Teraview Limited

Vincent Patrick Wallace

Bryan Edward Cole

Brian Robertson

Donald Dominic Arnone

Michael John Withers

Anthony J Fitzgerald

John Baker

Ruth Mary Woodward

A THz radiation probe () for examining an object (), the probe comprising a first portion configured to be inserted into an opening of said object in a first direction (), said probe further comprising at least one THz emitter (), directing means () for directing THz radiation emitted from said emitter to said object via an aperture () located at said first portion and subsequently from said object to at least one THz detector () and, means for scanning said emitted THz radiation across said object in a scan direction, said scan direction having a component in said first direction ().

Scanning terahertz probe

A method of investigating a sample (breast tissue) (), the sample comprising at least a first material (normal breast tissue) in order to determine they presence of at least one further material (cancerous tissue), the method comprising the steps of: Irradiating the sample with electromagnetic radiation in the range from 25 GHz to 100 THz; Detecting radiation reflected from the sample; Determining a parameter related to the amplitude of the radiation, which is reflected from the sample, in the time domain; Analyzing the parameter derived in step (c) in order to determine if the sample further comprises the at least one further material wherein the irradiating and reflected radiation passes through a (z-cut quartz) window member () having a refractive index that falls between the refractive indices of the at least first and at least one further materials.

Image of sample using terahertz time domain spectroscopy in reflection mode to identify in a first material like normal breast tissue a second material like cancerous tissue by evaluating the phase change at the interface between the sample and a window like a quartz window, against which the sample is pressed

A method of imaging a sample, the method comprising: (a) irradiating a sample with a pulse of electromagnetic radiation, said pulse having a plurality of frequencies in the range from 25 GHz to 100 THz; (b) determining a first parameter related to the amplitude of the radiation, which is either reflected from and/or transmitted by the sample, in the time domain; (c) calculating the value of the first parameter at a first time value relative to the value of the first parameter at a second time value which coincides with a physical feature of the dataset of the first parameter with respect to time; and (d) generating an image by plotting the value calculated in step (c) for different points of the sample.

Imaging apparatus and method

Growing community of inventors

Cambridge, United Kingdom

Vincent Patrick Wallace