{"id":37,"date":"2015-04-13T13:11:30","date_gmt":"2015-04-13T18:11:30","guid":{"rendered":"https:\/\/uwm.edu\/microspectroscopy-collaboratory\/?page_id=37"},"modified":"2026-03-04T07:36:43","modified_gmt":"2026-03-04T13:36:43","slug":"optimis-facility","status":"publish","type":"page","link":"https:\/\/uwm.edu\/microspectroscopy-collaboratory\/optimis-facility\/","title":{"rendered":"Biophysical Microspectroscopy Facility"},"content":{"rendered":"\n<div class=\"uwm-l-row uwm-l-row--6\">\n<div class=\"uwm-l-col\">\n<p class=\"size-p-lg\">Researchers are invited to use the Optical Micro-Spectroscopy Imaging Facility located in the Kenwood Interdisciplinary Research Complex Building, Room 2060. The Facility can be reserved for use, with fees for use based on user class. The <a href=\"https:\/\/uwm.edu\/microspectroscopy-collaboratory\/wp-content\/uploads\/sites\/280\/2015\/04\/20200625_UWMOptiMiS_Facility-Reservation-and-Billing-policies.docx\">Facility Reservation and Billing Policies (DOCX)<\/a> and the <a href=\"https:\/\/uwm.edu\/microspectroscopy-collaboratory\/wp-content\/uploads\/sites\/280\/2015\/04\/20150424_Revised-billing-authorization-form.pdf\">Billing Authorization Form (PDF)<\/a> must be printed and submitted prior to reserving time in the Facility.<\/p>\n<\/div>\n\n\n\n<div class=\"uwm-l-col\"><div class=\"content_block\" id=\"custom_post_widget-1140\">\n<div class=\"uwm-p-card uwm-p-card--color-head uwm-p-card--contact uwm-u-mb-40\"><div class=\"uwm-p-card--profile-header\"><div class=\"uwm-p-card--profile-header-text\"><div class=\"uwm-p-card--title\">Dr. Valerica Raicu<\/div><div class=\"uwm-p-card--subtitle\">Director<\/div><\/div><\/div><div class=\"uwm-p-card--body\"><div class=\"uwm-p-card--content\">\n<ul class=\"uwm-c-list--contact uwm-c-list--cleanlist\">\n<li><i class=\"fa-solid fa-envelope fa-fw\"><\/i><a href=\"mailto:vraicu@uwm.edu\">vraicu@uwm.edu<\/a><\/li>\n\n\n\n<li><i class=\"fa-solid fa-mobile-screen-button fa-fw\"><\/i><a href=\"tel:414-229-4969\">414-229-4969<\/a><\/li>\n\n\n\n<li><i class=\"fa-solid fa-location-dot fa-fw\"><\/i><a href=\"https:\/\/apps.uwm.edu\/map\/locations\/1972A\">Kenwood Interdisciplinary Research Complex, Room 2150<\/a><\/li>\n<\/ul>\n<p><a href=\"http:\/\/sites.uwm.edu\/raicu-research-group\/\">Research Group Website<\/a><br><a href=\"https:\/\/sites.uwm.edu\/riio-alliance\/\">RIIO Alliance Website<\/a><\/p><\/div><\/div><\/div>\n\n\n\n<p><\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<hr class=\"has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-microspectroscope-1\">Microspectroscope #1 <\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-technical-specifications\">Technical Specifications<\/h3>\n\n\n\n<div class=\"uwm-l-row uwm-l-row--6\">\n<div class=\"uwm-l-col\">\n<ul class=\"wp-block-list\">\n<li><strong>System Overview:<\/strong> Two-photon line excitation with spectral resolution<\/li>\n\n\n\n<li><strong>Laser:<\/strong> Spectra-Physics MaiTai HP with wavelength range of 750nm &#8211; 1040nm<\/li>\n\n\n\n<li><strong>Detector:<\/strong> Andor iXon X3 electron multiplying CCD<\/li>\n\n\n\n<li><strong>Microscope Stand:<\/strong> Nikon Eclipse Ti-E inverted<\/li>\n\n\n\n<li><strong>Objectives:<\/strong> 100x 1.45 N.A. oil, 60x 1.40 N.A. oil, 20x 0.75 N.A. dry<\/li>\n\n\n\n<li><strong>Emission detection range and spectral resolution:<\/strong> Detection range of 400-650nm with a resolution range of 1-20nm. Broadband scans also available.<\/li>\n\n\n\n<li><strong>Scanning Speed:<\/strong> 3 frames\/second for 512 pixels \u00d7 100 pixels with 20 nm spectral resolution; 1 frame\/second for 512 pixels \u00d7 300 pixels with 20 nm spectral resolution<\/li>\n\n\n\n<li><strong>Applications:<\/strong> FRET, fluorophore characterization, Z-stack measurements, emission and excitation spectra, time series<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"uwm-l-col\">\n<div class=\"uwm-p-slider uwm-p-slider--dots-outside\"><div class=\"uwm-p-slider--base\"><figure class=\"\"><img decoding=\"async\" src=\"https:\/\/uwm.edu\/microspectroscopy-collaboratory\/wp-content\/uploads\/sites\/280\/2020\/01\/Instrument1_Image-1_20200113.jpg\" alt=\"Laser microscopy instrument setup with computer workstation in a darkened laboratory room\" title=\"Laser microscopy instrument setup with computer workstation in a darkened laboratory room\" loading=\"lazy\" width=\"750\" height=\"500\"\/><\/figure><figure class=\"\"><img decoding=\"async\" src=\"https:\/\/uwm.edu\/microspectroscopy-collaboratory\/wp-content\/uploads\/sites\/280\/2020\/01\/Instrument1_Image-2_20200113.jpg\" alt=\"Labeled diagram of laser scanning microscope showing laser, power-control, scanning, detection, and camera modules\" title=\"Labeled diagram of laser scanning microscope showing laser, power-control, scanning, detection, and camera modules\" loading=\"lazy\" width=\"750\" height=\"500\"\/><\/figure><\/div><\/div>\n<\/div>\n<\/div>\n\n\n\n<hr class=\"has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-microspectroscope-2\">Microspectroscope #2 <\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-technical-specifications-0\">Technical Specifications<\/h3>\n\n\n\n<div class=\"uwm-l-row uwm-l-row--6\">\n<div class=\"uwm-l-col\">\n<ul class=\"wp-block-list\">\n<li><strong>System Overview:<\/strong> Two-photon excitation with multiple options for beam shapes (point, line, and 10&#215;4 array of points). Two lasers incorporated for simultaneous excitation of sample at two preselected wavelengths.<\/li>\n\n\n\n<li><strong>Laser 1:<\/strong> Spectra Physics Mai Tai Deepsee with wavelength range 750-900 nm.<\/li>\n\n\n\n<li><strong>Laser 2:<\/strong> Spectra Physics Mai Tai HP with wavelength range 900-1040 nm.<\/li>\n\n\n\n<li><strong>Detector:<\/strong> Andor iXon Ultra electron multiplying CCD<\/li>\n\n\n\n<li><strong>Microscope Stand:<\/strong> Zeiss Axio Observer inverted<\/li>\n\n\n\n<li><strong>Objectives:<\/strong> 63X 1.3 N.A. water immersion with corrective collar, 10x 0.25 N.A. dry<\/li>\n\n\n\n<li><strong>Emission detection range and spectral resolution:<\/strong> Detection range of 400-650 nm with a resolution range of 2-40nm. Broadband scans also available.<\/li>\n\n\n\n<li><strong>Scanning Speed:<\/strong> 1.7 frames\/second for 400 pixels \u00d7 300 pixels with 20 nm spectral resolution for line scan; 0.1 frames\/second for 400 pixel \u00d7 320 pixels with 20 nm spectral resolution for point-array scan with soft pinhole detection. Faster speeds possible for smaller fields of view.<\/li>\n\n\n\n<li><strong>Applications:<\/strong> FRET, FRAP, soft pinhole scanning, fluorophore characterization, emission spectra, Z-Stack measurements, time series.<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"uwm-l-col\">\n<div class=\"uwm-p-slider\"><div class=\"uwm-p-slider--base\"><figure class=\"\"><img decoding=\"async\" src=\"https:\/\/uwm.edu\/microspectroscopy-collaboratory\/wp-content\/uploads\/sites\/280\/2020\/01\/Instrument2_Image-1_20200113.jpg\" alt=\"Laser microscopy instrument behind black light-blocking curtains with danger warning sign\" title=\"Laser microscopy instrument behind black light-blocking curtains with danger warning sign\" loading=\"lazy\" width=\"750\" height=\"500\"\/><\/figure><figure class=\"\"><img decoding=\"async\" src=\"https:\/\/uwm.edu\/microspectroscopy-collaboratory\/wp-content\/uploads\/sites\/280\/2020\/01\/Instrument2_Image-2_20200113.jpg\" alt=\"Labeled diagram of advanced laser microscope showing dual lasers, beam shaping, scanning, detection, and camera modules\" title=\"Labeled diagram of advanced laser microscope showing dual lasers, beam shaping, scanning, detection, and camera modules\" loading=\"lazy\" width=\"750\" height=\"500\"\/><\/figure><\/div><\/div>\n<\/div>\n<\/div>\n\n\n\n<hr class=\"has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-optical-amp-force-microspectroscope-1-fully-functional-prototype\">Optical &amp; Force Microspectroscope #1: Fully Functional Prototype<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-technical-specifications-1\">Technical Specifications<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>System Overview:<\/strong> Multimodal instrument combining magnetic tweezers and spectrally resolved fluorescence microscope enabling simultaneous force and fluorescence spectroscopy measurements of single molecules and molecular aggregates<\/li>\n\n\n\n<li><strong>Excitation source:<\/strong> Spectra-Physics Tsunami BB, with wavelength range of 750nm\u2013860 nm, combined with BiB3O6 (BIBO) crystal for second harmonic generation of femtosecond pulses in visible range of 375-430 nm<\/li>\n\n\n\n<li><strong>Detectors:<\/strong> Andor iXon Ultra electron multiplying CCD, Allied Vision Pike F-032b CCD<\/li>\n\n\n\n<li><strong>Microscope Stand:<\/strong> Nikon Eclipse Ti-U inverted<\/li>\n\n\n\n<li><strong>Objectives:<\/strong> 100x 1.45 N.A oil, 20x 0.75 N.A. dry<\/li>\n\n\n\n<li><strong>Fluorescence emission detection range and spectral resolution:<\/strong> Detection range of 400-560 nm with a resolution range of 2.5-50nm. Broadband scans also available.<\/li>\n\n\n\n<li><strong>Scanning Speed fluorescence measurements:<\/strong> 55 frames\/second for 512 pixels \u00d7 1 pixels with 25 nm spectral resolution; 5 frames\/second for 512 pixels \u00d7 100 pixels with 25 nm spectral resolution; 1.7 frames\/second for 512 pixels \u00d7 300 pixels with 25 nm spectral resolution<\/li>\n\n\n\n<li><strong>Force spectroscopy molecular extension and force resolution:<\/strong> Molecular extension measured with resolution of 10 nm under mechanical perturbations applied with forces ranging from 0.1 pN to 1 nN range.<\/li>\n\n\n\n<li><strong>Frame rate molecular extension measurements:<\/strong> 1 kHz<\/li>\n\n\n\n<li><strong>Applications:<\/strong> Multimodal fluorescence microscopy and force spectroscopy FRET, fluorophore characterization, time series, Z-Stack measurements, emission spectra.<\/li>\n<\/ul>\n\n\n\n<hr class=\"has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-optical-amp-force-microspectroscope-2-under-development\">Optical &amp; Force Microspectroscope #2: Under Development<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-technical-specifications-2\">Technical Specifications<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>System Overview:<\/strong> Multimodal instrument combining magnetic tweezers and spectrally resolved fluorescence microscope enabling simultaneous force and fluorescence spectroscopy measurements of single molecules and molecular aggregates<\/li>\n\n\n\n<li><strong>Excitation source:<\/strong> Spectra Physics Mai Tai with wavelength range 750-1040 combined with BiB3O6 (BIBO) crystal for second harmonic generation of femtosecond pulses in visible range of 375-520 nm<\/li>\n\n\n\n<li><strong>Detector:<\/strong> Andor iXon Ultra electron multiplying CCD, Allied Vision Pike F-032b CCD<\/li>\n\n\n\n<li><strong>Microscope Stand:<\/strong> Zeiss Axio Observer inverted<\/li>\n\n\n\n<li><strong>Objectives:<\/strong> 100X 1.57 N.A oil with corrective collar<\/li>\n\n\n\n<li><strong>Fluorescence emission detection range and spectral resolution:<\/strong> Detection range of 400-560 nm with a resolution range of 2.5-50nm. Broadband scans also available.<\/li>\n\n\n\n<li><strong>Scanning Speed fluorescence measurements:<\/strong> 55 frames\/second for 512 pixels \u00d7 1 pixels with 25 nm spectral resolution; 5 frames\/second for 512 pixels \u00d7 100 pixels with 25 nm spectral resolution; 1.7 frames\/second for 512 pixels \u00d7 300 pixels with 25 nm spectral resolution<\/li>\n\n\n\n<li><strong>Force spectroscopy molecular extension and force resolution:<\/strong> Molecular extension measured with resolution of 10 nm under mechanical perturbations applied with forces ranging from 0.1 pN to 1 nN range.<\/li>\n\n\n\n<li><strong>Frame rate molecular extension measurements:<\/strong> 1 kHz<\/li>\n\n\n\n<li><strong>Applications:<\/strong> multimodal fluorescence microscopy and force spectroscopy FRET, fluorophore characterization, time series, Z-Stack measurements, emission spectra<\/li>\n<\/ul>\n\n\n\n<p>Please contact Prof. Raicu at <a href=\"mailto:vraicu@uwm.edu\">vraicu@uwm.edu<\/a> with questions about the facility.<\/p>\n\n\n\n<p>Measurement schemes that are different from the standard ones offered will require communication with Prof. Raicu well ahead of experiment time, as extensive preparations are required and might incur additional costs.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Microspectroscope #1 Technical Specifications Microspectroscope #2 Technical Specifications Optical &amp; Force Microspectroscope #1: Fully Functional Prototype Technical Specifications Optical &amp; Force Microspectroscope #2: Under Development Technical Specifications Please contact Prof. Raicu at vraicu@uwm.edu with questions about the facility. Measurement schemes &hellip;<\/p>\n","protected":false},"author":28,"featured_media":0,"parent":0,"menu_order":4,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":"","uwm_wg_additional_authors":[]},"class_list":["post-37","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Biophysical Microspectroscopy Facility - Micro-Spectroscopy Collaboratory<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/uwm.edu\/microspectroscopy-collaboratory\/optimis-facility\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Biophysical Microspectroscopy Facility\" \/>\n<meta property=\"og:description\" content=\"Microspectroscope #1 Technical Specifications Microspectroscope #2 Technical Specifications Optical &amp; Force Microspectroscope #1: Fully Functional Prototype Technical Specifications Optical &amp; Force Microspectroscope #2: Under Development Technical Specifications Please contact Prof. Raicu at vraicu@uwm.edu with questions about the facility. 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