can be generated using data associated with the interference. Source arrangement(s) can be provided which is configured to provide an electromagnetic radiation having a wavelength that varies over time. A period of a variation of the wavelength of the first electromagnetic radiation(s) can be shorter than 1 millisecond, and the wavelength can be shorter than approximately 1150 nm. | 12-13-2012 |
20130128274 | METHOD AND APPARATUS FOR PERFORMING OPTICAL IMAGING USING FREQUENCY-DOMAIN INTERFEROMETRY - An apparatus and method are provided. In particular, at least one first electro-magnetic radiation may be provided to a sample and at least one second electro-magnetic radiation can be provided to a non-reflective reference. A frequency of the first and/or second radiations varies over time. An interference is detected between at least one third radiation associated with the first radiation and at least one fourth radiation associated with the second radiation. Alternatively, the first electro-magnetic radiation and/or second electro-magnetic radiation have a spectrum which changes over time. The spectrum may contain multiple frequencies at a particular time. In addition, it is possible to detect the interference signal between the third radiation and the fourth radiation in a first polarization state. Further, it may be preferable to detect a further interference signal between the third and fourth radiations in a second polarization state which is different from the first polarization state. The first and/or second electro-magnetic radiations may have a spectrum whose mean frequency changes substantially continuously over time at a tuning speed that is greater than 100 Tera Hertz per millisecond. | 05-23-2013 |
20150056143 | LIGHT-GUIDING HYDROGEL DEVICES FOR CELL-BASED SENSING AND THERAPY - A hydrogel-lightguide based sensory system susceptible to a stimulus signal produced by ambient and stimulating sensory cells embedded in a hydrogel body of the system. Sensory cells generate an optical signal (in response to a user-defined triggering with excitation light or, alternatively, due to bioluminescence) the properties of which, determined based on detection of such signal with an optical detector device, provide characterization of the stimulus and information required for user-defined activation of emitter cells encapsulated in the hydrogel. When activated, emitter cells generate matter and/or light directed to interact with the ambient. | 02-26-2015 |
20150077755 | METHOD AND APPARATUS FOR PERFORMING OPTICAL IMAGING USING FREQUENCY-DOMAIN INTERFEROMETRY - An apparatus and method are provided. In particular, at least one first electro-magnetic radiation may be provided to a sample and at least one second electro-magnetic radiation can be provided to a non-reflective reference. A frequency of the first and/or second radiations varies over time. An interference is detected between at least one third radiation associated with the first radiation and at least one fourth radiation associated with the second radiation. Alternatively, the first electro-magnetic radiation and/or second electro-magnetic radiation have a spectrum which changes over time. The spectrum may contain multiple frequencies at a particular time. In addition, it is possible to detect the interference signal between the third radiation and the fourth radiation in a first polarization state. Further, it may be preferable to detect a further interference signal between the third and fourth radiations in a second polarization state which is different from the first polarization state. The first and/or second electro-magnetic radiations may have a spectrum whose mean frequency changes substantially continuously over time at a tuning speed that is greater than 100 Tera Hertz per millisecond. | 03-19-2015 |