[et_pb_section fb_built=\u00bb1″ admin_label=\u00bbsection\u00bb _builder_version=\u00bb4.5.1″ background_color=\u00bb#e1e1e1″ custom_padding=\u00bb0px||0px|\u00bb transparent_background=\u00bboff\u00bb make_fullwidth=\u00bboff\u00bb use_custom_width=\u00bboff\u00bb width_unit=\u00bbon\u00bb][et_pb_row column_structure=\u00bb1_3,1_3,1_3″ use_custom_gutter=\u00bbon\u00bb gutter_width=\u00bb1″ make_equal=\u00bbon\u00bb admin_label=\u00bbrow\u00bb module_class=\u00bb et_pb_row_fullwidth\u00bb _builder_version=\u00bb4.5.1″ background_size=\u00bbinitial\u00bb background_position=\u00bbtop_left\u00bb background_repeat=\u00bbrepeat\u00bb width=\u00bb100%\u00bb width_tablet=\u00bb100%\u00bb width_phone=\u00bb\u00bb width_last_edited=\u00bbon|desktop\u00bb max_width=\u00bb100%\u00bb max_width_tablet=\u00bb100%\u00bb max_width_phone=\u00bb\u00bb max_width_last_edited=\u00bbon|desktop\u00bb custom_padding=\u00bb0px||0px|\u00bb make_fullwidth=\u00bbon\u00bb use_custom_width=\u00bboff\u00bb width_unit=\u00bbon\u00bb][et_pb_column type=\u00bb1_3″ _builder_version=\u00bb4.5.1″ background_color=\u00bb#3b4249″ custom_padding=\u00bb45px|45px|22.5px|45px|false|false\u00bb custom_padding__hover=\u00bb|||\u00bb][et_pb_post_title meta=\u00bboff\u00bb featured_image=\u00bboff\u00bb _builder_version=\u00bb4.5.6″ _module_preset=\u00bbdefault\u00bb title_text_color=\u00bb#d7ac2f\u00bb][\/et_pb_post_title][\/et_pb_column][et_pb_column type=\u00bb1_3″ _builder_version=\u00bb4.5.1″ background_color=\u00bb#d1d1cb\u00bb custom_padding=\u00bb45px|45px|22.5px|45px|false|false\u00bb custom_padding__hover=\u00bb|||\u00bb][et_pb_text admin_label=\u00bbTexto\u00bb _builder_version=\u00bb4.5.7″ background_size=\u00bbinitial\u00bb background_position=\u00bbtop_left\u00bb background_repeat=\u00bbrepeat\u00bb use_border_color=\u00bboff\u00bb border_color=\u00bb#ffffff\u00bb border_style=\u00bbsolid\u00bb]<\/p>\n
<\/span><\/p>\n [\/et_pb_text][\/et_pb_column][et_pb_column type=\u00bb1_3″ _builder_version=\u00bb4.5.1″ background_color=\u00bb#d1d1cb\u00bb custom_padding=\u00bb45px|45px|22.5px|45px|false|false\u00bb custom_padding__hover=\u00bb|||\u00bb][et_pb_text admin_label=\u00bbTexto\u00bb _builder_version=\u00bb4.5.1″ background_size=\u00bbinitial\u00bb background_position=\u00bbtop_left\u00bb background_repeat=\u00bbrepeat\u00bb use_border_color=\u00bboff\u00bb border_color=\u00bb#ffffff\u00bb border_style=\u00bbsolid\u00bb]<\/p>\n Light is a wave or it is a particle? Actually is both of them, as quantum physics explain. As it acts as a particle, it interacts with matter. This interaction is studied by optomechanics. Even in a macroscopic scale light pressure has its effects, light can move a mirror or can make some flat panels rotate. But what happens if the object that interacts with is a nanowire? [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00bb4.5.1″ _module_preset=\u00bbdefault\u00bb background_color=\u00bb#e1e1e1″][et_pb_column type=\u00bb4_4″ _builder_version=\u00bb4.5.1″ _module_preset=\u00bbdefault\u00bb background_color=\u00bb#e1e1e1″][et_pb_image src=\u00bbhttps:\/\/outreach-wp.ixole.es\/wp-content\/uploads\/2020\/08\/fuster.jpg\u00bb title_text=\u00bbfuster\u00bb url=\u00bbhttps:\/\/outreach-wp.ixole.es\/wp-content\/uploads\/2020\/08\/fuster.jpg\u00bb align=\u00bbcenter\u00bb force_fullwidth=\u00bbon\u00bb _builder_version=\u00bb4.5.7″ _module_preset=\u00bbdefault\u00bb hover_enabled=\u00bb0″][\/et_pb_image][et_pb_post_nav _builder_version=\u00bb4.5.1″ _module_preset=\u00bbdefault\u00bb title_font=\u00bb|600|||||||\u00bb title_text_color=\u00bb#918050″][\/et_pb_post_nav][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00bb1_3,1_3,1_3″ use_custom_gutter=\u00bbon\u00bb gutter_width=\u00bb1″ make_equal=\u00bbon\u00bb admin_label=\u00bbrow\u00bb module_class=\u00bb et_pb_row_fullwidth\u00bb _builder_version=\u00bb4.5.1″ background_size=\u00bbinitial\u00bb background_position=\u00bbtop_left\u00bb background_repeat=\u00bbrepeat\u00bb width=\u00bb100%\u00bb width_tablet=\u00bb100%\u00bb width_phone=\u00bb\u00bb width_last_edited=\u00bbon|desktop\u00bb max_width=\u00bb100%\u00bb max_width_tablet=\u00bb100%\u00bb max_width_phone=\u00bb\u00bb max_width_last_edited=\u00bbon|desktop\u00bb custom_padding=\u00bb0px||0px|\u00bb make_fullwidth=\u00bbon\u00bb use_custom_width=\u00bboff\u00bb width_unit=\u00bbon\u00bb][et_pb_column type=\u00bb1_3″ _builder_version=\u00bb4.5.1″ background_color=\u00bb#e1e1e1″ custom_padding=\u00bb|45px||45px|false|false\u00bb custom_padding__hover=\u00bb|||\u00bb][\/et_pb_column][et_pb_column type=\u00bb1_3″ _builder_version=\u00bb4.5.1″ background_color=\u00bb#e1e1e1″ custom_padding=\u00bb|45px||45px|false|false\u00bb custom_padding__hover=\u00bb|||\u00bb][\/et_pb_column][et_pb_column type=\u00bb1_3″ _builder_version=\u00bb4.5.1″ background_color=\u00bb#e1e1e1″ custom_padding=\u00bb|45px||45px|false|false\u00bb custom_padding__hover=\u00bb|||\u00bb][et_pb_button button_url=\u00bb@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF9saW5rX3VybF9wb3N0Iiwic2V0dGluZ3MiOnsicG9zdF9pZCI6IjYzNjUifX0=@\u00bb button_text=\u00bbTornar als projectes\u00bb button_alignment=\u00bbleft\u00bb admin_label=\u00bbBot\u00f3n Dorado\u00bb module_id=\u00bbbotons\u00bb module_class=\u00bbbotons\u00bb _builder_version=\u00bb4.5.7″ _dynamic_attributes=\u00bbbutton_url\u00bb custom_button=\u00bbon\u00bb button_text_color=\u00bb#918050″ button_border_color=\u00bb#918050″ button_icon_color=\u00bb#918050″ button_on_hover=\u00bboff\u00bb custom_css_main_element=\u00bbmargin-top: 10px;\u00bb custom_css_after=\u00bb margin-left: 0px !important;\u00bb button_text_color_hover=\u00bb#918050″ button_border_color_hover=\u00bb#918050″ button_border_radius_hover=\u00bb0″ button_letter_spacing_hover=\u00bb0″ saved_tabs=\u00bball\u00bb button_text_size__hover_enabled=\u00bboff\u00bb button_one_text_size__hover_enabled=\u00bboff\u00bb button_two_text_size__hover_enabled=\u00bboff\u00bb button_text_color__hover_enabled=\u00bbon\u00bb button_text_color__hover=\u00bb#918050″ button_one_text_color__hover_enabled=\u00bboff\u00bb button_two_text_color__hover_enabled=\u00bboff\u00bb button_border_width__hover_enabled=\u00bboff\u00bb button_one_border_width__hover_enabled=\u00bboff\u00bb button_two_border_width__hover_enabled=\u00bboff\u00bb button_border_color__hover_enabled=\u00bbon\u00bb button_border_color__hover=\u00bb#918050″ button_one_border_color__hover_enabled=\u00bboff\u00bb button_two_border_color__hover_enabled=\u00bboff\u00bb button_border_radius__hover_enabled=\u00bbon\u00bb button_border_radius__hover=\u00bb0″ button_one_border_radius__hover_enabled=\u00bboff\u00bb button_two_border_radius__hover_enabled=\u00bboff\u00bb button_letter_spacing__hover_enabled=\u00bbon\u00bb button_letter_spacing__hover=\u00bb0″ button_one_letter_spacing__hover_enabled=\u00bboff\u00bb button_two_letter_spacing__hover_enabled=\u00bboff\u00bb button_bg_color__hover_enabled=\u00bboff\u00bb button_one_bg_color__hover_enabled=\u00bboff\u00bb button_two_bg_color__hover_enabled=\u00bboff\u00bb][\/et_pb_button][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":" marc fuster la salle manlleu – manlleuLight is a wave or it is a particle? Actually is both of them, as quantum physics explain. As it acts as a particle, it interacts with matter. This interaction is studied by optomechanics. Even in a macroscopic scale light pressure has its effects, light can move a mirror […]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":""},"project_category":[225,226,262],"project_tag":[],"acf":[],"yoast_head":"\n<\/h3>\n
la salle manlleu – manlleu<\/span><\/h4>\n
In such dimensions (the diameter of the nanowire is 100 nm) quantum mechanics have an important weight on the motion of the resonator, another way to name our nanowire. In this level even the tiny pressure of the light or the contact with some particle might be decisive in our resonator\u2019s motion. If our aim is to study this nanotube\u2019s motion, and as some of you may know, stabilizing the nanowire\u2019s natural frequency is imperative, as we will need to apply our own forces to help us to study its motion. Is at this point where lasers are vital.
As nanowires act as objects with a motion a bit more complicated than the SHM. For this reason, they have frequency, a spring constant and a mass. In order to know its frequency we use a circuit of a collimated and
polarized laser, converged to lower than its wavelength and we make it reflex to our resonator. We detect it with a photodiode and we send our data to a computer via a hardware called Redpitaya.
As we receive a matrix of number it\u2019s hard to know our nanowire\u2019s motion. With the purpose of knowing the frequency we apply a procedure called demodulation, consisting of multiplication of a signal with a known frequency and amplitude (they must be as close as possible to the nanotube\u2019s one) and the application of a device called low pass filter to cut off the noise frequency. This demodulation will give us two constants and with a simple linear equation system we can know the frequency, phase and amplitude of the motion.
Once the demodulation is done, we can apply a signal with a secondary laser and an opposite phase in order to block the motion of our oscillator and make the experiments we want to do!<\/p>\n